NN3 postcode district: Northampton and around

NN3 is a postcode district in England, with 1,315 postcodes in use in 8 sectors. It has postcodes in Northampton and Moulton. It is split between 2 councils: West Northamptonshire (1,314 postcodes) and North Northamptonshire (1).

Postcodes in use
1,315
Sectors
8
Councils
2 councils
Places
2 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in NN3, by flood risk

Map of every postcode in NN3, by flood risk Of the 1,315 postcodes in NN3 that ONS places, 9 have a home or business at high risk, 4 are at medium risk at worst, 7 are at low risk at worst, 14 are at very low risk only and 1,281 are not on the Environment Agency's at-risk list. 5 postcodes lie beyond the edge and are listed under the map. Places named: Northampton, Moulton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A43 NN3 0AN: not on the flood risk listNN3 2AA: not on the flood risk listNN3 2AB: not on the flood risk listNN3 2AD: not on the flood risk listNN3 2AF: not on the flood risk listNN3 2AG: not on the flood risk listNN3 2AH: not on the flood risk listNN3 2AJ: not on the flood risk listNN3 2AP: not on the flood risk listNN3 2AQ: not on the flood risk listNN3 2AR: not on the flood risk listNN3 2AS: not on the flood risk listNN3 2AT: not on the flood risk listNN3 2AW: not on the flood risk listNN3 2AX: not on the flood risk listNN3 2AY: not on the flood risk listNN3 2AZ: not on the flood risk listNN3 2BA: not on the flood risk listNN3 2BB: not on the flood risk listNN3 2BD: not on the flood risk listNN3 2BE: not on the flood risk listNN3 2BF: not on the flood risk listNN3 2BG: not on the flood risk listNN3 2BL: not on the flood risk listNN3 2BP: not on the flood risk listNN3 2BS: not on the flood risk listNN3 2BT: not on the flood risk listNN3 2BU: not on the flood risk listNN3 2BX: not on the flood risk listNN3 2BY: not on the flood risk listNN3 2BZ: not on the flood risk listNN3 2DA: not on the flood risk listNN3 2DB: not on the flood risk listNN3 2DD: not on the flood risk listNN3 2DF: not on the flood risk listNN3 2DG: not on the flood risk listNN3 2DH: not on the flood risk listNN3 2DJ: not on the flood risk listNN3 2HA: not on the flood risk listNN3 2HE: not on the flood risk listNN3 2HF: not on the flood risk listNN3 2HG: not on the flood risk listNN3 2HH: not on the flood risk listNN3 2HS: not on the flood risk listNN3 2HT: not on the flood risk listNN3 2HU: not on the flood risk listNN3 2HX: not on the flood risk listNN3 2HY: not on the flood risk listNN3 2HZ: not on the flood risk listNN3 2JA: not on the flood risk listNN3 2JD: not on the flood risk listNN3 2JE: not on the flood risk listNN3 2JF: not on the flood risk listNN3 2JG: not on the flood risk listNN3 2JH: not on the flood risk listNN3 2JJ: not on the flood risk listNN3 2JL: not on the flood risk listNN3 2JN: not on the flood risk listNN3 2JP: not on the flood risk listNN3 2JQ: not on the flood risk listNN3 2JR: not on the flood risk listNN3 2JS: not on the flood risk listNN3 2JT: not on the flood risk listNN3 2JU: not on the flood risk listNN3 2JW: not on the flood risk listNN3 2LD: not on the flood risk listNN3 2LE: not on the flood risk listNN3 2LF: not on the flood risk listNN3 2LG: not on the flood risk listNN3 2LH: not on the flood risk listNN3 2LJ: not on the flood risk listNN3 2LL: not on the flood risk listNN3 2LN: not on the flood risk listNN3 2LP: not on the flood risk listNN3 2LR: not on the flood risk listNN3 2LS: not on the flood risk listNN3 2LT: not on the flood risk listNN3 2LU: not on the flood risk listNN3 2LW: not on the flood risk listNN3 2LX: not on the flood risk listNN3 2LZ: not on the flood risk listNN3 2NA: not on the flood risk listNN3 2NB: not on the flood risk listNN3 2ND: not on the flood risk listNN3 2NE: not on the flood risk listNN3 2NF: not on the flood risk listNN3 2NG: not on the flood risk listNN3 2NL: not on the flood risk listNN3 2NP: not on the flood risk listNN3 2NQ: not on the flood risk listNN3 2NR: not on the flood risk listNN3 2NT: not on the flood risk listNN3 2NU: not on the flood risk listNN3 2NX: not on the flood risk listNN3 2NY: not on the flood risk listNN3 2PA: not on the flood risk listNN3 2PD: not on the flood risk listNN3 2PF: not on the flood risk listNN3 2PG: not on the flood risk listNN3 2PR: not on the flood risk listNN3 2PS: not on the flood risk listNN3 2PT: not on the flood risk listNN3 2PX: not on the flood risk listNN3 2PZ: not on the flood risk listNN3 2QA: not on the flood risk listNN3 2QB: not on the flood risk listNN3 2QE: not on the flood risk listNN3 2QF: not on the flood risk listNN3 2QG: not on the flood risk listNN3 2QH: not on the flood risk listNN3 2QJ: not on the flood risk listNN3 2QL: not on the flood risk listNN3 2QN: not on the flood risk listNN3 2QQ: not on the flood risk listNN3 2QX: not on the flood risk listNN3 2QZ: not on the flood risk listNN3 2RA: not on the flood risk listNN3 2RB: not on the flood risk listNN3 2RE: not on the flood risk listNN3 2RF: not on the flood risk listNN3 2RG: not on the flood risk listNN3 2RH: not on the flood risk listNN3 2RJ: not on the flood risk listNN3 2RL: not on the flood risk listNN3 2RN: not on the flood risk listNN3 2RP: not on the flood risk listNN3 2RQ: not on the flood risk listNN3 2RS: not on the flood risk listNN3 2RU: not on the flood risk listNN3 2RW: not on the flood risk listNN3 2SG: not on the flood risk listNN3 2SH: not on the flood risk listNN3 2SJ: not on the flood risk listNN3 2SL: not on the flood risk listNN3 2SN: not on the flood risk listNN3 2SP: not on the flood risk listNN3 2SQ: not on the flood risk listNN3 2SR: not on the flood risk listNN3 2SU: not on the flood risk listNN3 2SW: not on the flood risk listNN3 2SX: not on the flood risk listNN3 2SY: not on the flood risk listNN3 2SZ: not on the flood risk listNN3 2TA: not on the flood risk listNN3 2TB: not on the flood risk listNN3 2TD: not on the flood risk listNN3 2TE: not on the flood risk listNN3 2TH: not on the flood risk listNN3 2TJ: not on the flood risk listNN3 2TL: not on the flood risk listNN3 2TP: not on the flood risk listNN3 2TQ: not on the flood risk listNN3 2TR: not on the flood risk listNN3 2TS: not on the flood risk listNN3 3AA: not on the flood risk listNN3 3AB: not on the flood risk listNN3 3AD: not on the flood risk listNN3 3AE: not on the flood risk listNN3 3AF: not on the flood risk listNN3 3AG: not on the flood risk listNN3 3AH: not on the flood risk listNN3 3AJ: not on the flood risk listNN3 3AL: not on the flood risk listNN3 3AN: not on the flood risk listNN3 3AP: not on the flood risk listNN3 3AR: not on the flood risk listNN3 3AS: not on the flood risk listNN3 3AT: not on the flood risk listNN3 3AU: not on the flood risk listNN3 3AW: not on the flood risk listNN3 3AY: not on the flood risk listNN3 3AZ: not on the flood risk listNN3 3BA: not on the flood risk listNN3 3BB: not on the flood risk listNN3 3BD: not on the flood risk listNN3 3BE: not on the flood risk listNN3 3BF: not on the flood risk listNN3 3BG: not on the flood risk listNN3 3BH: not on the flood risk listNN3 3BJ: not on the flood risk listNN3 3BL: not on the flood risk listNN3 3BN: not on the flood risk listNN3 3BP: not on the flood risk listNN3 3BQ: not on the flood risk listNN3 3BS: not on the flood risk listNN3 3BT: not on the flood risk listNN3 3BU: not on the flood risk listNN3 3BW: not on the flood risk listNN3 3BX: not on the flood risk listNN3 3BY: not on the flood risk listNN3 3BZ: not on the flood risk listNN3 3DA: not on the flood risk listNN3 3DB: not on the flood risk listNN3 3DD: not on the flood risk listNN3 3DE: not on the flood risk listNN3 3DF: not on the flood risk listNN3 3DG: not on the flood risk listNN3 3DJ: not on the flood risk listNN3 3DL: not on the flood risk listNN3 3DN: not on the flood risk listNN3 3DP: not on the flood risk listNN3 3DQ: not on the flood risk listNN3 3DR: not on the flood risk listNN3 3DS: not on the flood risk listNN3 3DU: not on the flood risk listNN3 3DW: not on the flood risk listNN3 3DX: not on the flood risk listNN3 3DY: not on the flood risk listNN3 3DZ: not on the flood risk listNN3 3EB: not on the flood risk listNN3 3ED: not on the flood risk listNN3 3EE: not on the flood risk listNN3 3EF: not on the flood risk listNN3 3EG: not on the flood risk listNN3 3EN: not on the flood risk listNN3 3EP: not on the flood risk listNN3 3EQ: not on the flood risk listNN3 3ER: not on the flood risk listNN3 3ES: not on the flood risk listNN3 3ET: not on the flood risk listNN3 3EU: not on the flood risk listNN3 3EY: not on the flood risk listNN3 3EZ: not on the flood risk listNN3 3FA: not on the flood risk listNN3 3FB: not on the flood risk listNN3 3FD: not on the flood risk listNN3 3HA: not on the flood risk listNN3 3HG: not on the flood risk listNN3 3HH: not on the flood risk listNN3 3HN: not on the flood risk listNN3 3HP: not on the flood risk listNN3 3HQ: not on the flood risk listNN3 3HR: not on the flood risk listNN3 3HS: not on the flood risk listNN3 3HT: not on the flood risk listNN3 3HU: not on the flood risk listNN3 3HW: not on the flood risk listNN3 3HX: not on the flood risk listNN3 3HY: not on the flood risk listNN3 3JA: not on the flood risk listNN3 3JB: not on the flood risk listNN3 3JD: not on the flood risk listNN3 3JE: not on the flood risk listNN3 3JF: not on the flood risk listNN3 3JG: not on the flood risk listNN3 3JH: not on the flood risk listNN3 3JJ: not on the flood risk listNN3 3JL: not on the flood risk listNN3 3JP: not on the flood risk listNN3 3JQ: not on the flood risk listNN3 3JR: not on the flood risk listNN3 3JS: not on the flood risk listNN3 3JT: not on the flood risk listNN3 3JU: not on the flood risk listNN3 3JW: not on the flood risk listNN3 3JX: not on the flood risk listNN3 3JY: not on the flood risk listNN3 3LE: not on the flood risk listNN3 3LG: not on the flood risk listNN3 3LH: not on the flood risk listNN3 3LJ: not on the flood risk listNN3 3LL: not on the flood risk listNN3 3LN: not on the flood risk listNN3 3LP: not on the flood risk listNN3 3LQ: not on the flood risk listNN3 3LR: not on the flood risk listNN3 3LS: not on the flood risk listNN3 3LT: not on the flood risk listNN3 3LU: not on the flood risk listNN3 3LW: not on the flood risk listNN3 3LY: not on the flood risk listNN3 3LZ: not on the flood risk listNN3 3NA: not on the flood risk listNN3 3NB: not on the flood risk listNN3 3ND: not on the flood risk listNN3 3NE: not on the flood risk listNN3 3NF: not on the flood risk listNN3 3NJ: not on the flood risk listNN3 3NQ: not on the flood risk listNN3 3NR: not on the flood risk listNN3 3NS: not on the flood risk listNN3 3NW: not on the flood risk listNN3 3NX: not on the flood risk listNN3 3NY: not on the flood risk listNN3 3NZ: not on the flood risk listNN3 3PA: not on the flood risk listNN3 3PB: not on the flood risk listNN3 3PE: not on the flood risk listNN3 3PF: not on the flood risk listNN3 3PG: not on the flood risk listNN3 3PH: not on the flood risk listNN3 3PJ: not on the flood risk listNN3 3PQ: not on the flood risk listNN3 3QA: not on the flood risk listNN3 3QB: not on the flood risk listNN3 3QD: not on the flood risk listNN3 3QF: not on the flood risk listNN3 3QZ: not on the flood risk listNN3 3RA: not on the flood risk listNN3 3RB: not on the flood risk listNN3 3RD: not on the flood risk listNN3 3RE: not on the flood risk listNN3 3RF: not on the flood risk listNN3 3RH: not on the flood risk listNN3 3RJ: not on the flood risk listNN3 3RL: not on the flood risk listNN3 3RN: not on the flood risk listNN3 3RP: not on the flood risk listNN3 3RQ: not on the flood risk listNN3 3RR: not on the flood risk listNN3 3RS: not on the flood risk listNN3 3RT: not on the flood risk listNN3 3RU: not on the flood risk listNN3 3RW: not on the flood risk listNN3 3RX: not on the flood risk listNN3 3RY: not on the flood risk listNN3 3RZ: not on the flood risk listNN3 3SA: not on the flood risk listNN3 3XB: not on the flood risk listNN3 3XE: not on the flood risk listNN3 3XG: not on the flood risk listNN3 3XJ: not on the flood risk listNN3 3XL: not on the flood risk listNN3 5AA: not on the flood risk listNN3 5AB: not on the flood risk listNN3 5AD: not on the flood risk listNN3 5AE: not on the flood risk listNN3 5AF: not on the flood risk listNN3 5AG: not on the flood risk listNN3 5AH: not on the flood risk listNN3 5AL: not on the flood risk listNN3 5AN: not on the flood risk listNN3 5AP: not on the flood risk listNN3 5AQ: not on the flood risk listNN3 5AS: not on the flood risk listNN3 5AT: not on the flood risk listNN3 5AU: not on the flood risk listNN3 5AW: not on the flood risk listNN3 5AX: not on the flood risk listNN3 5AY: not on the flood risk listNN3 5AZ: not on the flood risk listNN3 5BA: not on the flood risk listNN3 5BB: not on the flood risk listNN3 5BD: not on the flood risk listNN3 5BE: not on the flood risk listNN3 5BG: not on the flood risk listNN3 5BH: not on the flood risk listNN3 5BJ: not on the flood risk listNN3 5BL: not on the flood risk listNN3 5BN: not on the flood risk listNN3 5BQ: not on the flood risk listNN3 5BS: not on the flood risk listNN3 5BU: not on the flood risk listNN3 5BW: not on the flood risk listNN3 5BX: not on the flood risk listNN3 5DA: not on the flood risk listNN3 5DB: not on the flood risk listNN3 5DD: not on the flood risk listNN3 5DE: not on the flood risk listNN3 5DF: not on the flood risk listNN3 5DG: not on the flood risk listNN3 5DH: not on the flood risk listNN3 5DJ: not on the flood risk listNN3 5DL: not on the flood risk listNN3 5DN: not on the flood risk listNN3 5DP: not on the flood risk listNN3 5DQ: not on the flood risk listNN3 5DT: not on the flood risk listNN3 5DU: not on the flood risk listNN3 5DX: not on the flood risk listNN3 5DY: not on the flood risk listNN3 5DZ: not on the flood risk listNN3 5EA: not on the flood risk listNN3 5EB: not on the flood risk listNN3 5ED: not on the flood risk listNN3 5EE: not on the flood risk listNN3 5EF: not on the flood risk listNN3 5EG: not on the flood risk listNN3 5EH: not on the flood risk listNN3 5EJ: not on the flood risk listNN3 5EL: not on the flood risk listNN3 5EN: not on the flood risk listNN3 5EP: not on the flood risk listNN3 5EQ: not on the flood risk listNN3 5ER: not on the flood risk listNN3 5ES: not on the flood risk listNN3 5ET: not on the flood risk listNN3 5EU: not on the flood risk listNN3 5EW: not on the flood risk listNN3 5EX: not on the flood risk listNN3 5EY: not on the flood risk listNN3 5EZ: not on the flood risk listNN3 5FA: not on the flood risk listNN3 5FB: not on the flood risk listNN3 5GA: not on the flood risk listNN3 5GB: not on the flood risk listNN3 5GH: not on the flood risk listNN3 5GP: not on the flood risk listNN3 5GR: not on the flood risk listNN3 5HA: not on the flood risk listNN3 5HB: not on the flood risk listNN3 5HD: not on the flood risk listNN3 5HE: not on the flood risk listNN3 5HF: not on the flood risk listNN3 5HG: not on the flood risk listNN3 5HH: not on the flood risk listNN3 5HJ: not on the flood risk listNN3 5HL: not on the flood risk listNN3 5HN: not on the flood risk listNN3 5HP: not on the flood risk listNN3 5HS: not on the flood risk listNN3 5HT: not on the flood risk listNN3 5HU: not on the flood risk listNN3 5HW: not on the flood risk listNN3 5HX: not on the flood risk listNN3 5HY: not on the flood risk listNN3 5HZ: not on the flood risk listNN3 5JA: not on the flood risk listNN3 5JD: not on the flood risk listNN3 5JF: not on the flood risk listNN3 5JG: not on the flood risk listNN3 5JH: not on the flood risk listNN3 5JL: not on the flood risk listNN3 5JN: not on the flood risk listNN3 5JS: not on the flood risk listNN3 5JT: not on the flood risk listNN3 5JU: not on the flood risk listNN3 5JX: not on the flood risk listNN3 5JY: not on the flood risk listNN3 5JZ: not on the flood risk listNN3 5LA: not on the flood risk listNN3 5LB: not on the flood risk listNN3 5LD: not on the flood risk listNN3 5LF: not on the flood risk listNN3 5LH: not on the flood risk listNN3 5LL: not on the flood risk listNN3 5LN: not on the flood risk listNN3 5LY: not on the flood risk listNN3 5LZ: not on the flood risk listNN3 5NS: not on the flood risk listNN3 5NT: not on the flood risk listNN3 6AA: not on the flood risk listNN3 6AB: not on the flood risk listNN3 6AE: not on the flood risk listNN3 6AF: not on the flood risk listNN3 6AG: not on the flood risk listNN3 6AH: not on the flood risk listNN3 6AJ: not on the flood risk listNN3 6AL: not on the flood risk listNN3 6AP: not on the flood risk listNN3 6AQ: not on the flood risk listNN3 6AX: not on the flood risk listNN3 6AY: not on the flood risk listNN3 6BA: not on the flood risk listNN3 6BB: not on the flood risk listNN3 6BD: not on the flood risk listNN3 6BE: not on the flood risk listNN3 6BF: not on the flood risk listNN3 6BG: not on the flood risk listNN3 6BH: not on the flood risk listNN3 6BL: not on the flood risk listNN3 6BP: not on the flood risk listNN3 6BQ: not on the flood risk listNN3 6BS: not on the flood risk listNN3 6BT: not on the flood risk listNN3 6BU: not on the flood risk listNN3 6BW: not on the flood risk listNN3 6BX: not on the flood risk listNN3 6BY: not on the flood risk listNN3 6BZ: not on the flood risk listNN3 6DA: not on the flood risk listNN3 6DG: not on the flood risk listNN3 6DH: not on the flood risk listNN3 6DL: not on the flood risk listNN3 6DN: not on the flood risk listNN3 6DP: not on the flood risk listNN3 6DQ: not on the flood risk listNN3 6DR: not on the flood risk listNN3 6DS: not on the flood risk listNN3 6DT: not on the flood risk listNN3 6DU: not on the flood risk listNN3 6DW: not on the flood risk listNN3 6DX: not on the flood risk listNN3 6DZ: not on the flood risk listNN3 6EA: not on the flood risk listNN3 6EB: not on the flood risk listNN3 6ED: not on the flood risk listNN3 6EE: not on the flood risk listNN3 6EF: not on the flood risk listNN3 6EG: not on the flood risk listNN3 6EH: not on the flood risk listNN3 6EJ: not on the flood risk listNN3 6EL: not on the flood risk listNN3 6EN: not on the flood risk listNN3 6EP: not on the flood risk listNN3 6ER: not on the flood risk listNN3 6ES: not on the flood risk listNN3 6ET: not on the flood risk listNN3 6EW: not on the flood risk listNN3 6EX: not on the flood risk listNN3 6FA: not on the flood risk listNN3 6FE: not on the flood risk listNN3 6FF: not on the flood risk listNN3 6FL: not on the flood risk listNN3 6FU: not on the flood risk listNN3 6FW: not on the flood risk listNN3 6FX: not on the flood risk listNN3 6GF: not on the flood risk listNN3 6GL: not on the flood risk listNN3 6HA: not on the flood risk listNN3 6HB: not on the flood risk listNN3 6HE: not on the flood risk listNN3 6HG: not on the flood risk listNN3 6HL: not on the flood risk listNN3 6HN: not on the flood risk listNN3 6HP: not on the flood risk listNN3 6HQ: not on the flood risk listNN3 6HR: not on the flood risk listNN3 6HS: not on the flood risk listNN3 6HT: not on the flood risk listNN3 6HW: not on the flood risk listNN3 6HX: not on the flood risk listNN3 6HY: not on the flood risk listNN3 6HZ: not on the flood risk listNN3 6JA: not on the flood risk listNN3 6JB: not on the flood risk listNN3 6JD: not on the flood risk listNN3 6JE: not on the flood risk listNN3 6JF: not on the flood risk listNN3 6JG: not on the flood risk listNN3 6JH: not on the flood risk listNN3 6JJ: not on the flood risk listNN3 6JL: not on the flood risk listNN3 6JN: not on the flood risk listNN3 6JP: not on the flood risk listNN3 6JQ: not on the flood risk listNN3 6JR: not on the flood risk listNN3 6JS: not on the flood risk listNN3 6JT: not on the flood risk listNN3 6JW: not on the flood risk listNN3 6JX: not on the flood risk listNN3 6JY: not on the flood risk listNN3 6LF: not on the flood risk listNN3 6LG: not on the flood risk listNN3 6LL: not on the flood risk listNN3 6LR: not on the flood risk listNN3 6LZ: not on the flood risk listNN3 6NA: not on the flood risk listNN3 6NB: not on the flood risk listNN3 6ND: not on the flood risk listNN3 6NE: not on the flood risk listNN3 6NF: not on the flood risk listNN3 6NH: not on the flood risk listNN3 6NJ: not on the flood risk listNN3 6NN: not on the flood risk listNN3 6NP: not on the flood risk listNN3 6NQ: not on the flood risk listNN3 6NS: not on the flood risk listNN3 6NT: not on the flood risk listNN3 6NU: not on the flood risk listNN3 6NW: not on the flood risk listNN3 6NX: not on the flood risk listNN3 6NY: not on the flood risk listNN3 6NZ: not on the flood risk listNN3 6PA: not on the flood risk listNN3 6PB: not on the flood risk listNN3 6PD: not on the flood risk listNN3 6PF: not on the flood risk listNN3 6PG: not on the flood risk listNN3 6PH: not on the flood risk listNN3 6PJ: not on the flood risk listNN3 6PL: not on the flood risk listNN3 6PP: not on the flood risk listNN3 6PQ: not on the flood risk listNN3 6PR: not on the flood risk listNN3 6PS: not on the flood risk listNN3 6PT: not on the flood risk listNN3 6PU: not on the flood risk listNN3 6PW: not on the flood risk listNN3 6PX: not on the flood risk listNN3 6PZ: not on the flood risk listNN3 6QB: not on the flood risk listNN3 6QE: not on the flood risk listNN3 6QF: not on the flood risk listNN3 6QG: not on the flood risk listNN3 6QH: not on the flood risk listNN3 6QJ: not on the flood risk listNN3 6QL: not on the flood risk listNN3 6QN: not on the flood risk listNN3 6QP: not on the flood risk listNN3 6QR: not on the flood risk listNN3 6QS: not on the flood risk listNN3 6QT: not on the flood risk listNN3 6QU: not on the flood risk listNN3 6QW: not on the flood risk listNN3 6QX: not on the flood risk listNN3 6RL: not on the flood risk listNN3 6RP: not on the flood risk listNN3 6RT: not on the flood risk listNN3 6RU: not on the flood risk listNN3 6RW: not on the flood risk listNN3 6RX: not on the flood risk listNN3 6RZ: not on the flood risk listNN3 6SE: not on the flood risk listNN3 6SF: not on the flood risk listNN3 6SU: not on the flood risk listNN3 6TE: not on the flood risk listNN3 6UR: not on the flood risk listNN3 6WD: not on the flood risk listNN3 6WJ: not on the flood risk listNN3 6WL: not on the flood risk listNN3 6XF: not on the flood risk listNN3 6XJ: not on the flood risk listNN3 6XL: not on the flood risk listNN3 7AA: not on the flood risk listNN3 7AB: not on the flood risk listNN3 7AD: not on the flood risk listNN3 7AF: not on the flood risk listNN3 7AG: not on the flood risk listNN3 7AH: not on the flood risk listNN3 7AJ: not on the flood risk listNN3 7AL: not on the flood risk listNN3 7AN: not on the flood risk listNN3 7AP: not on the flood risk listNN3 7AQ: not on the flood risk listNN3 7AR: not on the flood risk listNN3 7AS: not on the flood risk listNN3 7AT: not on the flood risk listNN3 7AU: not on the flood risk listNN3 7AW: not on the flood risk listNN3 7AX: not on the flood risk listNN3 7AY: not on the flood risk listNN3 7AZ: not on the flood risk listNN3 7BA: not on the flood risk listNN3 7BB: not on the flood risk listNN3 7BD: not on the flood risk listNN3 7BE: not on the flood risk listNN3 7BF: not on the flood risk listNN3 7BG: not on the flood risk listNN3 7BJ: not on the flood risk listNN3 7BL: not on the flood risk listNN3 7BN: not on the flood risk listNN3 7BP: not on the flood risk listNN3 7BQ: not on the flood risk listNN3 7BS: not on the flood risk listNN3 7BT: not on the flood risk listNN3 7BU: not on the flood risk listNN3 7BW: not on the flood risk listNN3 7BX: not on the flood risk listNN3 7BY: not on the flood risk listNN3 7BZ: not on the flood risk listNN3 7DA: not on the flood risk listNN3 7DB: not on the flood risk listNN3 7DD: not on the flood risk listNN3 7DE: not on the flood risk listNN3 7DG: not on the flood risk listNN3 7DH: not on the flood risk listNN3 7DJ: not on the flood risk listNN3 7DL: not on the flood risk listNN3 7DN: not on the flood risk listNN3 7DP: not on the flood risk listNN3 7DQ: not on the flood risk listNN3 7DR: not on the flood risk listNN3 7DT: not on the flood risk listNN3 7DU: not on the flood risk listNN3 7DW: not on the flood risk listNN3 7DX: not on the flood risk listNN3 7DY: not on the flood risk listNN3 7DZ: not on the flood risk listNN3 7EA: not on the flood risk listNN3 7EE: not on the flood risk listNN3 7EF: not on the flood risk listNN3 7EQ: not on the flood risk listNN3 7EY: not on the flood risk listNN3 7FH: not on the flood risk listNN3 7FZ: not on the flood risk listNN3 7GH: not on the flood risk listNN3 7HE: not on the flood risk listNN3 7HH: not on the flood risk listNN3 7HJ: not on the flood risk listNN3 7HQ: not on the flood risk listNN3 7HS: not on the flood risk listNN3 7HX: not on the flood risk listNN3 7JB: not on the flood risk listNN3 7LB: not on the flood risk listNN3 7LE: not on the flood risk listNN3 7LG: not on the flood risk listNN3 7LH: not on the flood risk listNN3 7LJ: not on the flood risk listNN3 7LQ: not on the flood risk listNN3 7NW: not on the flood risk listNN3 7QA: not on the flood risk listNN3 7QB: not on the flood risk listNN3 7QE: not on the flood risk listNN3 7QG: not on the flood risk listNN3 7QH: not on the flood risk listNN3 7QJ: not on the flood risk listNN3 7QL: not on the flood risk listNN3 7QP: not on the flood risk listNN3 7QR: not on the flood risk listNN3 7QS: not on the flood risk listNN3 7QT: not on the flood risk listNN3 7QW: not on the flood risk listNN3 7QX: not on the flood risk listNN3 7QY: not on the flood risk listNN3 7QZ: not on the flood risk listNN3 7RA: not on the flood risk listNN3 7RB: not on the flood risk listNN3 7RE: not on the flood risk listNN3 7RF: not on the flood risk listNN3 7RG: not on the flood risk listNN3 7RH: not on the flood risk listNN3 7RJ: not on the flood risk listNN3 7RL: not on the flood risk listNN3 7RN: not on the flood risk listNN3 7RP: not on the flood risk listNN3 7RR: not on the flood risk listNN3 7RS: not on the flood risk listNN3 7RU: not on the flood risk listNN3 7RW: not on the flood risk listNN3 7RX: not on the flood risk listNN3 7RY: not on the flood risk listNN3 7SB: not on the flood risk listNN3 7SD: not on the flood risk listNN3 7SE: not on the flood risk listNN3 7SF: not on the flood risk listNN3 7SG: not on the flood risk listNN3 7SH: not on the flood risk listNN3 7SJ: not on the flood risk listNN3 7SL: not on the flood risk listNN3 7SN: not on the flood risk listNN3 7SP: not on the flood risk listNN3 7SQ: not on the flood risk listNN3 7SR: not on the flood risk listNN3 7SS: not on the flood risk listNN3 7ST: not on the flood risk listNN3 7SU: not on the flood risk listNN3 7SW: not on the flood risk listNN3 7SX: not on the flood risk listNN3 7SY: not on the flood risk listNN3 7SZ: not on the flood risk listNN3 7TA: not on the flood risk listNN3 7TB: not on the flood risk listNN3 7TD: not on the flood risk listNN3 7TE: not on the flood risk listNN3 7TF: not on the flood risk listNN3 7TH: not on the flood risk listNN3 7TJ: not on the flood risk listNN3 7TL: not on the flood risk listNN3 7TN: not on the flood risk listNN3 7TP: not on the flood risk listNN3 7TQ: not on the flood risk listNN3 7TR: not on the flood risk listNN3 7TS: not on the flood risk listNN3 7TT: not on the flood risk listNN3 7TW: not on the flood risk listNN3 7TX: not on the flood risk listNN3 7TY: not on the flood risk listNN3 7TZ: not on the flood risk listNN3 7UA: not on the flood risk listNN3 7UB: not on the flood risk listNN3 7UD: not on the flood risk listNN3 7UE: not on the flood risk listNN3 7UG: not on the flood risk listNN3 7UH: not on the flood risk listNN3 7UJ: not on the flood risk listNN3 7UP: not on the flood risk listNN3 7UQ: not on the flood risk listNN3 7UR: not on the flood risk listNN3 7US: not on the flood risk listNN3 7UT: not on the flood risk listNN3 7UU: not on the flood risk listNN3 7UW: not on the flood risk listNN3 7UX: not on the flood risk listNN3 7UY: not on the flood risk listNN3 7UZ: not on the flood risk listNN3 7WA: not on the flood risk listNN3 7WB: not on the flood risk listNN3 7WF: not on the flood risk listNN3 7WR: not on the flood risk listNN3 7WU: not on the flood risk listNN3 7XB: not on the flood risk listNN3 7XD: not on the flood risk listNN3 7XE: not on the flood risk listNN3 7XF: not on the flood risk listNN3 8AA: not on the flood risk listNN3 8AB: not on the flood risk listNN3 8AD: not on the flood risk listNN3 8AE: not on the flood risk listNN3 8AF: not on the flood risk listNN3 8AG: not on the flood risk listNN3 8AJ: not on the flood risk listNN3 8AL: not on the flood risk listNN3 8AN: not on the flood risk listNN3 8AP: not on the flood risk listNN3 8AQ: not on the flood risk listNN3 8AR: not on the flood risk listNN3 8AS: not on the flood risk listNN3 8AT: not on the flood risk listNN3 8AU: not on the flood risk listNN3 8AW: not on the flood risk listNN3 8AZ: not on the flood risk listNN3 8BE: not on the flood risk listNN3 8BF: not on the flood risk listNN3 8BN: not on the flood risk listNN3 8BP: not on the flood risk listNN3 8BT: not on the flood risk listNN3 8BU: not on the flood risk listNN3 8BW: not on the flood risk listNN3 8BX: not on the flood risk listNN3 8BY: not on the flood risk listNN3 8DA: not on the flood risk listNN3 8DB: not on the flood risk listNN3 8DD: not on the flood risk listNN3 8DE: not on the flood risk listNN3 8DF: not on the flood risk listNN3 8DG: not on the flood risk listNN3 8DH: not on the flood risk listNN3 8DJ: not on the flood risk listNN3 8DL: not on the flood risk listNN3 8DP: not on the flood risk listNN3 8DW: not on the flood risk listNN3 8EH: not on the flood risk listNN3 8EJ: not on the flood risk listNN3 8EL: not on the flood risk listNN3 8EN: not on the flood risk listNN3 8EP: not on the flood risk listNN3 8ER: not on the flood risk listNN3 8ES: not on the flood risk listNN3 8EY: not on the flood risk listNN3 8FD: not on the flood risk listNN3 8FZ: not on the flood risk listNN3 8HA: not on the flood risk listNN3 8HB: not on the flood risk listNN3 8HD: not on the flood risk listNN3 8HE: not on the flood risk listNN3 8HF: not on the flood risk listNN3 8HG: not on the flood risk listNN3 8HH: not on the flood risk listNN3 8HJ: not on the flood risk listNN3 8HL: not on the flood risk listNN3 8HN: not on the flood risk listNN3 8HQ: not on the flood risk listNN3 8HR: not on the flood risk listNN3 8HS: not on the flood risk listNN3 8HT: not on the flood risk listNN3 8HU: not on the flood risk listNN3 8HW: not on the flood risk listNN3 8HX: not on the flood risk listNN3 8HY: not on the flood risk listNN3 8HZ: not on the flood risk listNN3 8JA: not on the flood risk listNN3 8JB: not on the flood risk listNN3 8JD: not on the flood risk listNN3 8JE: not on the flood risk listNN3 8JF: not on the flood risk listNN3 8JG: not on the flood risk listNN3 8JH: not on the flood risk listNN3 8JJ: not on the flood risk listNN3 8JL: not on the flood risk listNN3 8JN: not on the flood risk listNN3 8JP: not on the flood risk listNN3 8JR: not on the flood risk listNN3 8JS: not on the flood risk listNN3 8JT: not on the flood risk listNN3 8JW: not on the flood risk listNN3 8JY: not on the flood risk listNN3 8LA: not on the flood risk listNN3 8LB: not on the flood risk listNN3 8LD: not on the flood risk listNN3 8LE: not on the flood risk listNN3 8LF: not on the flood risk listNN3 8LG: not on the flood risk listNN3 8LH: not on the flood risk listNN3 8LJ: not on the flood risk listNN3 8LL: not on the flood risk listNN3 8LN: not on the flood risk listNN3 8LP: not on the flood risk listNN3 8LQ: not on the flood risk listNN3 8LR: not on the flood risk listNN3 8LS: not on the flood risk listNN3 8LT: not on the flood risk listNN3 8LU: not on the flood risk listNN3 8LW: not on the flood risk listNN3 8LX: not on the flood risk listNN3 8LY: not on the flood risk listNN3 8LZ: not on the flood risk listNN3 8NA: not on the flood risk listNN3 8NB: not on the flood risk listNN3 8ND: not on the flood risk listNN3 8NE: not on the flood risk listNN3 8NF: not on the flood risk listNN3 8NG: not on the flood risk listNN3 8NH: not on the flood risk listNN3 8NJ: not on the flood risk listNN3 8NN: not on the flood risk listNN3 8NP: not on the flood risk listNN3 8NR: not on the flood risk listNN3 8NW: not on the flood risk listNN3 8NX: not on the flood risk listNN3 8NZ: not on the flood risk listNN3 8PA: not on the flood risk listNN3 8PB: not on the flood risk listNN3 8PE: not on the flood risk listNN3 8PF: not on the flood risk listNN3 8PG: not on the flood risk listNN3 8PH: not on the flood risk listNN3 8PL: not on the flood risk listNN3 8PN: not on the flood risk listNN3 8PP: not on the flood risk listNN3 8PS: not on the flood risk listNN3 8PT: not on the flood risk listNN3 8PU: not on the flood risk listNN3 8PW: not on the flood risk listNN3 8PX: not on the flood risk listNN3 8PY: not on the flood risk listNN3 8PZ: not on the flood risk listNN3 8QA: not on the flood risk listNN3 8QB: not on the flood risk listNN3 8QD: not on the flood risk listNN3 8QE: not on the flood risk listNN3 8QF: not on the flood risk listNN3 8QG: not on the flood risk listNN3 8QJ: not on the flood risk listNN3 8QL: not on the flood risk listNN3 8QN: not on the flood risk listNN3 8QP: not on the flood risk listNN3 8QQ: not on the flood risk listNN3 8QR: not on the flood risk listNN3 8QS: not on the flood risk listNN3 8QT: not on the flood risk listNN3 8QU: not on the flood risk listNN3 8QW: not on the flood risk listNN3 8QY: not on the flood risk listNN3 8RD: not on the flood risk listNN3 8RE: not on the flood risk listNN3 8RF: not on the flood risk listNN3 8RG: not on the flood risk listNN3 8RH: not on the flood risk listNN3 8RJ: not on the flood risk listNN3 8RN: not on the flood risk listNN3 8RQ: not on the flood risk listNN3 8RS: not on the flood risk listNN3 8RT: not on the flood risk listNN3 8RU: not on the flood risk listNN3 8SA: not on the flood risk listNN3 8SB: not on the flood risk listNN3 8SF: not on the flood risk listNN3 8SG: not on the flood risk listNN3 8SH: not on the flood risk listNN3 8SS: not on the flood risk listNN3 8ST: not on the flood risk listNN3 8TA: not on the flood risk listNN3 8TB: not on the flood risk listNN3 8TD: not on the flood risk listNN3 8TE: not on the flood risk listNN3 8TJ: not on the flood risk listNN3 8TP: not on the flood risk listNN3 8TR: not on the flood risk listNN3 8TS: not on the flood risk listNN3 8TT: not on the flood risk listNN3 8TW: not on the flood risk listNN3 8TY: not on the flood risk listNN3 8TZ: not on the flood risk listNN3 8UF: not on the flood risk listNN3 8UG: not on the flood risk listNN3 8UN: not on the flood risk listNN3 8UP: not on the flood risk listNN3 8UQ: not on the flood risk listNN3 8UR: not on the flood risk listNN3 8US: not on the flood risk listNN3 8UU: not on the flood risk listNN3 8UW: not on the flood risk listNN3 8UX: not on the flood risk listNN3 8XA: not on the flood risk listNN3 8XB: not on the flood risk listNN3 8XJ: not on the flood risk listNN3 8XN: not on the flood risk listNN3 8XP: not on the flood risk listNN3 8XR: not on the flood risk listNN3 8XS: not on the flood risk listNN3 8XT: not on the flood risk listNN3 8XU: not on the flood risk listNN3 8XX: not on the flood risk listNN3 8XY: not on the flood risk listNN3 8XZ: not on the flood risk listNN3 8YA: not on the flood risk listNN3 8YB: not on the flood risk listNN3 8YD: not on the flood risk listNN3 8YE: not on the flood risk listNN3 8YF: not on the flood risk listNN3 8YG: not on the flood risk listNN3 8YH: not on the flood risk listNN3 8YJ: not on the flood risk listNN3 8YL: not on the flood risk listNN3 8YP: not on the flood risk listNN3 8YR: not on the flood risk listNN3 8YU: not on the flood risk listNN3 8YY: not on the flood risk listNN3 9AB: not on the flood risk listNN3 9AD: not on the flood risk listNN3 9AE: not on the flood risk listNN3 9AG: not on the flood risk listNN3 9AH: not on the flood risk listNN3 9AJ: not on the flood risk listNN3 9AN: not on the flood risk listNN3 9AP: not on the flood risk listNN3 9AQ: not on the flood risk listNN3 9AR: not on the flood risk listNN3 9AS: not on the flood risk listNN3 9AT: not on the flood risk listNN3 9AU: not on the flood risk listNN3 9AW: not on the flood risk listNN3 9AX: not on the flood risk listNN3 9AY: not on the flood risk listNN3 9AZ: not on the flood risk listNN3 9BA: not on the flood risk listNN3 9BB: not on the flood risk listNN3 9BD: not on the flood risk listNN3 9BG: not on the flood risk listNN3 9BH: not on the flood risk listNN3 9BJ: not on the flood risk listNN3 9BL: not on the flood risk listNN3 9BN: not on the flood risk listNN3 9BP: not on the flood risk listNN3 9BQ: not on the flood risk listNN3 9BS: not on the flood risk listNN3 9BT: not on the flood risk listNN3 9BU: not on the flood risk listNN3 9BW: not on the flood risk listNN3 9BY: not on the flood risk listNN3 9DB: not on the flood risk listNN3 9DD: not on the flood risk listNN3 9DE: not on the flood risk listNN3 9DF: not on the flood risk listNN3 9DG: not on the flood risk listNN3 9DH: not on the flood risk listNN3 9DJ: not on the flood risk listNN3 9DL: not on the flood risk listNN3 9DN: not on the flood risk listNN3 9DP: not on the flood risk listNN3 9DQ: not on the flood risk listNN3 9DR: not on the flood risk listNN3 9DS: not on the flood risk listNN3 9DT: not on the flood risk listNN3 9DU: not on the flood risk listNN3 9DW: not on the flood risk listNN3 9DX: not on the flood risk listNN3 9DY: not on the flood risk listNN3 9EA: not on the flood risk listNN3 9ED: not on the flood risk listNN3 9EE: not on the flood risk listNN3 9EF: not on the flood risk listNN3 9EG: not on the flood risk listNN3 9EH: not on the flood risk listNN3 9EJ: not on the flood risk listNN3 9EN: not on the flood risk listNN3 9EP: not on the flood risk listNN3 9EQ: not on the flood risk listNN3 9ET: not on the flood risk listNN3 9FA: not on the flood risk listNN3 9FD: not on the flood risk listNN3 9GB: not on the flood risk listNN3 9GD: not on the flood risk listNN3 9GE: not on the flood risk listNN3 9GF: not on the flood risk listNN3 9GG: not on the flood risk listNN3 9GH: not on the flood risk listNN3 9HA: not on the flood risk listNN3 9HD: not on the flood risk listNN3 9HE: not on the flood risk listNN3 9HF: not on the flood risk listNN3 9HJ: not on the flood risk listNN3 9HL: not on the flood risk listNN3 9HN: not on the flood risk listNN3 9HP: not on the flood risk listNN3 9HR: not on the flood risk listNN3 9HT: not on the flood risk listNN3 9HY: not on the flood risk listNN3 9JN: not on the flood risk listNN3 9JP: not on the flood risk listNN3 9JQ: not on the flood risk listNN3 9NP: not on the flood risk listNN3 9NR: not on the flood risk listNN3 9NS: not on the flood risk listNN3 9NT: not on the flood risk listNN3 9NX: not on the flood risk listNN3 9PG: not on the flood risk listNN3 9PH: not on the flood risk listNN3 9QY: not on the flood risk listNN3 9SF: not on the flood risk listNN3 9SG: not on the flood risk listNN3 9SJ: not on the flood risk listNN3 9SL: not on the flood risk listNN3 9SN: not on the flood risk listNN3 9SP: not on the flood risk listNN3 9SR: not on the flood risk listNN3 9SS: not on the flood risk listNN3 9SU: not on the flood risk listNN3 9SW: not on the flood risk listNN3 9SX: not on the flood risk listNN3 9SY: not on the flood risk listNN3 9SZ: not on the flood risk listNN3 9TA: not on the flood risk listNN3 9TB: not on the flood risk listNN3 9TD: not on the flood risk listNN3 9TE: not on the flood risk listNN3 9TF: not on the flood risk listNN3 9TH: not on the flood risk listNN3 9TJ: not on the flood risk listNN3 9TL: not on the flood risk listNN3 9TP: not on the flood risk listNN3 9TQ: not on the flood risk listNN3 9TR: not on the flood risk listNN3 9TS: not on the flood risk listNN3 9TT: not on the flood risk listNN3 9TU: not on the flood risk listNN3 9TW: not on the flood risk listNN3 9TX: not on the flood risk listNN3 9TY: not on the flood risk listNN3 9UA: not on the flood risk listNN3 9UD: not on the flood risk listNN3 9UF: not on the flood risk listNN3 9UG: not on the flood risk listNN3 9UH: not on the flood risk listNN3 9UL: not on the flood risk listNN3 9UN: not on the flood risk listNN3 9UP: not on the flood risk listNN3 9UQ: not on the flood risk listNN3 9US: not on the flood risk listNN3 9UT: not on the flood risk listNN3 9UU: not on the flood risk listNN3 9UX: not on the flood risk listNN3 9UY: not on the flood risk listNN3 9UZ: not on the flood risk listNN3 9XA: not on the flood risk listNN3 9XB: not on the flood risk listNN3 9XD: not on the flood risk listNN3 9YW: not on the flood risk listNN3 3DH: very low flood risk onlyNN3 3EH: very low flood risk onlyNN3 3EJ: very low flood risk onlyNN3 3HD: very low flood risk onlyNN3 3HE: very low flood risk onlyNN3 3HF: very low flood risk onlyNN3 3HL: very low flood risk onlyNN3 3LF: very low flood risk onlyNN3 3QG: very low flood risk onlyNN3 3QH: very low flood risk onlyNN3 9AF: very low flood risk onlyNN3 9HU: very low flood risk onlyNN3 9HZ: very low flood risk onlyNN3 3QE: low flood risk at worstNN3 5HQ: low flood risk at worstNN3 7TU: low flood risk at worstNN3 8EZ: low flood risk at worstNN3 9BX: low flood risk at worstNN3 9GA: low flood risk at worstNN3 9TG: low flood risk at worstNN3 5DR: medium flood risk at worstNN3 7UF: medium flood risk at worstNN3 9AL: medium flood risk at worstNN3 9BZ: medium flood risk at worstNN3 3HJ: high flood riskNN3 7TG: high flood riskNN3 9DA: high flood riskNN3 9ER: high flood riskNN3 9EX: high flood riskNN3 9HG: high flood riskNN3 9HW: high flood riskNN3 9HX: high flood riskNN3 9UE: high flood risk NorthamptonMoulton Map of every postcode in NN3, by flood risk Of the 1,315 postcodes in NN3 that ONS places, 9 have a home or business at high risk, 4 are at medium risk at worst, 7 are at low risk at worst, 14 are at very low risk only and 1,281 are not on the Environment Agency's at-risk list. 5 postcodes lie beyond the edge and are listed under the map. Places named: Moulton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Moulton
  • A home or business at high risk: 9
  • At medium risk at worst: 4
  • At low risk at worst: 7
  • At very low risk only: 14
  • Not on the at-risk list: 1,281

Of the 1,315 postcodes in NN3 that ONS places, 9 have a home or business at high risk, 4 are at medium risk at worst, 7 are at low risk at worst, 14 are at very low risk only and 1,281 are not on the Environment Agency's at-risk list.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 52.2641, longitude -0.8423. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

NN3 9DA830 at high riskNN3 9HG113 at high riskNN3 9HX64 at high riskNN3 9HW38 at high riskNN3 7TG7 at high riskNN3 9EX6 at high riskNN3 3HJ3 at high riskNN3 9ER2 at high riskNN3 9UE1 at high risk

5 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

NN3 5LUNN3 7NWNN3 7QNNN3 7XANN3 9BZ

What broadband can you get in NN3?

Ofcom reports on 1,285 of the 1,315 postcodes in NN3. At 1,190 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit1,190 of 1,285
Postcodes where every home can get superfast1,267 of 1,285

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is NN3 at risk of flooding?

34 of the 1,315 postcodes in NN3 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 1,226 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 34 of 1,315 postcodes High: 1,064Medium: 162Low: 131Very low: 164

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in NN3?

Homes in NN3 sold for a typical £270,000 in the 12 months to August 2026, across 736 sales, no change on the 12 months before, HM Land Registry's figures show.

£270,000 typical price, the 12 months to August 2026
12 months to August 2025
£270,000
12 months to August 2026
£270,000

■ no change on the 12 months before

Detached£369,998 214 sales
Semi-detached£263,000 295 sales
Terraced£220,000 193 sales
Flat or maisonette£145,000 34 sales

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in NN3

Pick a sector, then a postcode. A sector is the district plus the next digit.

NN3 07 postcodesNN3 2180 postcodesNN3 3200 postcodesNN3 5134 postcodesNN3 6186 postcodesNN3 7200 postcodesNN3 8234 postcodesNN3 9174 postcodes
UK postcode format explained

Places in NN3

Towns and villages with postcodes in NN3, and how many each has here.

Northampton postcodes,1,168Moulton postcodes,141

Who covers NN3

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Northampton North694
  • Northampton South467
  • Daventry154

Police force areas

  • Northamptonshire1,315

Next to NN3

NN2 postcode district NN4 postcode district All NN districts Northampton postcodes

"Next to" is by number: the districts before and after NN3 in the NN area.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.