MK3 postcode district: Bletchley and around

MK3 is a postcode district in England, with 660 postcodes in use in 4 sectors. It has postcodes in Bletchley. It is split between 2 councils: Milton Keynes (630 postcodes) and Buckinghamshire (30).

Postcodes in use
660
Sectors
4
Councils
2 councils
Places
Bletchley

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

Every postcode in MK3, by flood risk

Map of every postcode in MK3, by flood risk Of the 660 postcodes in MK3 that ONS places, 4 are at medium risk at worst, 6 are at low risk at worst and 650 are not on the Environment Agency's at-risk list. Places named: Bletchley, Newton Longville. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A4146A421 MK3 4AA: not on the flood risk listMK3 4AD: not on the flood risk listMK3 4AE: not on the flood risk listMK3 4AG: not on the flood risk listMK3 4AH: not on the flood risk listMK3 4AJ: not on the flood risk listMK3 4AN: not on the flood risk listMK3 4AP: not on the flood risk listMK3 5AA: not on the flood risk listMK3 5AB: not on the flood risk listMK3 5AD: not on the flood risk listMK3 5AE: not on the flood risk listMK3 5AF: not on the flood risk listMK3 5AG: not on the flood risk listMK3 5AH: not on the flood risk listMK3 5AJ: not on the flood risk listMK3 5AL: not on the flood risk listMK3 5AN: not on the flood risk listMK3 5AP: not on the flood risk listMK3 5AQ: not on the flood risk listMK3 5AR: not on the flood risk listMK3 5AS: not on the flood risk listMK3 5AT: not on the flood risk listMK3 5AU: not on the flood risk listMK3 5AW: not on the flood risk listMK3 5AX: not on the flood risk listMK3 5AY: not on the flood risk listMK3 5AZ: not on the flood risk listMK3 5BB: not on the flood risk listMK3 5BD: not on the flood risk listMK3 5BE: not on the flood risk listMK3 5BG: not on the flood risk listMK3 5BH: not on the flood risk listMK3 5BJ: not on the flood risk listMK3 5BL: not on the flood risk listMK3 5BN: not on the flood risk listMK3 5BQ: not on the flood risk listMK3 5BS: not on the flood risk listMK3 5BT: not on the flood risk listMK3 5BW: not on the flood risk listMK3 5BY: not on the flood risk listMK3 5BZ: not on the flood risk listMK3 5DA: not on the flood risk listMK3 5DB: not on the flood risk listMK3 5DD: not on the flood risk listMK3 5DE: not on the flood risk listMK3 5DF: not on the flood risk listMK3 5DG: not on the flood risk listMK3 5DH: not on the flood risk listMK3 5DQ: not on the flood risk listMK3 5DR: not on the flood risk listMK3 5DS: not on the flood risk listMK3 5DT: not on the flood risk listMK3 5DU: not on the flood risk listMK3 5DX: not on the flood risk listMK3 5DY: not on the flood risk listMK3 5DZ: not on the flood risk listMK3 5EA: not on the flood risk listMK3 5EB: not on the flood risk listMK3 5ED: not on the flood risk listMK3 5EE: not on the flood risk listMK3 5EF: not on the flood risk listMK3 5EG: not on the flood risk listMK3 5EH: not on the flood risk listMK3 5EJ: not on the flood risk listMK3 5EL: not on the flood risk listMK3 5EN: not on the flood risk listMK3 5EP: not on the flood risk listMK3 5EQ: not on the flood risk listMK3 5ER: not on the flood risk listMK3 5ES: not on the flood risk listMK3 5ET: not on the flood risk listMK3 5EU: not on the flood risk listMK3 5EW: not on the flood risk listMK3 5EX: not on the flood risk listMK3 5EY: not on the flood risk listMK3 5FB: not on the flood risk listMK3 5FD: not on the flood risk listMK3 5FE: not on the flood risk listMK3 5FF: not on the flood risk listMK3 5FG: not on the flood risk listMK3 5FH: not on the flood risk listMK3 5FJ: not on the flood risk listMK3 5FN: not on the flood risk listMK3 5FR: not on the flood risk listMK3 5FS: not on the flood risk listMK3 5FU: not on the flood risk listMK3 5FX: not on the flood risk listMK3 5FY: not on the flood risk listMK3 5FZ: not on the flood risk listMK3 5GF: not on the flood risk listMK3 5GG: not on the flood risk listMK3 5GJ: not on the flood risk listMK3 5GN: not on the flood risk listMK3 5GP: not on the flood risk listMK3 5GQ: not on the flood risk listMK3 5GR: not on the flood risk listMK3 5GS: not on the flood risk listMK3 5GT: not on the flood risk listMK3 5GU: not on the flood risk listMK3 5GW: not on the flood risk listMK3 5GX: not on the flood risk listMK3 5GY: not on the flood risk listMK3 5GZ: not on the flood risk listMK3 5HA: not on the flood risk listMK3 5HB: not on the flood risk listMK3 5HD: not on the flood risk listMK3 5HE: not on the flood risk listMK3 5HF: not on the flood risk listMK3 5HG: not on the flood risk listMK3 5HH: not on the flood risk listMK3 5HJ: not on the flood risk listMK3 5HL: not on the flood risk listMK3 5HN: not on the flood risk listMK3 5HP: not on the flood risk listMK3 5HQ: not on the flood risk listMK3 5HR: not on the flood risk listMK3 5HS: not on the flood risk listMK3 5HT: not on the flood risk listMK3 5HW: not on the flood risk listMK3 5HX: not on the flood risk listMK3 5HY: not on the flood risk listMK3 5HZ: not on the flood risk listMK3 5JA: not on the flood risk listMK3 5JB: not on the flood risk listMK3 5JD: not on the flood risk listMK3 5JE: not on the flood risk listMK3 5JF: not on the flood risk listMK3 5JG: not on the flood risk listMK3 5JH: not on the flood risk listMK3 5JJ: not on the flood risk listMK3 5JQ: not on the flood risk listMK3 5JU: not on the flood risk listMK3 5JY: not on the flood risk listMK3 5JZ: not on the flood risk listMK3 5LA: not on the flood risk listMK3 5LB: not on the flood risk listMK3 5LG: not on the flood risk listMK3 5LH: not on the flood risk listMK3 5LJ: not on the flood risk listMK3 5LL: not on the flood risk listMK3 5LP: not on the flood risk listMK3 5LR: not on the flood risk listMK3 5LS: not on the flood risk listMK3 5LT: not on the flood risk listMK3 5LU: not on the flood risk listMK3 5LY: not on the flood risk listMK3 5LZ: not on the flood risk listMK3 5NA: not on the flood risk listMK3 5NB: not on the flood risk listMK3 5ND: not on the flood risk listMK3 5NE: not on the flood risk listMK3 5NF: not on the flood risk listMK3 5NG: not on the flood risk listMK3 5NH: not on the flood risk listMK3 5NJ: not on the flood risk listMK3 5NL: not on the flood risk listMK3 5NP: not on the flood risk listMK3 5NQ: not on the flood risk listMK3 5NR: not on the flood risk listMK3 5NS: not on the flood risk listMK3 5NT: not on the flood risk listMK3 5NU: not on the flood risk listMK3 5NX: not on the flood risk listMK3 5NY: not on the flood risk listMK3 5NZ: not on the flood risk listMK3 5PD: not on the flood risk listMK3 5PL: not on the flood risk listMK3 5PN: not on the flood risk listMK3 5PR: not on the flood risk listMK3 5PT: not on the flood risk listMK3 5PU: not on the flood risk listMK3 5PW: not on the flood risk listMK3 5PX: not on the flood risk listMK3 5PY: not on the flood risk listMK3 5PZ: not on the flood risk listMK3 5QA: not on the flood risk listMK3 5QB: not on the flood risk listMK3 5QD: not on the flood risk listMK3 5QE: not on the flood risk listMK3 5QF: not on the flood risk listMK3 5QG: not on the flood risk listMK3 5QH: not on the flood risk listMK3 5QJ: not on the flood risk listMK3 5QN: not on the flood risk listMK3 5QP: not on the flood risk listMK3 5QR: not on the flood risk listMK3 5QS: not on the flood risk listMK3 5QT: not on the flood risk listMK3 5QU: not on the flood risk listMK3 5QW: not on the flood risk listMK3 5QX: not on the flood risk listMK3 5QY: not on the flood risk listMK3 5RA: not on the flood risk listMK3 5RB: not on the flood risk listMK3 5RD: not on the flood risk listMK3 5RE: not on the flood risk listMK3 5RF: not on the flood risk listMK3 5RG: not on the flood risk listMK3 5RH: not on the flood risk listMK3 5RJ: not on the flood risk listMK3 5RL: not on the flood risk listMK3 5RN: not on the flood risk listMK3 5RP: not on the flood risk listMK3 5RQ: not on the flood risk listMK3 5RR: not on the flood risk listMK3 5RS: not on the flood risk listMK3 5RT: not on the flood risk listMK3 5RU: not on the flood risk listMK3 5RX: not on the flood risk listMK3 5RY: not on the flood risk listMK3 5RZ: not on the flood risk listMK3 5SB: not on the flood risk listMK3 5SD: not on the flood risk listMK3 5SF: not on the flood risk listMK3 5SG: not on the flood risk listMK3 5SH: not on the flood risk listMK3 5SJ: not on the flood risk listMK3 5SL: not on the flood risk listMK3 5SN: not on the flood risk listMK3 5SQ: not on the flood risk listMK3 5SR: not on the flood risk listMK3 5SS: not on the flood risk listMK3 5ST: not on the flood risk listMK3 5SW: not on the flood risk listMK3 5SX: not on the flood risk listMK3 5SY: not on the flood risk listMK3 5SZ: not on the flood risk listMK3 5ZF: not on the flood risk listMK3 6AA: not on the flood risk listMK3 6AB: not on the flood risk listMK3 6AD: not on the flood risk listMK3 6AE: not on the flood risk listMK3 6AF: not on the flood risk listMK3 6AG: not on the flood risk listMK3 6AH: not on the flood risk listMK3 6AJ: not on the flood risk listMK3 6AL: not on the flood risk listMK3 6AN: not on the flood risk listMK3 6AP: not on the flood risk listMK3 6AQ: not on the flood risk listMK3 6AR: not on the flood risk listMK3 6AS: not on the flood risk listMK3 6AT: not on the flood risk listMK3 6AW: not on the flood risk listMK3 6AX: not on the flood risk listMK3 6AY: not on the flood risk listMK3 6AZ: not on the flood risk listMK3 6BB: not on the flood risk listMK3 6BE: not on the flood risk listMK3 6BG: not on the flood risk listMK3 6BH: not on the flood risk listMK3 6BJ: not on the flood risk listMK3 6BL: not on the flood risk listMK3 6BN: not on the flood risk listMK3 6BP: not on the flood risk listMK3 6BS: not on the flood risk listMK3 6BT: not on the flood risk listMK3 6BU: not on the flood risk listMK3 6BX: not on the flood risk listMK3 6BY: not on the flood risk listMK3 6BZ: not on the flood risk listMK3 6DA: not on the flood risk listMK3 6DB: not on the flood risk listMK3 6DD: not on the flood risk listMK3 6DE: not on the flood risk listMK3 6DF: not on the flood risk listMK3 6DG: not on the flood risk listMK3 6DH: not on the flood risk listMK3 6DJ: not on the flood risk listMK3 6DL: not on the flood risk listMK3 6DN: not on the flood risk listMK3 6DP: not on the flood risk listMK3 6DQ: not on the flood risk listMK3 6DR: not on the flood risk listMK3 6DS: not on the flood risk listMK3 6DU: not on the flood risk listMK3 6DZ: not on the flood risk listMK3 6EB: not on the flood risk listMK3 6EJ: not on the flood risk listMK3 6EL: not on the flood risk listMK3 6EN: not on the flood risk listMK3 6EP: not on the flood risk listMK3 6EQ: not on the flood risk listMK3 6ER: not on the flood risk listMK3 6EW: not on the flood risk listMK3 6EZ: not on the flood risk listMK3 6FA: not on the flood risk listMK3 6FB: not on the flood risk listMK3 6FD: not on the flood risk listMK3 6FE: not on the flood risk listMK3 6FG: not on the flood risk listMK3 6FH: not on the flood risk listMK3 6FJ: not on the flood risk listMK3 6FL: not on the flood risk listMK3 6FN: not on the flood risk listMK3 6FP: not on the flood risk listMK3 6FQ: not on the flood risk listMK3 6GT: not on the flood risk listMK3 6GU: not on the flood risk listMK3 6GW: not on the flood risk listMK3 6GX: not on the flood risk listMK3 6GY: not on the flood risk listMK3 6GZ: not on the flood risk listMK3 6HA: not on the flood risk listMK3 6HB: not on the flood risk listMK3 6HD: not on the flood risk listMK3 6HE: not on the flood risk listMK3 6HF: not on the flood risk listMK3 6HG: not on the flood risk listMK3 6HP: not on the flood risk listMK3 6HR: not on the flood risk listMK3 6HS: not on the flood risk listMK3 6HT: not on the flood risk listMK3 6HU: not on the flood risk listMK3 6HX: not on the flood risk listMK3 6HY: not on the flood risk listMK3 6HZ: not on the flood risk listMK3 6JA: not on the flood risk listMK3 6JE: not on the flood risk listMK3 6JF: not on the flood risk listMK3 6JG: not on the flood risk listMK3 6JH: not on the flood risk listMK3 6JJ: not on the flood risk listMK3 6JL: not on the flood risk listMK3 6JN: not on the flood risk listMK3 6JP: not on the flood risk listMK3 6JQ: not on the flood risk listMK3 6JS: not on the flood risk listMK3 6JT: not on the flood risk listMK3 6JU: not on the flood risk listMK3 6JW: not on the flood risk listMK3 6JX: not on the flood risk listMK3 6JY: not on the flood risk listMK3 6LG: not on the flood risk listMK3 6LH: not on the flood risk listMK3 6LJ: not on the flood risk listMK3 6LL: not on the flood risk listMK3 6LN: not on the flood risk listMK3 6LP: not on the flood risk listMK3 6LQ: not on the flood risk listMK3 6LR: not on the flood risk listMK3 6LS: not on the flood risk listMK3 6LU: not on the flood risk listMK3 6LW: not on the flood risk listMK3 6LX: not on the flood risk listMK3 6LY: not on the flood risk listMK3 6LZ: not on the flood risk listMK3 6NA: not on the flood risk listMK3 6NB: not on the flood risk listMK3 6ND: not on the flood risk listMK3 6NE: not on the flood risk listMK3 6NG: not on the flood risk listMK3 6NH: not on the flood risk listMK3 6NJ: not on the flood risk listMK3 6NL: not on the flood risk listMK3 6NN: not on the flood risk listMK3 6NQ: not on the flood risk listMK3 6NR: not on the flood risk listMK3 6NS: not on the flood risk listMK3 6NZ: not on the flood risk listMK3 6PA: not on the flood risk listMK3 6PB: not on the flood risk listMK3 6PH: not on the flood risk listMK3 6PJ: not on the flood risk listMK3 6PL: not on the flood risk listMK3 6PN: not on the flood risk listMK3 6PP: not on the flood risk listMK3 6PQ: not on the flood risk listMK3 6PS: not on the flood risk listMK3 6PT: not on the flood risk listMK3 6PU: not on the flood risk listMK3 6PW: not on the flood risk listMK3 6PX: not on the flood risk listMK3 6PY: not on the flood risk listMK3 6PZ: not on the flood risk listMK3 6QA: not on the flood risk listMK3 6QB: not on the flood risk listMK3 6QD: not on the flood risk listMK3 6RT: not on the flood risk listMK3 7AA: not on the flood risk listMK3 7AB: not on the flood risk listMK3 7AD: not on the flood risk listMK3 7AE: not on the flood risk listMK3 7AF: not on the flood risk listMK3 7AG: not on the flood risk listMK3 7AJ: not on the flood risk listMK3 7AL: not on the flood risk listMK3 7AN: not on the flood risk listMK3 7AP: not on the flood risk listMK3 7AQ: not on the flood risk listMK3 7AR: not on the flood risk listMK3 7AS: not on the flood risk listMK3 7AT: not on the flood risk listMK3 7AU: not on the flood risk listMK3 7AW: not on the flood risk listMK3 7AX: not on the flood risk listMK3 7AY: not on the flood risk listMK3 7AZ: not on the flood risk listMK3 7BA: not on the flood risk listMK3 7BB: not on the flood risk listMK3 7BD: not on the flood risk listMK3 7BE: not on the flood risk listMK3 7BG: not on the flood risk listMK3 7BH: not on the flood risk listMK3 7BJ: not on the flood risk listMK3 7BL: not on the flood risk listMK3 7BP: not on the flood risk listMK3 7BQ: not on the flood risk listMK3 7BS: not on the flood risk listMK3 7BT: not on the flood risk listMK3 7BU: not on the flood risk listMK3 7BW: not on the flood risk listMK3 7BX: not on the flood risk listMK3 7BY: not on the flood risk listMK3 7DA: not on the flood risk listMK3 7DB: not on the flood risk listMK3 7DE: not on the flood risk listMK3 7DF: not on the flood risk listMK3 7DG: not on the flood risk listMK3 7DH: not on the flood risk listMK3 7DL: not on the flood risk listMK3 7DN: not on the flood risk listMK3 7DP: not on the flood risk listMK3 7DQ: not on the flood risk listMK3 7DS: not on the flood risk listMK3 7DT: not on the flood risk listMK3 7DU: not on the flood risk listMK3 7DW: not on the flood risk listMK3 7DX: not on the flood risk listMK3 7DY: not on the flood risk listMK3 7DZ: not on the flood risk listMK3 7EB: not on the flood risk listMK3 7ED: not on the flood risk listMK3 7EG: not on the flood risk listMK3 7EJ: not on the flood risk listMK3 7EL: not on the flood risk listMK3 7EN: not on the flood risk listMK3 7EP: not on the flood risk listMK3 7EQ: not on the flood risk listMK3 7ES: not on the flood risk listMK3 7ET: not on the flood risk listMK3 7EU: not on the flood risk listMK3 7EX: not on the flood risk listMK3 7EY: not on the flood risk listMK3 7EZ: not on the flood risk listMK3 7FB: not on the flood risk listMK3 7FD: not on the flood risk listMK3 7FE: not on the flood risk listMK3 7GB: not on the flood risk listMK3 7HA: not on the flood risk listMK3 7HB: not on the flood risk listMK3 7HD: not on the flood risk listMK3 7HE: not on the flood risk listMK3 7HF: not on the flood risk listMK3 7HG: not on the flood risk listMK3 7HH: not on the flood risk listMK3 7HJ: not on the flood risk listMK3 7HL: not on the flood risk listMK3 7HN: not on the flood risk listMK3 7HQ: not on the flood risk listMK3 7HR: not on the flood risk listMK3 7HS: not on the flood risk listMK3 7HT: not on the flood risk listMK3 7HU: not on the flood risk listMK3 7HX: not on the flood risk listMK3 7HY: not on the flood risk listMK3 7HZ: not on the flood risk listMK3 7JA: not on the flood risk listMK3 7JD: not on the flood risk listMK3 7JE: not on the flood risk listMK3 7JF: not on the flood risk listMK3 7JH: not on the flood risk listMK3 7JJ: not on the flood risk listMK3 7JN: not on the flood risk listMK3 7JP: not on the flood risk listMK3 7JS: not on the flood risk listMK3 7JT: not on the flood risk listMK3 7JU: not on the flood risk listMK3 7JX: not on the flood risk listMK3 7JZ: not on the flood risk listMK3 7LB: not on the flood risk listMK3 7LD: not on the flood risk listMK3 7LL: not on the flood risk listMK3 7LN: not on the flood risk listMK3 7LR: not on the flood risk listMK3 7LS: not on the flood risk listMK3 7LT: not on the flood risk listMK3 7LU: not on the flood risk listMK3 7LW: not on the flood risk listMK3 7LX: not on the flood risk listMK3 7LY: not on the flood risk listMK3 7NA: not on the flood risk listMK3 7NB: not on the flood risk listMK3 7ND: not on the flood risk listMK3 7NE: not on the flood risk listMK3 7NF: not on the flood risk listMK3 7NG: not on the flood risk listMK3 7NH: not on the flood risk listMK3 7NJ: not on the flood risk listMK3 7NL: not on the flood risk listMK3 7NP: not on the flood risk listMK3 7NR: not on the flood risk listMK3 7NS: not on the flood risk listMK3 7NT: not on the flood risk listMK3 7NU: not on the flood risk listMK3 7NW: not on the flood risk listMK3 7NX: not on the flood risk listMK3 7NY: not on the flood risk listMK3 7NZ: not on the flood risk listMK3 7PA: not on the flood risk listMK3 7PB: not on the flood risk listMK3 7PD: not on the flood risk listMK3 7PE: not on the flood risk listMK3 7PF: not on the flood risk listMK3 7PH: not on the flood risk listMK3 7PJ: not on the flood risk listMK3 7PL: not on the flood risk listMK3 7PN: not on the flood risk listMK3 7PP: not on the flood risk listMK3 7PQ: not on the flood risk listMK3 7PR: not on the flood risk listMK3 7PS: not on the flood risk listMK3 7PT: not on the flood risk listMK3 7PU: not on the flood risk listMK3 7PW: not on the flood risk listMK3 7PX: not on the flood risk listMK3 7PY: not on the flood risk listMK3 7PZ: not on the flood risk listMK3 7QA: not on the flood risk listMK3 7QB: not on the flood risk listMK3 7QD: not on the flood risk listMK3 7QE: not on the flood risk listMK3 7QF: not on the flood risk listMK3 7QG: not on the flood risk listMK3 7QH: not on the flood risk listMK3 7QJ: not on the flood risk listMK3 7QL: not on the flood risk listMK3 7QN: not on the flood risk listMK3 7QP: not on the flood risk listMK3 7QQ: not on the flood risk listMK3 7QR: not on the flood risk listMK3 7QS: not on the flood risk listMK3 7QT: not on the flood risk listMK3 7QU: not on the flood risk listMK3 7RA: not on the flood risk listMK3 7RB: not on the flood risk listMK3 7RD: not on the flood risk listMK3 7RE: not on the flood risk listMK3 7RF: not on the flood risk listMK3 7RG: not on the flood risk listMK3 7RH: not on the flood risk listMK3 7RJ: not on the flood risk listMK3 7RL: not on the flood risk listMK3 7RN: not on the flood risk listMK3 7RP: not on the flood risk listMK3 7RQ: not on the flood risk listMK3 7RR: not on the flood risk listMK3 7RS: not on the flood risk listMK3 7RT: not on the flood risk listMK3 7RU: not on the flood risk listMK3 7RW: not on the flood risk listMK3 7RX: not on the flood risk listMK3 7RY: not on the flood risk listMK3 7SA: not on the flood risk listMK3 7SB: not on the flood risk listMK3 7SD: not on the flood risk listMK3 7SE: not on the flood risk listMK3 7SH: not on the flood risk listMK3 7SJ: not on the flood risk listMK3 7SL: not on the flood risk listMK3 7SN: not on the flood risk listMK3 7SP: not on the flood risk listMK3 7SR: not on the flood risk listMK3 7SS: not on the flood risk listMK3 7ST: not on the flood risk listMK3 7SU: not on the flood risk listMK3 7SW: not on the flood risk listMK3 7SX: not on the flood risk listMK3 7SY: not on the flood risk listMK3 7TA: not on the flood risk listMK3 7TB: not on the flood risk listMK3 7TD: not on the flood risk listMK3 7TH: not on the flood risk listMK3 7TJ: not on the flood risk listMK3 7TL: not on the flood risk listMK3 7TN: not on the flood risk listMK3 7TP: not on the flood risk listMK3 7TR: not on the flood risk listMK3 7TS: not on the flood risk listMK3 7TT: not on the flood risk listMK3 7TU: not on the flood risk listMK3 7TW: not on the flood risk listMK3 7UA: not on the flood risk listMK3 7UB: not on the flood risk listMK3 7UD: not on the flood risk listMK3 7UE: not on the flood risk listMK3 7UF: not on the flood risk listMK3 7UH: not on the flood risk listMK3 7UJ: not on the flood risk listMK3 7UL: not on the flood risk listMK3 7UN: not on the flood risk listMK3 7UP: not on the flood risk listMK3 7UQ: not on the flood risk listMK3 7UW: not on the flood risk listMK3 7WA: not on the flood risk listMK3 7WB: not on the flood risk listMK3 7WD: not on the flood risk listMK3 7WE: not on the flood risk listMK3 7WF: not on the flood risk listMK3 7WG: not on the flood risk listMK3 7WH: not on the flood risk listMK3 7WJ: not on the flood risk listMK3 7WL: not on the flood risk listMK3 7WN: not on the flood risk listMK3 5BX: low flood risk at worstMK3 5FQ: low flood risk at worstMK3 5GB: low flood risk at worstMK3 5GD: low flood risk at worstMK3 5GH: low flood risk at worstMK3 5GL: low flood risk at worstMK3 5FP: medium flood risk at worstMK3 5FT: medium flood risk at worstMK3 5FW: medium flood risk at worst BletchleyNewton Longville Map of every postcode in MK3, by flood risk Of the 660 postcodes in MK3 that ONS places, 4 are at medium risk at worst, 6 are at low risk at worst and 650 are not on the Environment Agency's at-risk list. Places named: Bletchley, Newton Longville. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. BletchleyNewton Longville
  • A home or business at high risk: 0
  • At medium risk at worst: 4
  • At low risk at worst: 6
  • At very low risk only: 0
  • Not on the at-risk list: 650

Of the 660 postcodes in MK3 that ONS places, 4 are at medium risk at worst, 6 are at low risk at worst and 650 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 51.9931, longitude -0.7522. 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 medium risk at worst

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

MK3 5FP12 at medium riskMK3 5GA9 at medium riskMK3 5FT5 at medium riskMK3 5FW3 at medium risk

What broadband can you get in MK3?

Ofcom reports on 647 of the 660 postcodes in MK3. At 614 of them every home and business can get gigabit broadband, and at 2 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit614 of 647
Postcodes where every home can get superfast636 of 647
Postcodes where some cannot get decent broadband2 of 647

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 MK3 at risk of flooding?

10 of the 660 postcodes in MK3 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 29 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 10 of 660 postcodes Medium: 29Low: 22

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 MK3?

Homes in MK3 sold for a typical £347,000 in the 12 months to August 2026, across 308 sales, up 8.4% on the 12 months before, HM Land Registry's figures show.

£347,000 typical price, the 12 months to August 2026
£320,000 12 months to August 2025
▲ up 8.4% on the 12 months before
  • Detached £450,000 79 sales
  • Semi-detached £340,000 127 sales
  • Terraced £300,000 64 sales
  • Flat or maisonette £187,500 38 sales

Each bar is that kind's typical price, against the most expensive kind here.

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 MK3

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

MK3 49 postcodesMK3 5244 postcodesMK3 6159 postcodesMK3 7248 postcodes
UK postcode format explained

Places in MK3

Towns and villages with postcodes in MK3, and how many each has here.

Bletchley postcodes,647

Who covers MK3

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

  • Buckingham and Bletchley660

Police force areas

  • Thames Valley660

Next to MK3

MK2 postcode district MK4 postcode district All MK districts Bletchley postcodes

"Next to" is by number: the districts before and after MK3 in the MK area.

Check a postcode

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