MK4 postcode district: Milton Keynes and around

MK4 is a postcode district in England, with 628 postcodes in use in 4 sectors. It has postcodes in Milton Keynes and Bletchley. Its council is Milton Keynes.

Postcodes in use
628
Sectors
4
Council
Milton Keynes
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 MK4, by flood risk

Map of every postcode in MK4, by flood risk Of the 628 postcodes in MK4 that ONS places, 1 have a home or business at high risk, 3 are at medium risk at worst, 1 are at low risk at worst and 623 are not on the Environment Agency's at-risk list. Places named: Bletchley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A5 MK4 1AD: not on the flood risk listMK4 1AE: not on the flood risk listMK4 1AF: not on the flood risk listMK4 1AG: not on the flood risk listMK4 1AH: not on the flood risk listMK4 1AJ: not on the flood risk listMK4 1AL: not on the flood risk listMK4 1AN: not on the flood risk listMK4 1AP: not on the flood risk listMK4 1AQ: not on the flood risk listMK4 1AR: not on the flood risk listMK4 1AS: not on the flood risk listMK4 1AT: not on the flood risk listMK4 1AU: not on the flood risk listMK4 1AW: not on the flood risk listMK4 1AX: not on the flood risk listMK4 1AY: not on the flood risk listMK4 1AZ: not on the flood risk listMK4 1BA: not on the flood risk listMK4 1BB: not on the flood risk listMK4 1BD: not on the flood risk listMK4 1BE: not on the flood risk listMK4 1BG: not on the flood risk listMK4 1BH: not on the flood risk listMK4 1BJ: not on the flood risk listMK4 1BL: not on the flood risk listMK4 1BN: not on the flood risk listMK4 1BP: not on the flood risk listMK4 1BS: not on the flood risk listMK4 1BT: not on the flood risk listMK4 1BU: not on the flood risk listMK4 1BW: not on the flood risk listMK4 1BX: not on the flood risk listMK4 1BZ: not on the flood risk listMK4 1DA: not on the flood risk listMK4 1DB: not on the flood risk listMK4 1DD: not on the flood risk listMK4 1DE: not on the flood risk listMK4 1DF: not on the flood risk listMK4 1DG: not on the flood risk listMK4 1DH: not on the flood risk listMK4 1DJ: not on the flood risk listMK4 1DL: not on the flood risk listMK4 1DN: not on the flood risk listMK4 1DP: not on the flood risk listMK4 1DQ: not on the flood risk listMK4 1DR: not on the flood risk listMK4 1DS: not on the flood risk listMK4 1DT: not on the flood risk listMK4 1DU: not on the flood risk listMK4 1DW: not on the flood risk listMK4 1DY: not on the flood risk listMK4 1EA: not on the flood risk listMK4 1EB: not on the flood risk listMK4 1ED: not on the flood risk listMK4 1EE: not on the flood risk listMK4 1EG: not on the flood risk listMK4 1EH: not on the flood risk listMK4 1EJ: not on the flood risk listMK4 1EL: not on the flood risk listMK4 1EN: not on the flood risk listMK4 1EP: not on the flood risk listMK4 1EQ: not on the flood risk listMK4 1ER: not on the flood risk listMK4 1ES: not on the flood risk listMK4 1ET: not on the flood risk listMK4 1EU: not on the flood risk listMK4 1EZ: not on the flood risk listMK4 1FA: not on the flood risk listMK4 1FB: not on the flood risk listMK4 1GA: not on the flood risk listMK4 1GX: not on the flood risk listMK4 1HA: not on the flood risk listMK4 1HB: not on the flood risk listMK4 1HD: not on the flood risk listMK4 1HE: not on the flood risk listMK4 1HF: not on the flood risk listMK4 1HG: not on the flood risk listMK4 1HJ: not on the flood risk listMK4 1HL: not on the flood risk listMK4 1HN: not on the flood risk listMK4 1HP: not on the flood risk listMK4 1HR: not on the flood risk listMK4 1HS: not on the flood risk listMK4 1HT: not on the flood risk listMK4 1HW: not on the flood risk listMK4 1HX: not on the flood risk listMK4 1HY: not on the flood risk listMK4 1HZ: not on the flood risk listMK4 1JA: not on the flood risk listMK4 1JD: not on the flood risk listMK4 1JE: not on the flood risk listMK4 1JF: not on the flood risk listMK4 1JG: not on the flood risk listMK4 1JH: not on the flood risk listMK4 1JJ: not on the flood risk listMK4 1JP: not on the flood risk listMK4 1JQ: not on the flood risk listMK4 1JR: not on the flood risk listMK4 1JS: not on the flood risk listMK4 1JT: not on the flood risk listMK4 1JU: not on the flood risk listMK4 1JX: not on the flood risk listMK4 1JY: not on the flood risk listMK4 1JZ: not on the flood risk listMK4 1LA: not on the flood risk listMK4 1LB: not on the flood risk listMK4 1LD: not on the flood risk listMK4 1LH: not on the flood risk listMK4 1LJ: not on the flood risk listMK4 1LP: not on the flood risk listMK4 1LQ: not on the flood risk listMK4 1LR: not on the flood risk listMK4 1LS: not on the flood risk listMK4 1LT: not on the flood risk listMK4 1LU: not on the flood risk listMK4 1LX: not on the flood risk listMK4 1LY: not on the flood risk listMK4 1LZ: not on the flood risk listMK4 1NA: not on the flood risk listMK4 1NB: not on the flood risk listMK4 1ND: not on the flood risk listMK4 1WN: not on the flood risk listMK4 2AB: not on the flood risk listMK4 2AD: not on the flood risk listMK4 2AE: not on the flood risk listMK4 2AF: not on the flood risk listMK4 2AG: not on the flood risk listMK4 2AH: not on the flood risk listMK4 2AJ: not on the flood risk listMK4 2AL: not on the flood risk listMK4 2AN: not on the flood risk listMK4 2AP: not on the flood risk listMK4 2AQ: not on the flood risk listMK4 2AR: not on the flood risk listMK4 2AS: not on the flood risk listMK4 2AT: not on the flood risk listMK4 2AU: not on the flood risk listMK4 2AW: not on the flood risk listMK4 2AZ: not on the flood risk listMK4 2BA: not on the flood risk listMK4 2BB: not on the flood risk listMK4 2BD: not on the flood risk listMK4 2BE: not on the flood risk listMK4 2BH: not on the flood risk listMK4 2BJ: not on the flood risk listMK4 2BL: not on the flood risk listMK4 2BN: not on the flood risk listMK4 2BP: not on the flood risk listMK4 2BS: not on the flood risk listMK4 2BT: not on the flood risk listMK4 2BU: not on the flood risk listMK4 2DA: not on the flood risk listMK4 2DB: not on the flood risk listMK4 2DD: not on the flood risk listMK4 2DF: not on the flood risk listMK4 2DG: not on the flood risk listMK4 2DH: not on the flood risk listMK4 2DJ: not on the flood risk listMK4 2DL: not on the flood risk listMK4 2DN: not on the flood risk listMK4 2DP: not on the flood risk listMK4 2DR: not on the flood risk listMK4 2DU: not on the flood risk listMK4 2DW: not on the flood risk listMK4 2DX: not on the flood risk listMK4 2DY: not on the flood risk listMK4 2DZ: not on the flood risk listMK4 2EA: not on the flood risk listMK4 2EB: not on the flood risk listMK4 2ED: not on the flood risk listMK4 2EE: not on the flood risk listMK4 2EF: not on the flood risk listMK4 2EG: not on the flood risk listMK4 2EH: not on the flood risk listMK4 2EJ: not on the flood risk listMK4 2EL: not on the flood risk listMK4 2EN: not on the flood risk listMK4 2EP: not on the flood risk listMK4 2EQ: not on the flood risk listMK4 2ER: not on the flood risk listMK4 2ES: not on the flood risk listMK4 2ET: not on the flood risk listMK4 2EU: not on the flood risk listMK4 2EW: not on the flood risk listMK4 2EY: not on the flood risk listMK4 2EZ: not on the flood risk listMK4 2GA: not on the flood risk listMK4 2GB: not on the flood risk listMK4 2GD: not on the flood risk listMK4 2GE: not on the flood risk listMK4 2GF: not on the flood risk listMK4 2GG: not on the flood risk listMK4 2GJ: not on the flood risk listMK4 2HA: not on the flood risk listMK4 2HB: not on the flood risk listMK4 2HD: not on the flood risk listMK4 2HG: not on the flood risk listMK4 2HH: not on the flood risk listMK4 2HJ: not on the flood risk listMK4 2HL: not on the flood risk listMK4 2HN: not on the flood risk listMK4 2HP: not on the flood risk listMK4 2HQ: not on the flood risk listMK4 2HT: not on the flood risk listMK4 2HU: not on the flood risk listMK4 2HW: not on the flood risk listMK4 2HY: not on the flood risk listMK4 2JA: not on the flood risk listMK4 2JB: not on the flood risk listMK4 2JD: not on the flood risk listMK4 2JF: not on the flood risk listMK4 2JG: not on the flood risk listMK4 2JH: not on the flood risk listMK4 2JJ: not on the flood risk listMK4 2JL: not on the flood risk listMK4 2JQ: not on the flood risk listMK4 2JR: not on the flood risk listMK4 2JS: not on the flood risk listMK4 2JT: not on the flood risk listMK4 2JU: not on the flood risk listMK4 2JW: not on the flood risk listMK4 2JX: not on the flood risk listMK4 2JY: not on the flood risk listMK4 2JZ: not on the flood risk listMK4 2LA: not on the flood risk listMK4 2LB: not on the flood risk listMK4 2LD: not on the flood risk listMK4 2LF: not on the flood risk listMK4 2LG: not on the flood risk listMK4 2LH: not on the flood risk listMK4 2LJ: not on the flood risk listMK4 2LL: not on the flood risk listMK4 2LN: not on the flood risk listMK4 2LP: not on the flood risk listMK4 2LS: not on the flood risk listMK4 2LT: not on the flood risk listMK4 2LU: not on the flood risk listMK4 2LW: not on the flood risk listMK4 2LX: not on the flood risk listMK4 2NP: not on the flood risk listMK4 2SH: not on the flood risk listMK4 3AA: not on the flood risk listMK4 3AB: not on the flood risk listMK4 3AD: not on the flood risk listMK4 3AE: not on the flood risk listMK4 3AF: not on the flood risk listMK4 3AG: not on the flood risk listMK4 3AH: not on the flood risk listMK4 3AJ: not on the flood risk listMK4 3AL: not on the flood risk listMK4 3AN: not on the flood risk listMK4 3AP: not on the flood risk listMK4 3AR: not on the flood risk listMK4 3AS: not on the flood risk listMK4 3AT: not on the flood risk listMK4 3AU: not on the flood risk listMK4 3AW: not on the flood risk listMK4 3AX: not on the flood risk listMK4 3AY: not on the flood risk listMK4 3AZ: not on the flood risk listMK4 3BA: not on the flood risk listMK4 3BB: not on the flood risk listMK4 3BD: not on the flood risk listMK4 3BE: not on the flood risk listMK4 3BF: not on the flood risk listMK4 3BG: not on the flood risk listMK4 3BH: not on the flood risk listMK4 3BJ: not on the flood risk listMK4 3BL: not on the flood risk listMK4 3BN: not on the flood risk listMK4 3BP: not on the flood risk listMK4 3BQ: not on the flood risk listMK4 3BS: not on the flood risk listMK4 3BT: not on the flood risk listMK4 3BU: not on the flood risk listMK4 3BW: not on the flood risk listMK4 3BX: not on the flood risk listMK4 3BY: not on the flood risk listMK4 3BZ: not on the flood risk listMK4 3DA: not on the flood risk listMK4 3DB: not on the flood risk listMK4 3DE: not on the flood risk listMK4 3DF: not on the flood risk listMK4 3DG: not on the flood risk listMK4 3DH: not on the flood risk listMK4 3DL: not on the flood risk listMK4 3DN: not on the flood risk listMK4 3DP: not on the flood risk listMK4 3DQ: not on the flood risk listMK4 3DR: not on the flood risk listMK4 3DS: not on the flood risk listMK4 3DT: not on the flood risk listMK4 3DW: not on the flood risk listMK4 3DX: not on the flood risk listMK4 3DY: not on the flood risk listMK4 3DZ: not on the flood risk listMK4 3ED: not on the flood risk listMK4 3EE: not on the flood risk listMK4 3EF: not on the flood risk listMK4 3EG: not on the flood risk listMK4 3EH: not on the flood risk listMK4 3EJ: not on the flood risk listMK4 3EL: not on the flood risk listMK4 3EN: not on the flood risk listMK4 3EP: not on the flood risk listMK4 3EQ: not on the flood risk listMK4 3ER: not on the flood risk listMK4 3ES: not on the flood risk listMK4 3EU: not on the flood risk listMK4 3EX: not on the flood risk listMK4 3EY: not on the flood risk listMK4 3EZ: not on the flood risk listMK4 3FA: not on the flood risk listMK4 3FB: not on the flood risk listMK4 3FD: not on the flood risk listMK4 3FE: not on the flood risk listMK4 3FF: not on the flood risk listMK4 3FG: not on the flood risk listMK4 3FJ: not on the flood risk listMK4 3FL: not on the flood risk listMK4 3FN: not on the flood risk listMK4 3FP: not on the flood risk listMK4 3FR: not on the flood risk listMK4 3FS: not on the flood risk listMK4 3FU: not on the flood risk listMK4 3FW: not on the flood risk listMK4 3FX: not on the flood risk listMK4 3FZ: not on the flood risk listMK4 3GB: not on the flood risk listMK4 3GE: not on the flood risk listMK4 3GG: not on the flood risk listMK4 3HA: not on the flood risk listMK4 3HB: not on the flood risk listMK4 4AB: not on the flood risk listMK4 4AD: not on the flood risk listMK4 4AE: not on the flood risk listMK4 4AF: not on the flood risk listMK4 4AG: not on the flood risk listMK4 4AH: not on the flood risk listMK4 4AJ: not on the flood risk listMK4 4AL: not on the flood risk listMK4 4AP: not on the flood risk listMK4 4AQ: not on the flood risk listMK4 4AR: not on the flood risk listMK4 4AT: not on the flood risk listMK4 4AW: not on the flood risk listMK4 4AY: not on the flood risk listMK4 4AZ: not on the flood risk listMK4 4BD: not on the flood risk listMK4 4BF: not on the flood risk listMK4 4BG: not on the flood risk listMK4 4BH: not on the flood risk listMK4 4BJ: not on the flood risk listMK4 4BL: not on the flood risk listMK4 4BN: not on the flood risk listMK4 4BP: not on the flood risk listMK4 4BS: not on the flood risk listMK4 4BU: not on the flood risk listMK4 4BW: not on the flood risk listMK4 4BY: not on the flood risk listMK4 4BZ: not on the flood risk listMK4 4DA: not on the flood risk listMK4 4DB: not on the flood risk listMK4 4DD: not on the flood risk listMK4 4DE: not on the flood risk listMK4 4DF: not on the flood risk listMK4 4DG: not on the flood risk listMK4 4DJ: not on the flood risk listMK4 4DL: not on the flood risk listMK4 4DN: not on the flood risk listMK4 4DP: not on the flood risk listMK4 4DQ: not on the flood risk listMK4 4DR: not on the flood risk listMK4 4DS: not on the flood risk listMK4 4DT: not on the flood risk listMK4 4DU: not on the flood risk listMK4 4DY: not on the flood risk listMK4 4EA: not on the flood risk listMK4 4EB: not on the flood risk listMK4 4ED: not on the flood risk listMK4 4EG: not on the flood risk listMK4 4EH: not on the flood risk listMK4 4EJ: not on the flood risk listMK4 4EL: not on the flood risk listMK4 4EN: not on the flood risk listMK4 4EP: not on the flood risk listMK4 4EQ: not on the flood risk listMK4 4ER: not on the flood risk listMK4 4ES: not on the flood risk listMK4 4ET: not on the flood risk listMK4 4EU: not on the flood risk listMK4 4EW: not on the flood risk listMK4 4EX: not on the flood risk listMK4 4EY: not on the flood risk listMK4 4EZ: not on the flood risk listMK4 4FA: not on the flood risk listMK4 4FB: not on the flood risk listMK4 4FD: not on the flood risk listMK4 4FE: not on the flood risk listMK4 4FF: not on the flood risk listMK4 4FG: not on the flood risk listMK4 4FH: not on the flood risk listMK4 4FJ: not on the flood risk listMK4 4FN: not on the flood risk listMK4 4FP: not on the flood risk listMK4 4FQ: not on the flood risk listMK4 4FR: not on the flood risk listMK4 4FS: not on the flood risk listMK4 4FT: not on the flood risk listMK4 4FU: not on the flood risk listMK4 4FW: not on the flood risk listMK4 4FY: not on the flood risk listMK4 4GA: not on the flood risk listMK4 4GD: not on the flood risk listMK4 4GE: not on the flood risk listMK4 4GF: not on the flood risk listMK4 4GG: not on the flood risk listMK4 4GH: not on the flood risk listMK4 4GJ: not on the flood risk listMK4 4GL: not on the flood risk listMK4 4GN: not on the flood risk listMK4 4GP: not on the flood risk listMK4 4GQ: not on the flood risk listMK4 4GR: not on the flood risk listMK4 4GS: not on the flood risk listMK4 4GT: not on the flood risk listMK4 4GU: not on the flood risk listMK4 4GW: not on the flood risk listMK4 4GX: not on the flood risk listMK4 4GY: not on the flood risk listMK4 4GZ: not on the flood risk listMK4 4HA: not on the flood risk listMK4 4HB: not on the flood risk listMK4 4HD: not on the flood risk listMK4 4HE: not on the flood risk listMK4 4HF: not on the flood risk listMK4 4HG: not on the flood risk listMK4 4HH: not on the flood risk listMK4 4HJ: not on the flood risk listMK4 4HL: not on the flood risk listMK4 4HN: not on the flood risk listMK4 4HP: not on the flood risk listMK4 4HR: not on the flood risk listMK4 4HS: not on the flood risk listMK4 4HT: not on the flood risk listMK4 4HU: not on the flood risk listMK4 4HW: not on the flood risk listMK4 4HX: not on the flood risk listMK4 4HY: not on the flood risk listMK4 4HZ: not on the flood risk listMK4 4JA: not on the flood risk listMK4 4JB: not on the flood risk listMK4 4JD: not on the flood risk listMK4 4JE: not on the flood risk listMK4 4JG: not on the flood risk listMK4 4JH: not on the flood risk listMK4 4JL: not on the flood risk listMK4 4JN: not on the flood risk listMK4 4JP: not on the flood risk listMK4 4JQ: not on the flood risk listMK4 4JR: not on the flood risk listMK4 4JU: not on the flood risk listMK4 4JW: not on the flood risk listMK4 4JX: not on the flood risk listMK4 4JY: not on the flood risk listMK4 4JZ: not on the flood risk listMK4 4LA: not on the flood risk listMK4 4LB: not on the flood risk listMK4 4LD: not on the flood risk listMK4 4LE: not on the flood risk listMK4 4LF: not on the flood risk listMK4 4LG: not on the flood risk listMK4 4LH: not on the flood risk listMK4 4LJ: not on the flood risk listMK4 4LL: not on the flood risk listMK4 4LN: not on the flood risk listMK4 4LP: not on the flood risk listMK4 4LR: not on the flood risk listMK4 4LS: not on the flood risk listMK4 4LT: not on the flood risk listMK4 4LU: not on the flood risk listMK4 4LW: not on the flood risk listMK4 4LX: not on the flood risk listMK4 4LY: not on the flood risk listMK4 4LZ: not on the flood risk listMK4 4NA: not on the flood risk listMK4 4NB: not on the flood risk listMK4 4ND: not on the flood risk listMK4 4NE: not on the flood risk listMK4 4NG: not on the flood risk listMK4 4NH: not on the flood risk listMK4 4NJ: not on the flood risk listMK4 4NL: not on the flood risk listMK4 4NN: not on the flood risk listMK4 4NP: not on the flood risk listMK4 4NQ: not on the flood risk listMK4 4NR: not on the flood risk listMK4 4NS: not on the flood risk listMK4 4NT: not on the flood risk listMK4 4NW: not on the flood risk listMK4 4NX: not on the flood risk listMK4 4NY: not on the flood risk listMK4 4NZ: not on the flood risk listMK4 4PE: not on the flood risk listMK4 4PF: not on the flood risk listMK4 4PJ: not on the flood risk listMK4 4PL: not on the flood risk listMK4 4PN: not on the flood risk listMK4 4PP: not on the flood risk listMK4 4PQ: not on the flood risk listMK4 4PR: not on the flood risk listMK4 4PS: not on the flood risk listMK4 4PT: not on the flood risk listMK4 4PU: not on the flood risk listMK4 4PW: not on the flood risk listMK4 4PX: not on the flood risk listMK4 4PY: not on the flood risk listMK4 4PZ: not on the flood risk listMK4 4QA: not on the flood risk listMK4 4QB: not on the flood risk listMK4 4QD: not on the flood risk listMK4 4QE: not on the flood risk listMK4 4QF: not on the flood risk listMK4 4QG: not on the flood risk listMK4 4QH: not on the flood risk listMK4 4QJ: not on the flood risk listMK4 4QL: not on the flood risk listMK4 4QN: not on the flood risk listMK4 4QP: not on the flood risk listMK4 4QX: not on the flood risk listMK4 4RA: not on the flood risk listMK4 4RB: not on the flood risk listMK4 4RD: not on the flood risk listMK4 4RF: not on the flood risk listMK4 4RG: not on the flood risk listMK4 4RJ: not on the flood risk listMK4 4RQ: not on the flood risk listMK4 4RR: not on the flood risk listMK4 4RS: not on the flood risk listMK4 4RT: not on the flood risk listMK4 4RW: not on the flood risk listMK4 4SQ: not on the flood risk listMK4 4SR: not on the flood risk listMK4 4SS: not on the flood risk listMK4 4ST: not on the flood risk listMK4 4SU: not on the flood risk listMK4 4SW: not on the flood risk listMK4 4SX: not on the flood risk listMK4 4SY: not on the flood risk listMK4 4TA: not on the flood risk listMK4 4TB: not on the flood risk listMK4 4TD: not on the flood risk listMK4 4TE: not on the flood risk listMK4 4TF: not on the flood risk listMK4 4TG: not on the flood risk listMK4 4TH: not on the flood risk listMK4 4TJ: not on the flood risk listMK4 4TL: not on the flood risk listMK4 4TP: not on the flood risk listMK4 4TQ: not on the flood risk listMK4 4TR: not on the flood risk listMK4 4TS: not on the flood risk listMK4 4TT: not on the flood risk listMK4 4TU: not on the flood risk listMK4 4TW: not on the flood risk listMK4 4TX: not on the flood risk listMK4 4TY: not on the flood risk listMK4 4TZ: not on the flood risk listMK4 4DH: low flood risk at worstMK4 1JL: medium flood risk at worstMK4 1JN: medium flood risk at worstMK4 1JW: medium flood risk at worstMK4 1LW: high flood risk Bletchley Map of every postcode in MK4, by flood risk Of the 628 postcodes in MK4 that ONS places, 1 have a home or business at high risk, 3 are at medium risk at worst, 1 are at low risk at worst and 623 are not on the Environment Agency's at-risk list. Places named: Bletchley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Bletchley
  • A home or business at high risk: 1
  • At medium risk at worst: 3
  • At low risk at worst: 1
  • At very low risk only: 0
  • Not on the at-risk list: 623

Of the 628 postcodes in MK4 that ONS places, 1 have a home or business at high risk, 3 are at medium risk at worst, 1 are at low risk at worst and 623 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 52.0030, longitude -0.7859. 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.

MK4 1LW3 at high risk

What broadband can you get in MK4?

Ofcom reports on 605 of the 628 postcodes in MK4. At 586 of them every home and business can get gigabit broadband, and at 1 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit586 of 605
Postcodes where every home can get superfast601 of 605
Postcodes where some cannot get decent broadband1 of 605

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 MK4 at risk of flooding?

5 of the 628 postcodes in MK4 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 20 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 5 of 628 postcodes High: 3Medium: 17Low: 10

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 MK4?

Homes in MK4 sold for a typical £353,750 in the 12 months to August 2026, across 232 sales, down 10.4% on the 12 months before, HM Land Registry's figures show.

£353,750 typical price, the 12 months to August 2026
£395,000 12 months to August 2025
▼ down 10.4% on the 12 months before
  • Detached £490,000 89 sales
  • Semi-detached £320,000 49 sales
  • Terraced £295,000 63 sales
  • Flat or maisonette £217,500 31 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 MK4

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

MK4 1136 postcodesMK4 2127 postcodesMK4 3101 postcodesMK4 4264 postcodes
UK postcode format explained

Places in MK4

Towns and villages with postcodes in MK4, and how many each has here.

Milton Keynes postcodes,584Bletchley postcodes,4

Who covers MK4

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 Bletchley459
  • Milton Keynes Central169

Police force areas

  • Thames Valley628

Next to MK4

MK3 postcode district MK5 postcode district All MK districts Milton Keynes postcodes

"Next to" is by number: the districts before and after MK4 in the MK area.

Check a postcode

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