HA6 postcode district: Hillingdon and around

HA6 is a postcode district in England, with 721 postcodes in use in 4 sectors. It has postcodes in Hillingdon and Moor Park. It is split between 2 councils: Hillingdon (527 postcodes) and Three Rivers (194). 194 of its 721 postcodes are in Hertfordshire. ONS lists no county for the other 527.

Postcodes in use
721
Sectors
4
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 HA6, by flood risk

Map of every postcode in HA6, by flood risk Of the 721 postcodes in HA6 that ONS places, 1 have a home or business at high risk, 2 are at low risk at worst and 718 are not on the Environment Agency's at-risk list. Places named: Moor Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A4180 HA6 1AB: not on the flood risk listHA6 1AE: not on the flood risk listHA6 1AF: not on the flood risk listHA6 1AG: not on the flood risk listHA6 1AH: not on the flood risk listHA6 1AJ: not on the flood risk listHA6 1AL: not on the flood risk listHA6 1AN: not on the flood risk listHA6 1AP: not on the flood risk listHA6 1AQ: not on the flood risk listHA6 1AR: not on the flood risk listHA6 1AS: not on the flood risk listHA6 1AT: not on the flood risk listHA6 1AU: not on the flood risk listHA6 1AW: not on the flood risk listHA6 1AZ: not on the flood risk listHA6 1BA: not on the flood risk listHA6 1BE: not on the flood risk listHA6 1BG: not on the flood risk listHA6 1BH: not on the flood risk listHA6 1BJ: not on the flood risk listHA6 1BL: not on the flood risk listHA6 1BN: not on the flood risk listHA6 1BP: not on the flood risk listHA6 1BQ: not on the flood risk listHA6 1BS: not on the flood risk listHA6 1BT: not on the flood risk listHA6 1BU: not on the flood risk listHA6 1BW: not on the flood risk listHA6 1BX: not on the flood risk listHA6 1BZ: not on the flood risk listHA6 1DA: not on the flood risk listHA6 1DB: not on the flood risk listHA6 1DD: not on the flood risk listHA6 1DE: not on the flood risk listHA6 1DF: not on the flood risk listHA6 1DG: not on the flood risk listHA6 1DH: not on the flood risk listHA6 1DJ: not on the flood risk listHA6 1DN: not on the flood risk listHA6 1DP: not on the flood risk listHA6 1DQ: not on the flood risk listHA6 1DR: not on the flood risk listHA6 1DS: not on the flood risk listHA6 1DT: not on the flood risk listHA6 1DU: not on the flood risk listHA6 1DW: not on the flood risk listHA6 1DX: not on the flood risk listHA6 1DY: not on the flood risk listHA6 1DZ: not on the flood risk listHA6 1EB: not on the flood risk listHA6 1ED: not on the flood risk listHA6 1EE: not on the flood risk listHA6 1EF: not on the flood risk listHA6 1EG: not on the flood risk listHA6 1EH: not on the flood risk listHA6 1EJ: not on the flood risk listHA6 1EL: not on the flood risk listHA6 1EP: not on the flood risk listHA6 1EQ: not on the flood risk listHA6 1ER: not on the flood risk listHA6 1ES: not on the flood risk listHA6 1ET: not on the flood risk listHA6 1EU: not on the flood risk listHA6 1EW: not on the flood risk listHA6 1EX: not on the flood risk listHA6 1EY: not on the flood risk listHA6 1EZ: not on the flood risk listHA6 1FA: not on the flood risk listHA6 1FB: not on the flood risk listHA6 1FD: not on the flood risk listHA6 1FE: not on the flood risk listHA6 1HA: not on the flood risk listHA6 1HB: not on the flood risk listHA6 1HD: not on the flood risk listHA6 1HE: not on the flood risk listHA6 1HF: not on the flood risk listHA6 1HG: not on the flood risk listHA6 1HH: not on the flood risk listHA6 1HJ: not on the flood risk listHA6 1HL: not on the flood risk listHA6 1HP: not on the flood risk listHA6 1HQ: not on the flood risk listHA6 1HR: not on the flood risk listHA6 1HS: not on the flood risk listHA6 1HT: not on the flood risk listHA6 1HU: not on the flood risk listHA6 1HW: not on the flood risk listHA6 1HX: not on the flood risk listHA6 1HY: not on the flood risk listHA6 1JE: not on the flood risk listHA6 1JF: not on the flood risk listHA6 1JG: not on the flood risk listHA6 1JH: not on the flood risk listHA6 1JJ: not on the flood risk listHA6 1JL: not on the flood risk listHA6 1JN: not on the flood risk listHA6 1JP: not on the flood risk listHA6 1JQ: not on the flood risk listHA6 1JR: not on the flood risk listHA6 1JS: not on the flood risk listHA6 1JT: not on the flood risk listHA6 1JU: not on the flood risk listHA6 1JW: not on the flood risk listHA6 1JX: not on the flood risk listHA6 1JY: not on the flood risk listHA6 1JZ: not on the flood risk listHA6 1LA: not on the flood risk listHA6 1LB: not on the flood risk listHA6 1LD: not on the flood risk listHA6 1LJ: not on the flood risk listHA6 1LL: not on the flood risk listHA6 1LP: not on the flood risk listHA6 1LR: not on the flood risk listHA6 1LT: not on the flood risk listHA6 1LU: not on the flood risk listHA6 1LX: not on the flood risk listHA6 1LY: not on the flood risk listHA6 1LZ: not on the flood risk listHA6 1NA: not on the flood risk listHA6 1NB: not on the flood risk listHA6 1ND: not on the flood risk listHA6 1NE: not on the flood risk listHA6 1NF: not on the flood risk listHA6 1NG: not on the flood risk listHA6 1NH: not on the flood risk listHA6 1NJ: not on the flood risk listHA6 1NL: not on the flood risk listHA6 1NP: not on the flood risk listHA6 1NU: not on the flood risk listHA6 1NW: not on the flood risk listHA6 1NZ: not on the flood risk listHA6 1PA: not on the flood risk listHA6 1PB: not on the flood risk listHA6 1PD: not on the flood risk listHA6 1PE: not on the flood risk listHA6 1PF: not on the flood risk listHA6 1PH: not on the flood risk listHA6 1PJ: not on the flood risk listHA6 1PL: not on the flood risk listHA6 1PN: not on the flood risk listHA6 1PS: not on the flood risk listHA6 1PW: not on the flood risk listHA6 1PY: not on the flood risk listHA6 1PZ: not on the flood risk listHA6 1QA: not on the flood risk listHA6 1QB: not on the flood risk listHA6 1QD: not on the flood risk listHA6 1QE: not on the flood risk listHA6 1QF: not on the flood risk listHA6 1QG: not on the flood risk listHA6 1QH: not on the flood risk listHA6 1QJ: not on the flood risk listHA6 1QL: not on the flood risk listHA6 1QN: not on the flood risk listHA6 1QP: not on the flood risk listHA6 1QQ: not on the flood risk listHA6 1QR: not on the flood risk listHA6 1QS: not on the flood risk listHA6 1RA: not on the flood risk listHA6 1RB: not on the flood risk listHA6 1RD: not on the flood risk listHA6 1RE: not on the flood risk listHA6 1RF: not on the flood risk listHA6 1RG: not on the flood risk listHA6 1RH: not on the flood risk listHA6 1RJ: not on the flood risk listHA6 1RL: not on the flood risk listHA6 1RN: not on the flood risk listHA6 1RP: not on the flood risk listHA6 1RQ: not on the flood risk listHA6 1RR: not on the flood risk listHA6 1RS: not on the flood risk listHA6 1RT: not on the flood risk listHA6 1RU: not on the flood risk listHA6 1RW: not on the flood risk listHA6 1RX: not on the flood risk listHA6 1SB: not on the flood risk listHA6 1SD: not on the flood risk listHA6 1SE: not on the flood risk listHA6 1SF: not on the flood risk listHA6 1SG: not on the flood risk listHA6 1SH: not on the flood risk listHA6 1SJ: not on the flood risk listHA6 1SL: not on the flood risk listHA6 1SN: not on the flood risk listHA6 1SP: not on the flood risk listHA6 1SQ: not on the flood risk listHA6 1SR: not on the flood risk listHA6 1SS: not on the flood risk listHA6 1ST: not on the flood risk listHA6 1SU: not on the flood risk listHA6 1SW: not on the flood risk listHA6 1SX: not on the flood risk listHA6 1SY: not on the flood risk listHA6 1SZ: not on the flood risk listHA6 1TA: not on the flood risk listHA6 1TB: not on the flood risk listHA6 1TE: not on the flood risk listHA6 1TF: not on the flood risk listHA6 1TG: not on the flood risk listHA6 1TH: not on the flood risk listHA6 1TJ: not on the flood risk listHA6 1TL: not on the flood risk listHA6 1TN: not on the flood risk listHA6 1TQ: not on the flood risk listHA6 1UA: not on the flood risk listHA6 1UD: not on the flood risk listHA6 2AA: not on the flood risk listHA6 2AD: not on the flood risk listHA6 2AE: not on the flood risk listHA6 2AF: not on the flood risk listHA6 2AG: not on the flood risk listHA6 2AH: not on the flood risk listHA6 2AJ: not on the flood risk listHA6 2AL: not on the flood risk listHA6 2AN: not on the flood risk listHA6 2AP: not on the flood risk listHA6 2AQ: not on the flood risk listHA6 2AR: not on the flood risk listHA6 2AS: not on the flood risk listHA6 2AT: not on the flood risk listHA6 2AU: not on the flood risk listHA6 2AW: not on the flood risk listHA6 2AX: not on the flood risk listHA6 2AY: not on the flood risk listHA6 2AZ: not on the flood risk listHA6 2BA: not on the flood risk listHA6 2BB: not on the flood risk listHA6 2BD: not on the flood risk listHA6 2BE: not on the flood risk listHA6 2BH: not on the flood risk listHA6 2BJ: not on the flood risk listHA6 2BL: not on the flood risk listHA6 2BN: not on the flood risk listHA6 2BP: not on the flood risk listHA6 2BQ: not on the flood risk listHA6 2BS: not on the flood risk listHA6 2BT: not on the flood risk listHA6 2BU: not on the flood risk listHA6 2BW: not on the flood risk listHA6 2BX: not on the flood risk listHA6 2BY: not on the flood risk listHA6 2BZ: not on the flood risk listHA6 2DA: not on the flood risk listHA6 2DB: not on the flood risk listHA6 2DD: not on the flood risk listHA6 2DE: not on the flood risk listHA6 2DF: not on the flood risk listHA6 2DG: not on the flood risk listHA6 2DH: not on the flood risk listHA6 2DJ: not on the flood risk listHA6 2DL: not on the flood risk listHA6 2DN: not on the flood risk listHA6 2DP: not on the flood risk listHA6 2DQ: not on the flood risk listHA6 2DR: not on the flood risk listHA6 2DW: not on the flood risk listHA6 2EB: not on the flood risk listHA6 2ED: not on the flood risk listHA6 2EE: not on the flood risk listHA6 2EF: not on the flood risk listHA6 2EG: not on the flood risk listHA6 2EH: not on the flood risk listHA6 2EJ: not on the flood risk listHA6 2EL: not on the flood risk listHA6 2EN: not on the flood risk listHA6 2EP: not on the flood risk listHA6 2EQ: not on the flood risk listHA6 2ER: not on the flood risk listHA6 2EU: not on the flood risk listHA6 2EW: not on the flood risk listHA6 2FD: not on the flood risk listHA6 2FE: not on the flood risk listHA6 2FF: not on the flood risk listHA6 2FG: not on the flood risk listHA6 2FP: not on the flood risk listHA6 2FR: not on the flood risk listHA6 2FS: not on the flood risk listHA6 2FT: not on the flood risk listHA6 2FX: not on the flood risk listHA6 2FY: not on the flood risk listHA6 2FZ: not on the flood risk listHA6 2GA: not on the flood risk listHA6 2GB: not on the flood risk listHA6 2GD: not on the flood risk listHA6 2GE: not on the flood risk listHA6 2GF: not on the flood risk listHA6 2GG: not on the flood risk listHA6 2GN: not on the flood risk listHA6 2GU: not on the flood risk listHA6 2GX: not on the flood risk listHA6 2GY: not on the flood risk listHA6 2HE: not on the flood risk listHA6 2HH: not on the flood risk listHA6 2HJ: not on the flood risk listHA6 2HL: not on the flood risk listHA6 2HN: not on the flood risk listHA6 2HP: not on the flood risk listHA6 2HQ: not on the flood risk listHA6 2HR: not on the flood risk listHA6 2HS: not on the flood risk listHA6 2HT: not on the flood risk listHA6 2HU: not on the flood risk listHA6 2HW: not on the flood risk listHA6 2HX: not on the flood risk listHA6 2HY: not on the flood risk listHA6 2HZ: not on the flood risk listHA6 2JA: not on the flood risk listHA6 2JB: not on the flood risk listHA6 2JD: not on the flood risk listHA6 2JE: not on the flood risk listHA6 2JF: not on the flood risk listHA6 2JG: not on the flood risk listHA6 2JH: not on the flood risk listHA6 2JP: not on the flood risk listHA6 2JQ: not on the flood risk listHA6 2JS: not on the flood risk listHA6 2JU: not on the flood risk listHA6 2JW: not on the flood risk listHA6 2JX: not on the flood risk listHA6 2JZ: not on the flood risk listHA6 2LA: not on the flood risk listHA6 2LB: not on the flood risk listHA6 2LD: not on the flood risk listHA6 2LE: not on the flood risk listHA6 2LF: not on the flood risk listHA6 2LG: not on the flood risk listHA6 2LH: not on the flood risk listHA6 2LJ: not on the flood risk listHA6 2LL: not on the flood risk listHA6 2LN: not on the flood risk listHA6 2LP: not on the flood risk listHA6 2LQ: not on the flood risk listHA6 2LR: not on the flood risk listHA6 2LS: not on the flood risk listHA6 2LU: not on the flood risk listHA6 2LW: not on the flood risk listHA6 2LZ: not on the flood risk listHA6 2NF: not on the flood risk listHA6 2NG: not on the flood risk listHA6 2NH: not on the flood risk listHA6 2NJ: not on the flood risk listHA6 2NL: not on the flood risk listHA6 2NN: not on the flood risk listHA6 2NP: not on the flood risk listHA6 2NQ: not on the flood risk listHA6 2NR: not on the flood risk listHA6 2NS: not on the flood risk listHA6 2NT: not on the flood risk listHA6 2NU: not on the flood risk listHA6 2NW: not on the flood risk listHA6 2NX: not on the flood risk listHA6 2NY: not on the flood risk listHA6 2NZ: not on the flood risk listHA6 2PA: not on the flood risk listHA6 2PB: not on the flood risk listHA6 2PD: not on the flood risk listHA6 2PE: not on the flood risk listHA6 2PF: not on the flood risk listHA6 2PG: not on the flood risk listHA6 2PH: not on the flood risk listHA6 2PJ: not on the flood risk listHA6 2PL: not on the flood risk listHA6 2PN: not on the flood risk listHA6 2PQ: not on the flood risk listHA6 2PR: not on the flood risk listHA6 2PS: not on the flood risk listHA6 2PT: not on the flood risk listHA6 2PW: not on the flood risk listHA6 2PX: not on the flood risk listHA6 2QB: not on the flood risk listHA6 2QD: not on the flood risk listHA6 2QF: not on the flood risk listHA6 2QG: not on the flood risk listHA6 2QH: not on the flood risk listHA6 2QJ: not on the flood risk listHA6 2QL: not on the flood risk listHA6 2QN: not on the flood risk listHA6 2QP: not on the flood risk listHA6 2QQ: not on the flood risk listHA6 2QT: not on the flood risk listHA6 2QW: not on the flood risk listHA6 2QY: not on the flood risk listHA6 2QZ: not on the flood risk listHA6 2RB: not on the flood risk listHA6 2RD: not on the flood risk listHA6 2RE: not on the flood risk listHA6 2RF: not on the flood risk listHA6 2RG: not on the flood risk listHA6 2RH: not on the flood risk listHA6 2RJ: not on the flood risk listHA6 2RL: not on the flood risk listHA6 2RN: not on the flood risk listHA6 2RP: not on the flood risk listHA6 2RQ: not on the flood risk listHA6 2RR: not on the flood risk listHA6 2RS: not on the flood risk listHA6 2RT: not on the flood risk listHA6 2RU: not on the flood risk listHA6 2RW: not on the flood risk listHA6 2RX: not on the flood risk listHA6 2RY: not on the flood risk listHA6 2RZ: not on the flood risk listHA6 2SA: not on the flood risk listHA6 2SB: not on the flood risk listHA6 2SD: not on the flood risk listHA6 2SE: not on the flood risk listHA6 2SG: not on the flood risk listHA6 2SH: not on the flood risk listHA6 2SJ: not on the flood risk listHA6 2SL: not on the flood risk listHA6 2SN: not on the flood risk listHA6 2SP: not on the flood risk listHA6 2SQ: not on the flood risk listHA6 2SR: not on the flood risk listHA6 2SS: not on the flood risk listHA6 2ST: not on the flood risk listHA6 2SU: not on the flood risk listHA6 2SW: not on the flood risk listHA6 2SX: not on the flood risk listHA6 2SY: not on the flood risk listHA6 2SZ: not on the flood risk listHA6 2TA: not on the flood risk listHA6 2TB: not on the flood risk listHA6 2TD: not on the flood risk listHA6 2TE: not on the flood risk listHA6 2TF: not on the flood risk listHA6 2TG: not on the flood risk listHA6 2TH: not on the flood risk listHA6 2TJ: not on the flood risk listHA6 2TL: not on the flood risk listHA6 2TN: not on the flood risk listHA6 2TP: not on the flood risk listHA6 2TQ: not on the flood risk listHA6 2TR: not on the flood risk listHA6 2TS: not on the flood risk listHA6 2TT: not on the flood risk listHA6 2TU: not on the flood risk listHA6 2TW: not on the flood risk listHA6 2TX: not on the flood risk listHA6 2TY: not on the flood risk listHA6 2TZ: not on the flood risk listHA6 2UA: not on the flood risk listHA6 2UB: not on the flood risk listHA6 2UD: not on the flood risk listHA6 2UE: not on the flood risk listHA6 2UF: not on the flood risk listHA6 2UG: not on the flood risk listHA6 2UH: not on the flood risk listHA6 2UJ: not on the flood risk listHA6 2UL: not on the flood risk listHA6 2UN: not on the flood risk listHA6 2UP: not on the flood risk listHA6 2UR: not on the flood risk listHA6 2UT: not on the flood risk listHA6 2UW: not on the flood risk listHA6 2UX: not on the flood risk listHA6 2UY: not on the flood risk listHA6 2UZ: not on the flood risk listHA6 2WA: not on the flood risk listHA6 2WG: not on the flood risk listHA6 2WQ: not on the flood risk listHA6 2XA: not on the flood risk listHA6 2XB: not on the flood risk listHA6 2XD: not on the flood risk listHA6 2XE: not on the flood risk listHA6 2XF: not on the flood risk listHA6 2XG: not on the flood risk listHA6 2XH: not on the flood risk listHA6 2XJ: not on the flood risk listHA6 2XL: not on the flood risk listHA6 2XN: not on the flood risk listHA6 2XP: not on the flood risk listHA6 2XQ: not on the flood risk listHA6 2XS: not on the flood risk listHA6 2XU: not on the flood risk listHA6 2XW: not on the flood risk listHA6 2YE: not on the flood risk listHA6 2YF: not on the flood risk listHA6 2YG: not on the flood risk listHA6 2YH: not on the flood risk listHA6 2YJ: not on the flood risk listHA6 2YL: not on the flood risk listHA6 2YP: not on the flood risk listHA6 2YQ: not on the flood risk listHA6 2YR: not on the flood risk listHA6 2YS: not on the flood risk listHA6 2YT: not on the flood risk listHA6 2YU: not on the flood risk listHA6 2YX: not on the flood risk listHA6 2YY: not on the flood risk listHA6 2YZ: not on the flood risk listHA6 3AA: not on the flood risk listHA6 3AD: not on the flood risk listHA6 3AE: not on the flood risk listHA6 3AJ: not on the flood risk listHA6 3AL: not on the flood risk listHA6 3AN: not on the flood risk listHA6 3AP: not on the flood risk listHA6 3AR: not on the flood risk listHA6 3AS: not on the flood risk listHA6 3AT: not on the flood risk listHA6 3AU: not on the flood risk listHA6 3AW: not on the flood risk listHA6 3AX: not on the flood risk listHA6 3AY: not on the flood risk listHA6 3AZ: not on the flood risk listHA6 3BA: not on the flood risk listHA6 3BB: not on the flood risk listHA6 3BD: not on the flood risk listHA6 3BE: not on the flood risk listHA6 3BF: not on the flood risk listHA6 3BG: not on the flood risk listHA6 3BP: not on the flood risk listHA6 3BQ: not on the flood risk listHA6 3BS: not on the flood risk listHA6 3BT: not on the flood risk listHA6 3BU: not on the flood risk listHA6 3BX: not on the flood risk listHA6 3BY: not on the flood risk listHA6 3BZ: not on the flood risk listHA6 3DA: not on the flood risk listHA6 3DB: not on the flood risk listHA6 3DD: not on the flood risk listHA6 3DE: not on the flood risk listHA6 3DF: not on the flood risk listHA6 3DG: not on the flood risk listHA6 3DQ: not on the flood risk listHA6 3DR: not on the flood risk listHA6 3DS: not on the flood risk listHA6 3DT: not on the flood risk listHA6 3DU: not on the flood risk listHA6 3DX: not on the flood risk listHA6 3DY: not on the flood risk listHA6 3DZ: not on the flood risk listHA6 3EA: not on the flood risk listHA6 3EB: not on the flood risk listHA6 3ED: not on the flood risk listHA6 3EE: not on the flood risk listHA6 3EF: not on the flood risk listHA6 3EG: not on the flood risk listHA6 3EH: not on the flood risk listHA6 3EJ: not on the flood risk listHA6 3EQ: not on the flood risk listHA6 3ER: not on the flood risk listHA6 3ES: not on the flood risk listHA6 3ET: not on the flood risk listHA6 3EU: not on the flood risk listHA6 3EW: not on the flood risk listHA6 3EX: not on the flood risk listHA6 3EY: not on the flood risk listHA6 3EZ: not on the flood risk listHA6 3FB: not on the flood risk listHA6 3FD: not on the flood risk listHA6 3FE: not on the flood risk listHA6 3FF: not on the flood risk listHA6 3FG: not on the flood risk listHA6 3FH: not on the flood risk listHA6 3FJ: not on the flood risk listHA6 3FL: not on the flood risk listHA6 3FN: not on the flood risk listHA6 3FP: not on the flood risk listHA6 3FQ: not on the flood risk listHA6 3FX: not on the flood risk listHA6 3GA: not on the flood risk listHA6 3GZ: not on the flood risk listHA6 3HA: not on the flood risk listHA6 3HB: not on the flood risk listHA6 3HD: not on the flood risk listHA6 3HE: not on the flood risk listHA6 3HF: not on the flood risk listHA6 3HG: not on the flood risk listHA6 3HH: not on the flood risk listHA6 3HJ: not on the flood risk listHA6 3HL: not on the flood risk listHA6 3HN: not on the flood risk listHA6 3HQ: not on the flood risk listHA6 3HS: not on the flood risk listHA6 3HT: not on the flood risk listHA6 3HU: not on the flood risk listHA6 3HW: not on the flood risk listHA6 3HX: not on the flood risk listHA6 3HY: not on the flood risk listHA6 3HZ: not on the flood risk listHA6 3JA: not on the flood risk listHA6 3JB: not on the flood risk listHA6 3JD: not on the flood risk listHA6 3JF: not on the flood risk listHA6 3JG: not on the flood risk listHA6 3JH: not on the flood risk listHA6 3JJ: not on the flood risk listHA6 3JL: not on the flood risk listHA6 3JN: not on the flood risk listHA6 3JP: not on the flood risk listHA6 3JQ: not on the flood risk listHA6 3JR: not on the flood risk listHA6 3JS: not on the flood risk listHA6 3JU: not on the flood risk listHA6 3JW: not on the flood risk listHA6 3JZ: not on the flood risk listHA6 3LA: not on the flood risk listHA6 3LB: not on the flood risk listHA6 3LD: not on the flood risk listHA6 3LE: not on the flood risk listHA6 3LF: not on the flood risk listHA6 3LG: not on the flood risk listHA6 3LH: not on the flood risk listHA6 3LJ: not on the flood risk listHA6 3LL: not on the flood risk listHA6 3LN: not on the flood risk listHA6 3LP: not on the flood risk listHA6 3LQ: not on the flood risk listHA6 3LR: not on the flood risk listHA6 3LS: not on the flood risk listHA6 3LT: not on the flood risk listHA6 3LU: not on the flood risk listHA6 3LW: not on the flood risk listHA6 3LX: not on the flood risk listHA6 3LY: not on the flood risk listHA6 3LZ: not on the flood risk listHA6 3NA: not on the flood risk listHA6 3NB: not on the flood risk listHA6 3ND: not on the flood risk listHA6 3NE: not on the flood risk listHA6 3NF: not on the flood risk listHA6 3NG: not on the flood risk listHA6 3NH: not on the flood risk listHA6 3NJ: not on the flood risk listHA6 3NL: not on the flood risk listHA6 3NN: not on the flood risk listHA6 3NP: not on the flood risk listHA6 3NQ: not on the flood risk listHA6 3NR: not on the flood risk listHA6 3NS: not on the flood risk listHA6 3NT: not on the flood risk listHA6 3NU: not on the flood risk listHA6 3NW: not on the flood risk listHA6 3NX: not on the flood risk listHA6 3NY: not on the flood risk listHA6 3NZ: not on the flood risk listHA6 3PA: not on the flood risk listHA6 3PE: not on the flood risk listHA6 3PF: not on the flood risk listHA6 3PG: not on the flood risk listHA6 3PH: not on the flood risk listHA6 3PJ: not on the flood risk listHA6 3PL: not on the flood risk listHA6 3PN: not on the flood risk listHA6 3PP: not on the flood risk listHA6 3PR: not on the flood risk listHA6 3PS: not on the flood risk listHA6 3PU: not on the flood risk listHA6 3PW: not on the flood risk listHA6 3PX: not on the flood risk listHA6 3PY: not on the flood risk listHA6 3PZ: not on the flood risk listHA6 3QA: not on the flood risk listHA6 3QB: not on the flood risk listHA6 3QD: not on the flood risk listHA6 3QE: not on the flood risk listHA6 3QF: not on the flood risk listHA6 3QG: not on the flood risk listHA6 3QH: not on the flood risk listHA6 3QJ: not on the flood risk listHA6 3QL: not on the flood risk listHA6 3QN: not on the flood risk listHA6 3QP: not on the flood risk listHA6 3QQ: not on the flood risk listHA6 3QR: not on the flood risk listHA6 3QS: not on the flood risk listHA6 3QT: not on the flood risk listHA6 3QU: not on the flood risk listHA6 3QX: not on the flood risk listHA6 3QZ: not on the flood risk listHA6 3RB: not on the flood risk listHA6 3RD: not on the flood risk listHA6 3RE: not on the flood risk listHA6 3SA: not on the flood risk listHA6 3SB: not on the flood risk listHA6 3SD: not on the flood risk listHA6 3SE: not on the flood risk listHA6 3SF: not on the flood risk listHA6 3SH: not on the flood risk listHA6 3SJ: not on the flood risk listHA6 3SW: not on the flood risk listHA6 3TU: not on the flood risk listHA6 1HN: low flood risk at worstHA6 1QW: low flood risk at worstHA6 2ET: high flood risk Moor Park Map of every postcode in HA6, by flood risk Of the 721 postcodes in HA6 that ONS places, 1 have a home or business at high risk, 2 are at low risk at worst and 718 are not on the Environment Agency's at-risk list. Places named: Moor Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A4145 Moor Park
  • A home or business at high risk: 1
  • At medium risk at worst: 0
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 718

Of the 721 postcodes in HA6 that ONS places, 1 have a home or business at high risk, 2 are at low risk at worst and 718 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 51.6119, longitude -0.4225. 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.

HA6 2ET1 at high risk

What broadband can you get in HA6?

Ofcom reports on 699 of the 721 postcodes in HA6. At 453 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit453 of 699
Postcodes where every home can get superfast673 of 699

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 HA6 at risk of flooding?

3 of the 721 postcodes in HA6 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 home or business in an area at high or medium risk.

Homes and businesses in an area at risk, at 3 of 721 postcodes High: 1Low: 12

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 HA6?

Homes in HA6 sold for a typical £727,385 in the 12 months to August 2026, across 160 sales, down 1.7% on the 12 months before, HM Land Registry's figures show.

£727,385 typical price, the 12 months to August 2026
£740,000 12 months to August 2025
▼ down 1.7% on the 12 months before
  • Detached £1,325,000 56 sales
  • Semi-detached £786,500 39 sales
  • Terraced £515,000 21 sales
  • Flat or maisonette £416,000 44 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 HA6

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

HA6 1216 postcodesHA6 2290 postcodesHA6 3201 postcodesHA6 914 postcodes
UK postcode format explained

Places in HA6

Towns and villages with postcodes in HA6, and how many each has here.

Hillingdon postcodes,524Moor Park postcodes,193

Who covers HA6

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

  • Ruislip, Northwood and Pinner527
  • South West Hertfordshire194

Police force areas

  • Metropolitan Police527
  • Hertfordshire194

Next to HA6

HA5 postcode district HA7 postcode district All HA districts Hillingdon postcodes

"Next to" is by number: the districts before and after HA6 in the HA area.

Check a postcode

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