WD23 postcode district: Bushey and around

WD23 is a postcode district mostly in Hertfordshire, with 769 postcodes in use in 5 sectors. It has postcodes in Bushey, Watford and Harrow. It is split between 3 councils: Hertsmere (756 postcodes), Watford (10) and Harrow (3). 766 are in Hertfordshire. ONS lists no county for the other 3.

Postcodes in use
769
Sectors
5
Councils
3 councils
Places
3 places

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

Every postcode in WD23, by flood risk

Map of every postcode in WD23, by flood risk Of the 769 postcodes in WD23 that ONS places, 13 have a home or business at high risk, 14 are at medium risk at worst, 15 are at low risk at worst and 727 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 19 postcodes at high or medium risk. Places named: Bushey. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M1A41 WD23 1AA: not on the flood risk listWD23 1AB: not on the flood risk listWD23 1AD: not on the flood risk listWD23 1AE: not on the flood risk listWD23 1AG: not on the flood risk listWD23 1AH: not on the flood risk listWD23 1AJ: not on the flood risk listWD23 1AL: not on the flood risk listWD23 1AN: not on the flood risk listWD23 1AP: not on the flood risk listWD23 1AQ: not on the flood risk listWD23 1AR: not on the flood risk listWD23 1AS: not on the flood risk listWD23 1AT: not on the flood risk listWD23 1AU: not on the flood risk listWD23 1AW: not on the flood risk listWD23 1AX: not on the flood risk listWD23 1AY: not on the flood risk listWD23 1BA: not on the flood risk listWD23 1BB: not on the flood risk listWD23 1BD: not on the flood risk listWD23 1BH: not on the flood risk listWD23 1BJ: not on the flood risk listWD23 1BL: not on the flood risk listWD23 1BN: not on the flood risk listWD23 1BP: not on the flood risk listWD23 1BT: not on the flood risk listWD23 1BU: not on the flood risk listWD23 1BW: not on the flood risk listWD23 1BX: not on the flood risk listWD23 1BY: not on the flood risk listWD23 1DA: not on the flood risk listWD23 1DB: not on the flood risk listWD23 1DD: not on the flood risk listWD23 1DE: not on the flood risk listWD23 1DF: not on the flood risk listWD23 1DG: not on the flood risk listWD23 1DH: not on the flood risk listWD23 1DJ: not on the flood risk listWD23 1DN: not on the flood risk listWD23 1DP: not on the flood risk listWD23 1DQ: not on the flood risk listWD23 1DS: not on the flood risk listWD23 1DT: not on the flood risk listWD23 1DU: not on the flood risk listWD23 1DW: not on the flood risk listWD23 1DY: not on the flood risk listWD23 1EA: not on the flood risk listWD23 1EB: not on the flood risk listWD23 1EE: not on the flood risk listWD23 1EF: not on the flood risk listWD23 1EH: not on the flood risk listWD23 1EJ: not on the flood risk listWD23 1EL: not on the flood risk listWD23 1EN: not on the flood risk listWD23 1EP: not on the flood risk listWD23 1EQ: not on the flood risk listWD23 1ER: not on the flood risk listWD23 1ES: not on the flood risk listWD23 1ET: not on the flood risk listWD23 1EU: not on the flood risk listWD23 1EX: not on the flood risk listWD23 1EY: not on the flood risk listWD23 1EZ: not on the flood risk listWD23 1FA: not on the flood risk listWD23 1FB: not on the flood risk listWD23 1FD: not on the flood risk listWD23 1FE: not on the flood risk listWD23 1FG: not on the flood risk listWD23 1FJ: not on the flood risk listWD23 1FL: not on the flood risk listWD23 1FN: not on the flood risk listWD23 1FQ: not on the flood risk listWD23 1FR: not on the flood risk listWD23 1FS: not on the flood risk listWD23 1FT: not on the flood risk listWD23 1FU: not on the flood risk listWD23 1FW: not on the flood risk listWD23 1FY: not on the flood risk listWD23 1GA: not on the flood risk listWD23 1GB: not on the flood risk listWD23 1GD: not on the flood risk listWD23 1GE: not on the flood risk listWD23 1GG: not on the flood risk listWD23 1GH: not on the flood risk listWD23 1GL: not on the flood risk listWD23 1GN: not on the flood risk listWD23 1GP: not on the flood risk listWD23 1GQ: not on the flood risk listWD23 1GR: not on the flood risk listWD23 1GS: not on the flood risk listWD23 1GT: not on the flood risk listWD23 1GW: not on the flood risk listWD23 1GX: not on the flood risk listWD23 1HA: not on the flood risk listWD23 1HB: not on the flood risk listWD23 1HD: not on the flood risk listWD23 1HE: not on the flood risk listWD23 1HF: not on the flood risk listWD23 1HG: not on the flood risk listWD23 1HH: not on the flood risk listWD23 1HJ: not on the flood risk listWD23 1HL: not on the flood risk listWD23 1HN: not on the flood risk listWD23 1HP: not on the flood risk listWD23 1HQ: not on the flood risk listWD23 1HR: not on the flood risk listWD23 1HS: not on the flood risk listWD23 1HT: not on the flood risk listWD23 1HU: not on the flood risk listWD23 1HW: not on the flood risk listWD23 1HX: not on the flood risk listWD23 1HY: not on the flood risk listWD23 1HZ: not on the flood risk listWD23 1JA: not on the flood risk listWD23 1JB: not on the flood risk listWD23 1JD: not on the flood risk listWD23 1JE: not on the flood risk listWD23 1JG: not on the flood risk listWD23 1JH: not on the flood risk listWD23 1JJ: not on the flood risk listWD23 1JL: not on the flood risk listWD23 1JN: not on the flood risk listWD23 1JP: not on the flood risk listWD23 1JQ: not on the flood risk listWD23 1JR: not on the flood risk listWD23 1JS: not on the flood risk listWD23 1JT: not on the flood risk listWD23 1JU: not on the flood risk listWD23 1JW: not on the flood risk listWD23 1JX: not on the flood risk listWD23 1JY: not on the flood risk listWD23 1JZ: not on the flood risk listWD23 1LA: not on the flood risk listWD23 1LB: not on the flood risk listWD23 1LD: not on the flood risk listWD23 1LE: not on the flood risk listWD23 1LF: not on the flood risk listWD23 1LG: not on the flood risk listWD23 1LH: not on the flood risk listWD23 1LJ: not on the flood risk listWD23 1LL: not on the flood risk listWD23 1LN: not on the flood risk listWD23 1LP: not on the flood risk listWD23 1LQ: not on the flood risk listWD23 1LR: not on the flood risk listWD23 1LS: not on the flood risk listWD23 1LT: not on the flood risk listWD23 1LU: not on the flood risk listWD23 1LW: not on the flood risk listWD23 1LX: not on the flood risk listWD23 1LZ: not on the flood risk listWD23 1NA: not on the flood risk listWD23 1NB: not on the flood risk listWD23 1ND: not on the flood risk listWD23 1NE: not on the flood risk listWD23 1NF: not on the flood risk listWD23 1NG: not on the flood risk listWD23 1NH: not on the flood risk listWD23 1NJ: not on the flood risk listWD23 1NL: not on the flood risk listWD23 1NN: not on the flood risk listWD23 1NP: not on the flood risk listWD23 1NQ: not on the flood risk listWD23 1NR: not on the flood risk listWD23 1NS: not on the flood risk listWD23 1NT: not on the flood risk listWD23 1NW: not on the flood risk listWD23 1NX: not on the flood risk listWD23 1NY: not on the flood risk listWD23 1NZ: not on the flood risk listWD23 1PA: not on the flood risk listWD23 1PB: not on the flood risk listWD23 1PD: not on the flood risk listWD23 1PE: not on the flood risk listWD23 1PF: not on the flood risk listWD23 1PG: not on the flood risk listWD23 1PH: not on the flood risk listWD23 1PJ: not on the flood risk listWD23 1PL: not on the flood risk listWD23 1PN: not on the flood risk listWD23 1PP: not on the flood risk listWD23 1PQ: not on the flood risk listWD23 1PR: not on the flood risk listWD23 1PS: not on the flood risk listWD23 1PT: not on the flood risk listWD23 1PU: not on the flood risk listWD23 1PW: not on the flood risk listWD23 1PX: not on the flood risk listWD23 1PZ: not on the flood risk listWD23 1QG: not on the flood risk listWD23 1QN: not on the flood risk listWD23 1QP: not on the flood risk listWD23 1QR: not on the flood risk listWD23 1QS: not on the flood risk listWD23 1QW: not on the flood risk listWD23 1RB: not on the flood risk listWD23 1RD: not on the flood risk listWD23 1RF: not on the flood risk listWD23 1SA: not on the flood risk listWD23 1SB: not on the flood risk listWD23 1SD: not on the flood risk listWD23 1SE: not on the flood risk listWD23 1SJ: not on the flood risk listWD23 1SL: not on the flood risk listWD23 1SN: not on the flood risk listWD23 1SP: not on the flood risk listWD23 1SQ: not on the flood risk listWD23 1SR: not on the flood risk listWD23 1SS: not on the flood risk listWD23 1ST: not on the flood risk listWD23 1SU: not on the flood risk listWD23 1TT: not on the flood risk listWD23 1XB: not on the flood risk listWD23 2AD: not on the flood risk listWD23 2AG: not on the flood risk listWD23 2AH: not on the flood risk listWD23 2AJ: not on the flood risk listWD23 2AL: not on the flood risk listWD23 2AN: not on the flood risk listWD23 2AQ: not on the flood risk listWD23 2AR: not on the flood risk listWD23 2AS: not on the flood risk listWD23 2AT: not on the flood risk listWD23 2AU: not on the flood risk listWD23 2AW: not on the flood risk listWD23 2AX: not on the flood risk listWD23 2BB: not on the flood risk listWD23 2BD: not on the flood risk listWD23 2BE: not on the flood risk listWD23 2BG: not on the flood risk listWD23 2BH: not on the flood risk listWD23 2BJ: not on the flood risk listWD23 2BL: not on the flood risk listWD23 2BN: not on the flood risk listWD23 2BP: not on the flood risk listWD23 2BQ: not on the flood risk listWD23 2BR: not on the flood risk listWD23 2BS: not on the flood risk listWD23 2BT: not on the flood risk listWD23 2BU: not on the flood risk listWD23 2BX: not on the flood risk listWD23 2BY: not on the flood risk listWD23 2DB: not on the flood risk listWD23 2DH: not on the flood risk listWD23 2DJ: not on the flood risk listWD23 2DL: not on the flood risk listWD23 2DN: not on the flood risk listWD23 2DP: not on the flood risk listWD23 2DR: not on the flood risk listWD23 2DS: not on the flood risk listWD23 2DT: not on the flood risk listWD23 2DU: not on the flood risk listWD23 2DW: not on the flood risk listWD23 2DX: not on the flood risk listWD23 2DY: not on the flood risk listWD23 2DZ: not on the flood risk listWD23 2EE: not on the flood risk listWD23 2EF: not on the flood risk listWD23 2EG: not on the flood risk listWD23 2EH: not on the flood risk listWD23 2EJ: not on the flood risk listWD23 2EN: not on the flood risk listWD23 2EQ: not on the flood risk listWD23 2ER: not on the flood risk listWD23 2ES: not on the flood risk listWD23 2ET: not on the flood risk listWD23 2EU: not on the flood risk listWD23 2EW: not on the flood risk listWD23 2EX: not on the flood risk listWD23 2EZ: not on the flood risk listWD23 2FD: not on the flood risk listWD23 2FF: not on the flood risk listWD23 2FG: not on the flood risk listWD23 2FH: not on the flood risk listWD23 2FJ: not on the flood risk listWD23 2FL: not on the flood risk listWD23 2FN: not on the flood risk listWD23 2FS: not on the flood risk listWD23 2FT: not on the flood risk listWD23 2FU: not on the flood risk listWD23 2FW: not on the flood risk listWD23 2FX: not on the flood risk listWD23 2FZ: not on the flood risk listWD23 2GB: not on the flood risk listWD23 2GE: not on the flood risk listWD23 2GF: not on the flood risk listWD23 2GG: not on the flood risk listWD23 2GH: not on the flood risk listWD23 2GJ: not on the flood risk listWD23 2GN: not on the flood risk listWD23 2GQ: not on the flood risk listWD23 2GR: not on the flood risk listWD23 2GS: not on the flood risk listWD23 2GT: not on the flood risk listWD23 2GU: not on the flood risk listWD23 2GW: not on the flood risk listWD23 2GY: not on the flood risk listWD23 2HA: not on the flood risk listWD23 2HB: not on the flood risk listWD23 2HD: not on the flood risk listWD23 2HH: not on the flood risk listWD23 2HN: not on the flood risk listWD23 2HW: not on the flood risk listWD23 2HY: not on the flood risk listWD23 2HZ: not on the flood risk listWD23 2JA: not on the flood risk listWD23 2JG: not on the flood risk listWD23 2JH: not on the flood risk listWD23 2JJ: not on the flood risk listWD23 2JL: not on the flood risk listWD23 2JN: not on the flood risk listWD23 2JP: not on the flood risk listWD23 2JQ: not on the flood risk listWD23 2JR: not on the flood risk listWD23 2JS: not on the flood risk listWD23 2JT: not on the flood risk listWD23 2JU: not on the flood risk listWD23 2JW: not on the flood risk listWD23 2JX: not on the flood risk listWD23 2JY: not on the flood risk listWD23 2LA: not on the flood risk listWD23 2LD: not on the flood risk listWD23 2LE: not on the flood risk listWD23 2LF: not on the flood risk listWD23 2LH: not on the flood risk listWD23 2LJ: not on the flood risk listWD23 2LL: not on the flood risk listWD23 2LN: not on the flood risk listWD23 2LP: not on the flood risk listWD23 2LQ: not on the flood risk listWD23 2LR: not on the flood risk listWD23 2LS: not on the flood risk listWD23 2LT: not on the flood risk listWD23 2LU: not on the flood risk listWD23 2LW: not on the flood risk listWD23 2LX: not on the flood risk listWD23 2LY: not on the flood risk listWD23 2LZ: not on the flood risk listWD23 2NA: not on the flood risk listWD23 2NB: not on the flood risk listWD23 2ND: not on the flood risk listWD23 2NE: not on the flood risk listWD23 2NF: not on the flood risk listWD23 2NG: not on the flood risk listWD23 2NN: not on the flood risk listWD23 2NR: not on the flood risk listWD23 2NU: not on the flood risk listWD23 2NW: not on the flood risk listWD23 2NX: not on the flood risk listWD23 2PG: not on the flood risk listWD23 2PH: not on the flood risk listWD23 2PL: not on the flood risk listWD23 2PN: not on the flood risk listWD23 2PP: not on the flood risk listWD23 2PR: not on the flood risk listWD23 2PS: not on the flood risk listWD23 2PU: not on the flood risk listWD23 2PW: not on the flood risk listWD23 2PX: not on the flood risk listWD23 2PY: not on the flood risk listWD23 2QA: not on the flood risk listWD23 2QB: not on the flood risk listWD23 2QE: not on the flood risk listWD23 2QG: not on the flood risk listWD23 2QH: not on the flood risk listWD23 2QL: not on the flood risk listWD23 2RA: not on the flood risk listWD23 2RB: not on the flood risk listWD23 2RE: not on the flood risk listWD23 2RF: not on the flood risk listWD23 2RG: not on the flood risk listWD23 2RH: not on the flood risk listWD23 2RJ: not on the flood risk listWD23 2RL: not on the flood risk listWD23 2RN: not on the flood risk listWD23 2RP: not on the flood risk listWD23 2RR: not on the flood risk listWD23 2RT: not on the flood risk listWD23 2RW: not on the flood risk listWD23 2TR: not on the flood risk listWD23 2TS: not on the flood risk listWD23 2TX: not on the flood risk listWD23 2TY: not on the flood risk listWD23 2TZ: not on the flood risk listWD23 2WX: not on the flood risk listWD23 3AA: not on the flood risk listWD23 3AB: not on the flood risk listWD23 3AD: not on the flood risk listWD23 3AE: not on the flood risk listWD23 3AF: not on the flood risk listWD23 3AH: not on the flood risk listWD23 3AJ: not on the flood risk listWD23 3AL: not on the flood risk listWD23 3AQ: not on the flood risk listWD23 3AS: not on the flood risk listWD23 3AT: not on the flood risk listWD23 3AW: not on the flood risk listWD23 3AY: not on the flood risk listWD23 3AZ: not on the flood risk listWD23 3BA: not on the flood risk listWD23 3BB: not on the flood risk listWD23 3BD: not on the flood risk listWD23 3BE: not on the flood risk listWD23 3BG: not on the flood risk listWD23 3BH: not on the flood risk listWD23 3BJ: not on the flood risk listWD23 3BL: not on the flood risk listWD23 3BN: not on the flood risk listWD23 3BP: not on the flood risk listWD23 3BS: not on the flood risk listWD23 3BT: not on the flood risk listWD23 3BW: not on the flood risk listWD23 3BX: not on the flood risk listWD23 3BY: not on the flood risk listWD23 3DE: not on the flood risk listWD23 3DF: not on the flood risk listWD23 3DG: not on the flood risk listWD23 3DH: not on the flood risk listWD23 3DJ: not on the flood risk listWD23 3DL: not on the flood risk listWD23 3DN: not on the flood risk listWD23 3DP: not on the flood risk listWD23 3DQ: not on the flood risk listWD23 3DR: not on the flood risk listWD23 3DS: not on the flood risk listWD23 3DT: not on the flood risk listWD23 3DU: not on the flood risk listWD23 3DX: not on the flood risk listWD23 3DY: not on the flood risk listWD23 3DZ: not on the flood risk listWD23 3EA: not on the flood risk listWD23 3EB: not on the flood risk listWD23 3ED: not on the flood risk listWD23 3EE: not on the flood risk listWD23 3EF: not on the flood risk listWD23 3EG: not on the flood risk listWD23 3EH: not on the flood risk listWD23 3EJ: not on the flood risk listWD23 3EL: not on the flood risk listWD23 3EN: not on the flood risk listWD23 3EP: not on the flood risk listWD23 3ER: not on the flood risk listWD23 3ES: not on the flood risk listWD23 3ET: not on the flood risk listWD23 3EU: not on the flood risk listWD23 3EW: not on the flood risk listWD23 3EX: not on the flood risk listWD23 3EY: not on the flood risk listWD23 3EZ: not on the flood risk listWD23 3FD: not on the flood risk listWD23 3FE: not on the flood risk listWD23 3FF: not on the flood risk listWD23 3FG: not on the flood risk listWD23 3FH: not on the flood risk listWD23 3FJ: not on the flood risk listWD23 3FL: not on the flood risk listWD23 3FN: not on the flood risk listWD23 3GZ: not on the flood risk listWD23 3HB: not on the flood risk listWD23 3HD: not on the flood risk listWD23 3HE: not on the flood risk listWD23 3HH: not on the flood risk listWD23 3HN: not on the flood risk listWD23 3HP: not on the flood risk listWD23 3HW: not on the flood risk listWD23 3JR: not on the flood risk listWD23 3JS: not on the flood risk listWD23 3JT: not on the flood risk listWD23 3JU: not on the flood risk listWD23 3LD: not on the flood risk listWD23 3LF: not on the flood risk listWD23 3LG: not on the flood risk listWD23 3LH: not on the flood risk listWD23 3LJ: not on the flood risk listWD23 3LL: not on the flood risk listWD23 3LN: not on the flood risk listWD23 3LP: not on the flood risk listWD23 3LR: not on the flood risk listWD23 3LS: not on the flood risk listWD23 3LT: not on the flood risk listWD23 3LU: not on the flood risk listWD23 3LW: not on the flood risk listWD23 3LX: not on the flood risk listWD23 3LY: not on the flood risk listWD23 3LZ: not on the flood risk listWD23 3NA: not on the flood risk listWD23 3ND: not on the flood risk listWD23 3NE: not on the flood risk listWD23 3NF: not on the flood risk listWD23 3NG: not on the flood risk listWD23 3NH: not on the flood risk listWD23 3NJ: not on the flood risk listWD23 3NL: not on the flood risk listWD23 3NN: not on the flood risk listWD23 3NP: not on the flood risk listWD23 3NQ: not on the flood risk listWD23 3PB: not on the flood risk listWD23 3PD: not on the flood risk listWD23 3PE: not on the flood risk listWD23 3PF: not on the flood risk listWD23 3PG: not on the flood risk listWD23 3PH: not on the flood risk listWD23 3PJ: not on the flood risk listWD23 3PL: not on the flood risk listWD23 3PN: not on the flood risk listWD23 3PP: not on the flood risk listWD23 3PQ: not on the flood risk listWD23 3PR: not on the flood risk listWD23 3PS: not on the flood risk listWD23 3PT: not on the flood risk listWD23 3PU: not on the flood risk listWD23 3PW: not on the flood risk listWD23 3PX: not on the flood risk listWD23 3PY: not on the flood risk listWD23 3RU: not on the flood risk listWD23 3RY: not on the flood risk listWD23 3SS: not on the flood risk listWD23 3ST: not on the flood risk listWD23 3SU: not on the flood risk listWD23 3SX: not on the flood risk listWD23 3SY: not on the flood risk listWD23 3SZ: not on the flood risk listWD23 3TA: not on the flood risk listWD23 3TB: not on the flood risk listWD23 3TD: not on the flood risk listWD23 3TH: not on the flood risk listWD23 3TP: not on the flood risk listWD23 3XW: not on the flood risk listWD23 4AA: not on the flood risk listWD23 4AB: not on the flood risk listWD23 4AD: not on the flood risk listWD23 4AE: not on the flood risk listWD23 4AF: not on the flood risk listWD23 4AG: not on the flood risk listWD23 4AH: not on the flood risk listWD23 4AJ: not on the flood risk listWD23 4DN: not on the flood risk listWD23 4DQ: not on the flood risk listWD23 4EB: not on the flood risk listWD23 4ED: not on the flood risk listWD23 4EE: not on the flood risk listWD23 4EF: not on the flood risk listWD23 4EG: not on the flood risk listWD23 4EH: not on the flood risk listWD23 4EJ: not on the flood risk listWD23 4EL: not on the flood risk listWD23 4FA: not on the flood risk listWD23 4FB: not on the flood risk listWD23 4FX: not on the flood risk listWD23 4FY: not on the flood risk listWD23 4FZ: not on the flood risk listWD23 4GA: not on the flood risk listWD23 4GB: not on the flood risk listWD23 4GD: not on the flood risk listWD23 4GE: not on the flood risk listWD23 4GF: not on the flood risk listWD23 4GG: not on the flood risk listWD23 4GH: not on the flood risk listWD23 4GJ: not on the flood risk listWD23 4GL: not on the flood risk listWD23 4GN: not on the flood risk listWD23 4GQ: not on the flood risk listWD23 4GR: not on the flood risk listWD23 4GS: not on the flood risk listWD23 4GT: not on the flood risk listWD23 4HG: not on the flood risk listWD23 4HH: not on the flood risk listWD23 4HJ: not on the flood risk listWD23 4HL: not on the flood risk listWD23 4HN: not on the flood risk listWD23 4HP: not on the flood risk listWD23 4HQ: not on the flood risk listWD23 4HR: not on the flood risk listWD23 4HS: not on the flood risk listWD23 4HT: not on the flood risk listWD23 4HU: not on the flood risk listWD23 4HW: not on the flood risk listWD23 4HX: not on the flood risk listWD23 4HY: not on the flood risk listWD23 4HZ: not on the flood risk listWD23 4JB: not on the flood risk listWD23 4JD: not on the flood risk listWD23 4JH: not on the flood risk listWD23 4JP: not on the flood risk listWD23 4JR: not on the flood risk listWD23 4JS: not on the flood risk listWD23 4JT: not on the flood risk listWD23 4JU: not on the flood risk listWD23 4JW: not on the flood risk listWD23 4JX: not on the flood risk listWD23 4JY: not on the flood risk listWD23 4JZ: not on the flood risk listWD23 4LA: not on the flood risk listWD23 4LB: not on the flood risk listWD23 4LD: not on the flood risk listWD23 4LE: not on the flood risk listWD23 4LF: not on the flood risk listWD23 4LG: not on the flood risk listWD23 4LH: not on the flood risk listWD23 4LJ: not on the flood risk listWD23 4LN: not on the flood risk listWD23 4LP: not on the flood risk listWD23 4LQ: not on the flood risk listWD23 4NN: not on the flood risk listWD23 4NP: not on the flood risk listWD23 4NQ: not on the flood risk listWD23 4NR: not on the flood risk listWD23 4NS: not on the flood risk listWD23 4NT: not on the flood risk listWD23 4NU: not on the flood risk listWD23 4NW: not on the flood risk listWD23 4NX: not on the flood risk listWD23 4NY: not on the flood risk listWD23 4PA: not on the flood risk listWD23 4PU: not on the flood risk listWD23 4PX: not on the flood risk listWD23 4PY: not on the flood risk listWD23 4PZ: not on the flood risk listWD23 4QA: not on the flood risk listWD23 4QB: not on the flood risk listWD23 4QD: not on the flood risk listWD23 4QE: not on the flood risk listWD23 4QF: not on the flood risk listWD23 4QG: not on the flood risk listWD23 4QH: not on the flood risk listWD23 4QJ: not on the flood risk listWD23 4QL: not on the flood risk listWD23 4QN: not on the flood risk listWD23 4QP: not on the flood risk listWD23 4QQ: not on the flood risk listWD23 4QS: not on the flood risk listWD23 4QT: not on the flood risk listWD23 4QW: not on the flood risk listWD23 4RA: not on the flood risk listWD23 4RD: not on the flood risk listWD23 4RE: not on the flood risk listWD23 4RF: not on the flood risk listWD23 4RG: not on the flood risk listWD23 4RH: not on the flood risk listWD23 4RN: not on the flood risk listWD23 4RP: not on the flood risk listWD23 4RQ: not on the flood risk listWD23 4RR: not on the flood risk listWD23 4RT: not on the flood risk listWD23 4RX: not on the flood risk listWD23 4SA: not on the flood risk listWD23 4SB: not on the flood risk listWD23 4SD: not on the flood risk listWD23 4SE: not on the flood risk listWD23 4SG: not on the flood risk listWD23 4SH: not on the flood risk listWD23 4SJ: not on the flood risk listWD23 4SL: not on the flood risk listWD23 4SN: not on the flood risk listWD23 4SP: not on the flood risk listWD23 4SQ: not on the flood risk listWD23 4SR: not on the flood risk listWD23 4SW: not on the flood risk listWD23 4TB: not on the flood risk listWD23 4TE: not on the flood risk listWD23 4TF: not on the flood risk listWD23 4TG: not on the flood risk listWD23 4TH: not on the flood risk listWD23 4TJ: not on the flood risk listWD23 4TU: not on the flood risk listWD23 4TW: not on the flood risk listWD23 4UA: not on the flood risk listWD23 4UB: not on the flood risk listWD23 4UD: not on the flood risk listWD23 4UF: not on the flood risk listWD23 4UG: not on the flood risk listWD23 4UH: not on the flood risk listWD23 4UJ: not on the flood risk listWD23 4UL: not on the flood risk listWD23 4UQ: not on the flood risk listWD23 4XA: not on the flood risk listWD23 4XF: not on the flood risk listWD23 4YF: not on the flood risk listWD23 2AF: low flood risk at worstWD23 2DE: low flood risk at worstWD23 2DF: low flood risk at worstWD23 2DQ: low flood risk at worstWD23 2FR: low flood risk at worstWD23 2HU: low flood risk at worstWD23 3AP: low flood risk at worstWD23 3AR: low flood risk at worstWD23 3AU: low flood risk at worstWD23 3AX: low flood risk at worstWD23 3FA: low flood risk at worstWD23 3NB: low flood risk at worstWD23 3NR: low flood risk at worstWD23 4FE: low flood risk at worstWD23 4NZ: low flood risk at worstWD23 2AB: medium flood risk at worstWD23 2AE: medium flood risk at worstWD23 2AY: medium flood risk at worstWD23 2BA: medium flood risk at worstWD23 2DA: medium flood risk at worstWD23 2DD: medium flood risk at worstWD23 2ED: medium flood risk at worstWD23 2GD: medium flood risk at worstWD23 2GZ: medium flood risk at worstWD23 2HF: medium flood risk at worstWD23 2HT: medium flood risk at worstWD23 2HX: medium flood risk at worstWD23 2NS: medium flood risk at worstWD23 4GP: medium flood risk at worstWD23 2EA: high flood riskWD23 2EB: high flood riskWD23 2FE: high flood riskWD23 2HL: high flood riskWD23 2HP: high flood riskWD23 2HR: high flood riskWD23 2HS: high flood riskWD23 2JD: high flood riskWD23 2JE: high flood riskWD23 2JF: high flood riskWD23 2NZ: high flood riskWD23 3TJ: high flood riskWD23 4QR: high flood risk Bushey 19 postcodes at high or medium risk, outlined: this goes to WD23 2HL, the one with most homes and businesses at high risk19 postcodes at high or medium risk Map of every postcode in WD23, by flood risk Of the 769 postcodes in WD23 that ONS places, 13 have a home or business at high risk, 14 are at medium risk at worst, 15 are at low risk at worst and 727 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 19 postcodes at high or medium risk. Places named: Bushey. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M1A4008 Bushey
  • A home or business at high risk: 13
  • At medium risk at worst: 14
  • At low risk at worst: 15
  • At very low risk only: 0
  • Not on the at-risk list: 727
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 769 postcodes in WD23 that ONS places, 13 have a home or business at high risk, 14 are at medium risk at worst, 15 are at low risk at worst and 727 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and 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 51.6453, longitude -0.3580. 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

13 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

WD23 2HL36 at high riskWD23 2FE30 at high riskWD23 2HS30 at high riskWD23 2EA21 at high riskWD23 3TJ13 at high riskWD23 2HR10 at high riskWD23 2JF7 at high riskWD23 2JD6 at high riskWD23 2NZ6 at high riskWD23 2JE3 at high riskWD23 2EB3 at high riskWD23 2HP1 at high risk

Where the postcodes at high or medium risk lie together

  • 19 postcodes at high or medium risk, outlined on the map. WD23 2HL, is the one with most homes and businesses at high risk.

What broadband can you get in WD23?

Ofcom reports on 733 of the 769 postcodes in WD23. At 625 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit625 of 733
Postcodes where every home can get superfast713 of 733

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 WD23 at risk of flooding?

42 of the 769 postcodes in WD23 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 361 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 42 of 769 postcodes High: 167Medium: 194Low: 141

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 WD23?

Homes in WD23 sold for a typical £550,000 in the 12 months to August 2026, across 285 sales, up 1.9% on the 12 months before, HM Land Registry's figures show.

£550,000 typical price, the 12 months to August 2026
12 months to August 2025
£540,000
12 months to August 2026
£550,000

▲ up 1.9% on the 12 months before

Detached£865,000 53 sales
Semi-detached£640,000 90 sales
Terraced£460,000 61 sales
Flat or maisonette£315,000 81 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 WD23

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

WD23 1222 postcodesWD23 2211 postcodesWD23 3156 postcodesWD23 4158 postcodesWD23 922 postcodes
UK postcode format explained

Places in WD23

Towns and villages with postcodes in WD23, and how many each has here.

Bushey postcodes,738Watford postcodes,16Harrow postcodes,3

Who covers WD23

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

  • Hertsmere586
  • Watford180
  • Harrow East3

Police force areas

  • Hertfordshire766
  • Metropolitan Police3

Next to WD23

WD19 postcode district WD24 postcode district All WD districts Bushey postcodes

"Next to" is by number: the districts before and after WD23 in the WD area.

Check a postcode

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