WD17 postcode district: Watford and around, Hertfordshire

WD17 is a postcode district in Hertfordshire, with 572 postcodes in use in 4 sectors. It has postcodes in Watford. Its council is Watford.

Postcodes in use
572
Sectors
4
Council
Watford
Places
Watford

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

Every postcode in WD17, by flood risk

Map of every postcode in WD17, by flood risk Of the 572 postcodes in WD17 that ONS places, 9 have a home or business at high risk, 15 are at medium risk at worst, 2 are at low risk at worst and 546 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 16 postcodes at high or medium risk. Places named: Watford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A4008M25 WD17 1AA: not on the flood risk listWD17 1AH: not on the flood risk listWD17 1AP: not on the flood risk listWD17 1AR: not on the flood risk listWD17 1AU: not on the flood risk listWD17 1AW: not on the flood risk listWD17 1AY: not on the flood risk listWD17 1AZ: not on the flood risk listWD17 1BA: not on the flood risk listWD17 1BH: not on the flood risk listWD17 1BJ: not on the flood risk listWD17 1BN: not on the flood risk listWD17 1BP: not on the flood risk listWD17 1BS: not on the flood risk listWD17 1BU: not on the flood risk listWD17 1BY: not on the flood risk listWD17 1BZ: not on the flood risk listWD17 1DA: not on the flood risk listWD17 1DB: not on the flood risk listWD17 1DD: not on the flood risk listWD17 1DF: not on the flood risk listWD17 1DG: not on the flood risk listWD17 1DH: not on the flood risk listWD17 1DJ: not on the flood risk listWD17 1DS: not on the flood risk listWD17 1DT: not on the flood risk listWD17 1DU: not on the flood risk listWD17 1DY: not on the flood risk listWD17 1EA: not on the flood risk listWD17 1EE: not on the flood risk listWD17 1EG: not on the flood risk listWD17 1ES: not on the flood risk listWD17 1ET: not on the flood risk listWD17 1HE: not on the flood risk listWD17 1HP: not on the flood risk listWD17 1JA: not on the flood risk listWD17 1JJ: not on the flood risk listWD17 1JR: not on the flood risk listWD17 1JU: not on the flood risk listWD17 1JW: not on the flood risk listWD17 1JY: not on the flood risk listWD17 1JZ: not on the flood risk listWD17 1LA: not on the flood risk listWD17 1LB: not on the flood risk listWD17 1LJ: not on the flood risk listWD17 1LN: not on the flood risk listWD17 1LQ: not on the flood risk listWD17 1LS: not on the flood risk listWD17 1LU: not on the flood risk listWD17 1NA: not on the flood risk listWD17 1NB: not on the flood risk listWD17 1NJ: not on the flood risk listWD17 1NN: not on the flood risk listWD17 1NP: not on the flood risk listWD17 1PA: not on the flood risk listWD17 1PB: not on the flood risk listWD17 1PD: not on the flood risk listWD17 1PE: not on the flood risk listWD17 1PG: not on the flood risk listWD17 1PT: not on the flood risk listWD17 1PU: not on the flood risk listWD17 1PW: not on the flood risk listWD17 1PY: not on the flood risk listWD17 1PZ: not on the flood risk listWD17 1QA: not on the flood risk listWD17 1QB: not on the flood risk listWD17 1QD: not on the flood risk listWD17 1QE: not on the flood risk listWD17 1QF: not on the flood risk listWD17 1QG: not on the flood risk listWD17 1QL: not on the flood risk listWD17 1QN: not on the flood risk listWD17 1QQ: not on the flood risk listWD17 1QR: not on the flood risk listWD17 1QS: not on the flood risk listWD17 1QT: not on the flood risk listWD17 1QU: not on the flood risk listWD17 1QW: not on the flood risk listWD17 1QX: not on the flood risk listWD17 1RA: not on the flood risk listWD17 1RB: not on the flood risk listWD17 1RD: not on the flood risk listWD17 1RL: not on the flood risk listWD17 1RN: not on the flood risk listWD17 1RP: not on the flood risk listWD17 1RT: not on the flood risk listWD17 1RY: not on the flood risk listWD17 1SJ: not on the flood risk listWD17 1SZ: not on the flood risk listWD17 1TX: not on the flood risk listWD17 1UE: not on the flood risk listWD17 2AA: not on the flood risk listWD17 2AB: not on the flood risk listWD17 2AD: not on the flood risk listWD17 2AE: not on the flood risk listWD17 2AF: not on the flood risk listWD17 2AG: not on the flood risk listWD17 2AH: not on the flood risk listWD17 2AJ: not on the flood risk listWD17 2AP: not on the flood risk listWD17 2AQ: not on the flood risk listWD17 2AT: not on the flood risk listWD17 2AU: not on the flood risk listWD17 2AW: not on the flood risk listWD17 2BB: not on the flood risk listWD17 2BE: not on the flood risk listWD17 2BJ: not on the flood risk listWD17 2BP: not on the flood risk listWD17 2BS: not on the flood risk listWD17 2BT: not on the flood risk listWD17 2BU: not on the flood risk listWD17 2BW: not on the flood risk listWD17 2DB: not on the flood risk listWD17 2DH: not on the flood risk listWD17 2DJ: not on the flood risk listWD17 2DN: not on the flood risk listWD17 2DQ: not on the flood risk listWD17 2DT: not on the flood risk listWD17 2EG: not on the flood risk listWD17 2EH: not on the flood risk listWD17 2EJ: not on the flood risk listWD17 2EN: not on the flood risk listWD17 2EP: not on the flood risk listWD17 2ET: not on the flood risk listWD17 2EU: not on the flood risk listWD17 2EX: not on the flood risk listWD17 2FF: not on the flood risk listWD17 2HA: not on the flood risk listWD17 2HF: not on the flood risk listWD17 2HS: not on the flood risk listWD17 2JD: not on the flood risk listWD17 2JR: not on the flood risk listWD17 2LA: not on the flood risk listWD17 2LH: not on the flood risk listWD17 2LQ: not on the flood risk listWD17 2LW: not on the flood risk listWD17 2LX: not on the flood risk listWD17 2LZ: not on the flood risk listWD17 2NB: not on the flood risk listWD17 2NT: not on the flood risk listWD17 2NU: not on the flood risk listWD17 2NW: not on the flood risk listWD17 2NX: not on the flood risk listWD17 2NY: not on the flood risk listWD17 2PB: not on the flood risk listWD17 2PD: not on the flood risk listWD17 2PE: not on the flood risk listWD17 2PJ: not on the flood risk listWD17 2PQ: not on the flood risk listWD17 2PS: not on the flood risk listWD17 2PT: not on the flood risk listWD17 2PU: not on the flood risk listWD17 2PY: not on the flood risk listWD17 2QA: not on the flood risk listWD17 2QB: not on the flood risk listWD17 2QD: not on the flood risk listWD17 2QE: not on the flood risk listWD17 2QF: not on the flood risk listWD17 2QG: not on the flood risk listWD17 2QH: not on the flood risk listWD17 2QL: not on the flood risk listWD17 2QN: not on the flood risk listWD17 2QP: not on the flood risk listWD17 2QQ: not on the flood risk listWD17 2QR: not on the flood risk listWD17 2QS: not on the flood risk listWD17 2QT: not on the flood risk listWD17 2QU: not on the flood risk listWD17 2QW: not on the flood risk listWD17 2QX: not on the flood risk listWD17 2QY: not on the flood risk listWD17 2QZ: not on the flood risk listWD17 2RA: not on the flood risk listWD17 2RB: not on the flood risk listWD17 2RD: not on the flood risk listWD17 2RH: not on the flood risk listWD17 2RT: not on the flood risk listWD17 2TA: not on the flood risk listWD17 2TD: not on the flood risk listWD17 2TE: not on the flood risk listWD17 2TF: not on the flood risk listWD17 2TJ: not on the flood risk listWD17 2TQ: not on the flood risk listWD17 2UE: not on the flood risk listWD17 3AA: not on the flood risk listWD17 3AB: not on the flood risk listWD17 3AD: not on the flood risk listWD17 3AE: not on the flood risk listWD17 3AF: not on the flood risk listWD17 3AG: not on the flood risk listWD17 3AH: not on the flood risk listWD17 3AJ: not on the flood risk listWD17 3AL: not on the flood risk listWD17 3AN: not on the flood risk listWD17 3AP: not on the flood risk listWD17 3AQ: not on the flood risk listWD17 3AS: not on the flood risk listWD17 3AT: not on the flood risk listWD17 3AU: not on the flood risk listWD17 3AW: not on the flood risk listWD17 3AX: not on the flood risk listWD17 3AY: not on the flood risk listWD17 3AZ: not on the flood risk listWD17 3BA: not on the flood risk listWD17 3BB: not on the flood risk listWD17 3BD: not on the flood risk listWD17 3BE: not on the flood risk listWD17 3BG: not on the flood risk listWD17 3BH: not on the flood risk listWD17 3BJ: not on the flood risk listWD17 3BL: not on the flood risk listWD17 3BN: not on the flood risk listWD17 3BP: not on the flood risk listWD17 3BQ: not on the flood risk listWD17 3BT: not on the flood risk listWD17 3BU: not on the flood risk listWD17 3BW: not on the flood risk listWD17 3BX: not on the flood risk listWD17 3BY: not on the flood risk listWD17 3BZ: not on the flood risk listWD17 3DA: not on the flood risk listWD17 3DB: not on the flood risk listWD17 3DD: not on the flood risk listWD17 3DE: not on the flood risk listWD17 3DF: not on the flood risk listWD17 3DG: not on the flood risk listWD17 3DH: not on the flood risk listWD17 3DJ: not on the flood risk listWD17 3DL: not on the flood risk listWD17 3DN: not on the flood risk listWD17 3DP: not on the flood risk listWD17 3DQ: not on the flood risk listWD17 3DR: not on the flood risk listWD17 3DS: not on the flood risk listWD17 3DT: not on the flood risk listWD17 3DU: not on the flood risk listWD17 3DW: not on the flood risk listWD17 3DX: not on the flood risk listWD17 3DY: not on the flood risk listWD17 3EA: not on the flood risk listWD17 3EB: not on the flood risk listWD17 3ED: not on the flood risk listWD17 3EE: not on the flood risk listWD17 3EF: not on the flood risk listWD17 3EG: not on the flood risk listWD17 3EH: not on the flood risk listWD17 3EJ: not on the flood risk listWD17 3EL: not on the flood risk listWD17 3EQ: not on the flood risk listWD17 3EU: not on the flood risk listWD17 3EW: not on the flood risk listWD17 3EX: not on the flood risk listWD17 3EY: not on the flood risk listWD17 3EZ: not on the flood risk listWD17 3FA: not on the flood risk listWD17 3FB: not on the flood risk listWD17 3HA: not on the flood risk listWD17 3HD: not on the flood risk listWD17 3HE: not on the flood risk listWD17 3HF: not on the flood risk listWD17 3HG: not on the flood risk listWD17 3HH: not on the flood risk listWD17 3HJ: not on the flood risk listWD17 3HL: not on the flood risk listWD17 3HW: not on the flood risk listWD17 3JL: not on the flood risk listWD17 3LA: not on the flood risk listWD17 3LB: not on the flood risk listWD17 3LD: not on the flood risk listWD17 3LN: not on the flood risk listWD17 3NB: not on the flood risk listWD17 3NN: not on the flood risk listWD17 3NU: not on the flood risk listWD17 3PA: not on the flood risk listWD17 3PB: not on the flood risk listWD17 3PD: not on the flood risk listWD17 3PE: not on the flood risk listWD17 3PH: not on the flood risk listWD17 3RL: not on the flood risk listWD17 3TT: not on the flood risk listWD17 3TY: not on the flood risk listWD17 3XE: not on the flood risk listWD17 4AJ: not on the flood risk listWD17 4AN: not on the flood risk listWD17 4AP: not on the flood risk listWD17 4AQ: not on the flood risk listWD17 4AS: not on the flood risk listWD17 4AT: not on the flood risk listWD17 4AX: not on the flood risk listWD17 4AY: not on the flood risk listWD17 4BN: not on the flood risk listWD17 4BP: not on the flood risk listWD17 4BQ: not on the flood risk listWD17 4BS: not on the flood risk listWD17 4BT: not on the flood risk listWD17 4BU: not on the flood risk listWD17 4BW: not on the flood risk listWD17 4BX: not on the flood risk listWD17 4BY: not on the flood risk listWD17 4BZ: not on the flood risk listWD17 4DD: not on the flood risk listWD17 4DE: not on the flood risk listWD17 4DF: not on the flood risk listWD17 4DH: not on the flood risk listWD17 4DJ: not on the flood risk listWD17 4DL: not on the flood risk listWD17 4DP: not on the flood risk listWD17 4DQ: not on the flood risk listWD17 4DR: not on the flood risk listWD17 4DS: not on the flood risk listWD17 4DT: not on the flood risk listWD17 4DU: not on the flood risk listWD17 4DW: not on the flood risk listWD17 4DX: not on the flood risk listWD17 4DY: not on the flood risk listWD17 4DZ: not on the flood risk listWD17 4EB: not on the flood risk listWD17 4ED: not on the flood risk listWD17 4EJ: not on the flood risk listWD17 4EL: not on the flood risk listWD17 4EN: not on the flood risk listWD17 4EP: not on the flood risk listWD17 4ER: not on the flood risk listWD17 4EW: not on the flood risk listWD17 4FH: not on the flood risk listWD17 4FJ: not on the flood risk listWD17 4FL: not on the flood risk listWD17 4FR: not on the flood risk listWD17 4GD: not on the flood risk listWD17 4GE: not on the flood risk listWD17 4HP: not on the flood risk listWD17 4HQ: not on the flood risk listWD17 4HR: not on the flood risk listWD17 4HS: not on the flood risk listWD17 4HT: not on the flood risk listWD17 4HU: not on the flood risk listWD17 4HW: not on the flood risk listWD17 4HX: not on the flood risk listWD17 4HY: not on the flood risk listWD17 4HZ: not on the flood risk listWD17 4JA: not on the flood risk listWD17 4JB: not on the flood risk listWD17 4JE: not on the flood risk listWD17 4JF: not on the flood risk listWD17 4JG: not on the flood risk listWD17 4JH: not on the flood risk listWD17 4JJ: not on the flood risk listWD17 4JL: not on the flood risk listWD17 4JN: not on the flood risk listWD17 4JP: not on the flood risk listWD17 4JQ: not on the flood risk listWD17 4JR: not on the flood risk listWD17 4JT: not on the flood risk listWD17 4JU: not on the flood risk listWD17 4JW: not on the flood risk listWD17 4JX: not on the flood risk listWD17 4JY: not on the flood risk listWD17 4JZ: not on the flood risk listWD17 4LA: not on the flood risk listWD17 4LB: not on the flood risk listWD17 4LD: not on the flood risk listWD17 4LE: not on the flood risk listWD17 4LF: not on the flood risk listWD17 4LG: not on the flood risk listWD17 4LH: not on the flood risk listWD17 4LJ: not on the flood risk listWD17 4LL: not on the flood risk listWD17 4LN: not on the flood risk listWD17 4LP: not on the flood risk listWD17 4LQ: not on the flood risk listWD17 4LR: not on the flood risk listWD17 4LU: not on the flood risk listWD17 4LW: not on the flood risk listWD17 4LX: not on the flood risk listWD17 4LY: not on the flood risk listWD17 4LZ: not on the flood risk listWD17 4NA: not on the flood risk listWD17 4NP: not on the flood risk listWD17 4NQ: not on the flood risk listWD17 4NR: not on the flood risk listWD17 4NS: not on the flood risk listWD17 4NT: not on the flood risk listWD17 4NU: not on the flood risk listWD17 4NW: not on the flood risk listWD17 4NX: not on the flood risk listWD17 4NY: not on the flood risk listWD17 4NZ: not on the flood risk listWD17 4PA: not on the flood risk listWD17 4PB: not on the flood risk listWD17 4PD: not on the flood risk listWD17 4PE: not on the flood risk listWD17 4PF: not on the flood risk listWD17 4PG: not on the flood risk listWD17 4PH: not on the flood risk listWD17 4PJ: not on the flood risk listWD17 4PL: not on the flood risk listWD17 4PN: not on the flood risk listWD17 4PP: not on the flood risk listWD17 4PQ: not on the flood risk listWD17 4PR: not on the flood risk listWD17 4PS: not on the flood risk listWD17 4PT: not on the flood risk listWD17 4PU: not on the flood risk listWD17 4PW: not on the flood risk listWD17 4PX: not on the flood risk listWD17 4PY: not on the flood risk listWD17 4PZ: not on the flood risk listWD17 4QB: not on the flood risk listWD17 4QD: not on the flood risk listWD17 4QE: not on the flood risk listWD17 4QF: not on the flood risk listWD17 4QG: not on the flood risk listWD17 4QH: not on the flood risk listWD17 4QJ: not on the flood risk listWD17 4QL: not on the flood risk listWD17 4QN: not on the flood risk listWD17 4QP: not on the flood risk listWD17 4QQ: not on the flood risk listWD17 4QR: not on the flood risk listWD17 4QS: not on the flood risk listWD17 4QT: not on the flood risk listWD17 4QU: not on the flood risk listWD17 4QX: not on the flood risk listWD17 4QY: not on the flood risk listWD17 4QZ: not on the flood risk listWD17 4RA: not on the flood risk listWD17 4RB: not on the flood risk listWD17 4RD: not on the flood risk listWD17 4RE: not on the flood risk listWD17 4RG: not on the flood risk listWD17 4RJ: not on the flood risk listWD17 4RL: not on the flood risk listWD17 4RN: not on the flood risk listWD17 4RP: not on the flood risk listWD17 4RR: not on the flood risk listWD17 4RT: not on the flood risk listWD17 4RU: not on the flood risk listWD17 4RW: not on the flood risk listWD17 4RX: not on the flood risk listWD17 4RY: not on the flood risk listWD17 4RZ: not on the flood risk listWD17 4SA: not on the flood risk listWD17 4SB: not on the flood risk listWD17 4SD: not on the flood risk listWD17 4SE: not on the flood risk listWD17 4SF: not on the flood risk listWD17 4SG: not on the flood risk listWD17 4SH: not on the flood risk listWD17 4SJ: not on the flood risk listWD17 4SL: not on the flood risk listWD17 4SN: not on the flood risk listWD17 4SP: not on the flood risk listWD17 4SQ: not on the flood risk listWD17 4SR: not on the flood risk listWD17 4SS: not on the flood risk listWD17 4ST: not on the flood risk listWD17 4SU: not on the flood risk listWD17 4SW: not on the flood risk listWD17 4SX: not on the flood risk listWD17 4SY: not on the flood risk listWD17 4SZ: not on the flood risk listWD17 4TA: not on the flood risk listWD17 4TD: not on the flood risk listWD17 4TE: not on the flood risk listWD17 4TG: not on the flood risk listWD17 4TH: not on the flood risk listWD17 4TJ: not on the flood risk listWD17 4TL: not on the flood risk listWD17 4TN: not on the flood risk listWD17 4TQ: not on the flood risk listWD17 4TW: not on the flood risk listWD17 4TZ: not on the flood risk listWD17 4UA: not on the flood risk listWD17 4UD: not on the flood risk listWD17 4UE: not on the flood risk listWD17 4UH: not on the flood risk listWD17 4UJ: not on the flood risk listWD17 4UL: not on the flood risk listWD17 4UU: not on the flood risk listWD17 4UW: not on the flood risk listWD17 4UZ: not on the flood risk listWD17 4WE: not on the flood risk listWD17 4WJ: not on the flood risk listWD17 4WN: not on the flood risk listWD17 4WP: not on the flood risk listWD17 4WU: not on the flood risk listWD17 4XA: not on the flood risk listWD17 4XB: not on the flood risk listWD17 4XD: not on the flood risk listWD17 4YA: not on the flood risk listWD17 4YB: not on the flood risk listWD17 4YE: not on the flood risk listWD17 4YJ: not on the flood risk listWD17 4YN: not on the flood risk listWD17 4YP: not on the flood risk listWD17 4YS: not on the flood risk listWD17 4YT: not on the flood risk listWD17 4YW: not on the flood risk listWD17 4YX: not on the flood risk listWD17 3AR: low flood risk at worstWD17 3HN: low flood risk at worstWD17 2BD: medium flood risk at worstWD17 2HN: medium flood risk at worstWD17 2HU: medium flood risk at worstWD17 2HW: medium flood risk at worstWD17 2HX: medium flood risk at worstWD17 2HY: medium flood risk at worstWD17 2HZ: medium flood risk at worstWD17 2JG: medium flood risk at worstWD17 2JH: medium flood risk at worstWD17 2JJ: medium flood risk at worstWD17 2JP: medium flood risk at worstWD17 2JX: medium flood risk at worstWD17 2JZ: medium flood risk at worstWD17 2SF: medium flood risk at worstWD17 2NH: high flood riskWD17 2NJ: high flood riskWD17 2RE: high flood riskWD17 2RG: high flood riskWD17 2RQ: high flood riskWD17 2SB: high flood riskWD17 2SD: high flood riskWD17 3NL: high flood riskWD17 3TU: high flood risk Watford 16 postcodes at high or medium risk, outlined: this goes to WD17 2SD, the one with most homes and businesses at high risk16 postcodes at high or medium risk Map of every postcode in WD17, by flood risk Of the 572 postcodes in WD17 that ONS places, 9 have a home or business at high risk, 15 are at medium risk at worst, 2 are at low risk at worst and 546 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 16 postcodes at high or medium risk. Places named: Watford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A4145A412A41 Watford
  • A home or business at high risk: 9
  • At medium risk at worst: 15
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 546
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 572 postcodes in WD17 that ONS places, 9 have a home or business at high risk, 15 are at medium risk at worst, 2 are at low risk at worst and 546 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 51.6639, longitude -0.4056. 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.

WD17 2SB32 at high riskWD17 2RQ6 at high riskWD17 3TU4 at high riskWD17 2NJ3 at high riskWD17 3NL3 at high riskWD17 2RE2 at high riskWD17 2RG1 at high riskWD17 2SD1 at high riskWD17 2NH1 at high risk

Where the postcodes at high or medium risk lie together

  • 16 postcodes at high or medium risk, outlined on the map. WD17 2SD, is the one with most homes and businesses at high risk.

What broadband can you get in WD17?

Ofcom reports on 545 of the 572 postcodes in WD17. At 471 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit471 of 545
Postcodes where every home can get superfast526 of 545

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 WD17 at risk of flooding?

26 of the 572 postcodes in WD17 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 180 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 26 of 572 postcodes High: 53Medium: 127Low: 59Very low: 1

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 WD17?

Homes in WD17 sold for a typical £417,000 in the 12 months to August 2026, across 192 sales, up 4.3% on the 12 months before, HM Land Registry's figures show.

£417,000 typical price, the 12 months to August 2026
£400,000 12 months to August 2025
▲ up 4.3% on the 12 months before
  • Detached £1,020,000 49 sales
  • Semi-detached £850,000 21 sales
  • Terraced £418,000 37 sales
  • Flat or maisonette £270,000 85 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 WD17

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

WD17 1106 postcodesWD17 2133 postcodesWD17 3109 postcodesWD17 4224 postcodes
UK postcode format explained

Places in WD17

Towns and villages with postcodes in WD17, and how many each has here.

Watford postcodes,571

Who covers WD17

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

  • Watford572

Police force areas

  • Hertfordshire572

Next to WD17

WD7 postcode district WD18 postcode district All WD districts Watford postcodes

"Next to" is by number: the districts before and after WD17 in the WD area.

Check a postcode

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