HP11 1 postcode sector in the HP11 district

HP11 1 is a sector of the HP11 district: every postcode that starts HP11 1. It has 262 postcodes in use, 12 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the HP11 1 sector, by flood risk

Map of every postcode in the HP11 1 sector, by flood risk Of the 262 postcodes in the HP11 1 sector that ONS places, 6 have a home or business at high risk, 4 are at medium risk at worst, 8 are at low risk at worst, 1 are at very low risk only and 243 are not on the Environment Agency's at-risk list. Places named: High Wycombe. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M40A404 HP11 1AA: not on the flood risk listHP11 1AB: not on the flood risk listHP11 1AD: not on the flood risk listHP11 1AE: not on the flood risk listHP11 1AG: not on the flood risk listHP11 1AJ: not on the flood risk listHP11 1AL: not on the flood risk listHP11 1AP: not on the flood risk listHP11 1AQ: not on the flood risk listHP11 1AR: not on the flood risk listHP11 1AS: not on the flood risk listHP11 1AT: not on the flood risk listHP11 1AW: not on the flood risk listHP11 1AX: not on the flood risk listHP11 1AY: not on the flood risk listHP11 1BA: not on the flood risk listHP11 1BD: not on the flood risk listHP11 1BF: not on the flood risk listHP11 1BH: not on the flood risk listHP11 1BL: not on the flood risk listHP11 1BN: not on the flood risk listHP11 1BP: not on the flood risk listHP11 1BQ: not on the flood risk listHP11 1BT: not on the flood risk listHP11 1BU: not on the flood risk listHP11 1BW: not on the flood risk listHP11 1BX: not on the flood risk listHP11 1BY: not on the flood risk listHP11 1DB: not on the flood risk listHP11 1DE: not on the flood risk listHP11 1DF: not on the flood risk listHP11 1DG: not on the flood risk listHP11 1DH: not on the flood risk listHP11 1DN: not on the flood risk listHP11 1DP: not on the flood risk listHP11 1DQ: not on the flood risk listHP11 1DR: not on the flood risk listHP11 1DS: not on the flood risk listHP11 1DT: not on the flood risk listHP11 1DU: not on the flood risk listHP11 1DW: not on the flood risk listHP11 1DX: not on the flood risk listHP11 1DY: not on the flood risk listHP11 1DZ: not on the flood risk listHP11 1EA: not on the flood risk listHP11 1EB: not on the flood risk listHP11 1ED: not on the flood risk listHP11 1EE: not on the flood risk listHP11 1EG: not on the flood risk listHP11 1EJ: not on the flood risk listHP11 1EL: not on the flood risk listHP11 1EN: not on the flood risk listHP11 1EP: not on the flood risk listHP11 1EQ: not on the flood risk listHP11 1ET: not on the flood risk listHP11 1EU: not on the flood risk listHP11 1EW: not on the flood risk listHP11 1EX: not on the flood risk listHP11 1EY: not on the flood risk listHP11 1EZ: not on the flood risk listHP11 1FA: not on the flood risk listHP11 1FB: not on the flood risk listHP11 1FD: not on the flood risk listHP11 1FF: not on the flood risk listHP11 1FG: not on the flood risk listHP11 1FJ: not on the flood risk listHP11 1FN: not on the flood risk listHP11 1FQ: not on the flood risk listHP11 1FU: not on the flood risk listHP11 1FW: not on the flood risk listHP11 1FY: not on the flood risk listHP11 1FZ: not on the flood risk listHP11 1GD: not on the flood risk listHP11 1GE: not on the flood risk listHP11 1GG: not on the flood risk listHP11 1GH: not on the flood risk listHP11 1GJ: not on the flood risk listHP11 1GL: not on the flood risk listHP11 1GN: not on the flood risk listHP11 1GP: not on the flood risk listHP11 1GQ: not on the flood risk listHP11 1GR: not on the flood risk listHP11 1GS: not on the flood risk listHP11 1GT: not on the flood risk listHP11 1GU: not on the flood risk listHP11 1GW: not on the flood risk listHP11 1GX: not on the flood risk listHP11 1GY: not on the flood risk listHP11 1GZ: not on the flood risk listHP11 1HA: not on the flood risk listHP11 1HB: not on the flood risk listHP11 1HD: not on the flood risk listHP11 1HE: not on the flood risk listHP11 1HF: not on the flood risk listHP11 1HG: not on the flood risk listHP11 1HH: not on the flood risk listHP11 1HJ: not on the flood risk listHP11 1HL: not on the flood risk listHP11 1HN: not on the flood risk listHP11 1HQ: not on the flood risk listHP11 1HR: not on the flood risk listHP11 1HT: not on the flood risk listHP11 1HU: not on the flood risk listHP11 1HW: not on the flood risk listHP11 1HX: not on the flood risk listHP11 1HY: not on the flood risk listHP11 1HZ: not on the flood risk listHP11 1JA: not on the flood risk listHP11 1JB: not on the flood risk listHP11 1JD: not on the flood risk listHP11 1JE: not on the flood risk listHP11 1JF: not on the flood risk listHP11 1JG: not on the flood risk listHP11 1JH: not on the flood risk listHP11 1JJ: not on the flood risk listHP11 1JN: not on the flood risk listHP11 1JP: not on the flood risk listHP11 1JQ: not on the flood risk listHP11 1JR: not on the flood risk listHP11 1JS: not on the flood risk listHP11 1JT: not on the flood risk listHP11 1JW: not on the flood risk listHP11 1JY: not on the flood risk listHP11 1JZ: not on the flood risk listHP11 1LB: not on the flood risk listHP11 1LD: not on the flood risk listHP11 1LE: not on the flood risk listHP11 1LH: not on the flood risk listHP11 1LJ: not on the flood risk listHP11 1LN: not on the flood risk listHP11 1LP: not on the flood risk listHP11 1LR: not on the flood risk listHP11 1LS: not on the flood risk listHP11 1NJ: not on the flood risk listHP11 1NL: not on the flood risk listHP11 1NN: not on the flood risk listHP11 1NQ: not on the flood risk listHP11 1NT: not on the flood risk listHP11 1NW: not on the flood risk listHP11 1NY: not on the flood risk listHP11 1NZ: not on the flood risk listHP11 1PA: not on the flood risk listHP11 1PH: not on the flood risk listHP11 1PL: not on the flood risk listHP11 1PN: not on the flood risk listHP11 1PP: not on the flood risk listHP11 1PT: not on the flood risk listHP11 1PU: not on the flood risk listHP11 1PW: not on the flood risk listHP11 1PX: not on the flood risk listHP11 1PY: not on the flood risk listHP11 1QD: not on the flood risk listHP11 1QE: not on the flood risk listHP11 1QF: not on the flood risk listHP11 1QG: not on the flood risk listHP11 1QH: not on the flood risk listHP11 1QJ: not on the flood risk listHP11 1QL: not on the flood risk listHP11 1QN: not on the flood risk listHP11 1QP: not on the flood risk listHP11 1QQ: not on the flood risk listHP11 1QR: not on the flood risk listHP11 1QS: not on the flood risk listHP11 1QT: not on the flood risk listHP11 1QW: not on the flood risk listHP11 1QY: not on the flood risk listHP11 1RB: not on the flood risk listHP11 1RD: not on the flood risk listHP11 1RE: not on the flood risk listHP11 1RF: not on the flood risk listHP11 1RG: not on the flood risk listHP11 1RH: not on the flood risk listHP11 1RJ: not on the flood risk listHP11 1RL: not on the flood risk listHP11 1RN: not on the flood risk listHP11 1RQ: not on the flood risk listHP11 1RS: not on the flood risk listHP11 1RT: not on the flood risk listHP11 1RU: not on the flood risk listHP11 1RX: not on the flood risk listHP11 1RY: not on the flood risk listHP11 1SA: not on the flood risk listHP11 1SF: not on the flood risk listHP11 1SG: not on the flood risk listHP11 1SJ: not on the flood risk listHP11 1SL: not on the flood risk listHP11 1SN: not on the flood risk listHP11 1SQ: not on the flood risk listHP11 1SR: not on the flood risk listHP11 1SS: not on the flood risk listHP11 1ST: not on the flood risk listHP11 1SW: not on the flood risk listHP11 1SX: not on the flood risk listHP11 1SY: not on the flood risk listHP11 1SZ: not on the flood risk listHP11 1TA: not on the flood risk listHP11 1TB: not on the flood risk listHP11 1TD: not on the flood risk listHP11 1TE: not on the flood risk listHP11 1TF: not on the flood risk listHP11 1TG: not on the flood risk listHP11 1TH: not on the flood risk listHP11 1TJ: not on the flood risk listHP11 1TL: not on the flood risk listHP11 1TN: not on the flood risk listHP11 1TP: not on the flood risk listHP11 1TQ: not on the flood risk listHP11 1TR: not on the flood risk listHP11 1TS: not on the flood risk listHP11 1TT: not on the flood risk listHP11 1TU: not on the flood risk listHP11 1TW: not on the flood risk listHP11 1TX: not on the flood risk listHP11 1TY: not on the flood risk listHP11 1UA: not on the flood risk listHP11 1UB: not on the flood risk listHP11 1UD: not on the flood risk listHP11 1UN: not on the flood risk listHP11 1UP: not on the flood risk listHP11 1UT: not on the flood risk listHP11 1UW: not on the flood risk listHP11 1UZ: not on the flood risk listHP11 1WN: not on the flood risk listHP11 1WP: not on the flood risk listHP11 1WQ: not on the flood risk listHP11 1WR: not on the flood risk listHP11 1WS: not on the flood risk listHP11 1WT: not on the flood risk listHP11 1XA: not on the flood risk listHP11 1XE: not on the flood risk listHP11 1XF: not on the flood risk listHP11 1XS: not on the flood risk listHP11 1SE: very low flood risk onlyHP11 1AN: low flood risk at worstHP11 1BJ: low flood risk at worstHP11 1JL: low flood risk at worstHP11 1JU: low flood risk at worstHP11 1JX: low flood risk at worstHP11 1LT: low flood risk at worstHP11 1QZ: low flood risk at worstHP11 1RW: low flood risk at worstHP11 1DJ: medium flood risk at worstHP11 1DL: medium flood risk at worstHP11 1QU: medium flood risk at worstHP11 1QX: medium flood risk at worstHP11 1BB: high flood riskHP11 1BE: high flood riskHP11 1BG: high flood riskHP11 1DD: high flood riskHP11 1PD: high flood riskHP11 1PE: high flood risk High Wycombe Map of every postcode in the HP11 1 sector, by flood risk Of the 262 postcodes in the HP11 1 sector that ONS places, 6 have a home or business at high risk, 4 are at medium risk at worst, 8 are at low risk at worst, 1 are at very low risk only and 243 are not on the Environment Agency's at-risk list. Places named: High Wycombe. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M40 High Wycombe
  • A home or business at high risk: 6
  • At medium risk at worst: 4
  • At low risk at worst: 8
  • At very low risk only: 1
  • Not on the at-risk list: 243

Of the 262 postcodes in the HP11 1 sector that ONS places, 6 have a home or business at high risk, 4 are at medium risk at worst, 8 are at low risk at worst, 1 are at very low risk only and 243 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.

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.

HP11 1PD10 at high riskHP11 1PE6 at high riskHP11 1BB5 at high riskHP11 1BE5 at high riskHP11 1BG3 at high riskHP11 1DD1 at high risk

What do homes sell for in HP11 1?

Homes in HP11 1 sold for a typical £340,000 in the 12 months to August 2026, across 104 sales, down 10.3% on the 12 months before, HM Land Registry's figures show.

£340,000 typical price, the 12 months to August 2026
£379,000 12 months to August 2025
▼ down 10.3% on the 12 months before
  • Detached £646,500 18 sales
  • Semi-detached £437,500 22 sales
  • Terraced £388,000 21 sales
  • Flat or maisonette £232,750 43 sales

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

Standard sales of homes at market value at the postcodes that start HP11 1. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

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 HP11 1

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

HP11 1AAHP11 1ABHP11 1ADHP11 1AEHP11 1AFHP11 1AGHP11 1AJHP11 1ALHP11 1ANHP11 1APHP11 1AQHP11 1ARHP11 1ASHP11 1ATHP11 1AUHP11 1AWHP11 1AXHP11 1AYHP11 1BAHP11 1BBHP11 1BDHP11 1BEHP11 1BFHP11 1BGHP11 1BHHP11 1BJHP11 1BLHP11 1BNHP11 1BPHP11 1BQHP11 1BTHP11 1BUHP11 1BWHP11 1BXHP11 1BYHP11 1DBHP11 1DDHP11 1DEHP11 1DFHP11 1DGHP11 1DHHP11 1DJHP11 1DLHP11 1DNHP11 1DPHP11 1DQHP11 1DRHP11 1DSHP11 1DTHP11 1DUHP11 1DWHP11 1DXHP11 1DYHP11 1DZHP11 1EAHP11 1EBHP11 1EDHP11 1EEHP11 1EGHP11 1EHHP11 1EJHP11 1ELHP11 1ENHP11 1EPHP11 1EQHP11 1ETHP11 1EUHP11 1EWHP11 1EXHP11 1EYHP11 1EZHP11 1FAHP11 1FBHP11 1FDHP11 1FFHP11 1FGHP11 1FJHP11 1FNHP11 1FQHP11 1FRHP11 1FUHP11 1FWHP11 1FYHP11 1FZHP11 1GDHP11 1GEHP11 1GFHP11 1GGHP11 1GHHP11 1GJHP11 1GLHP11 1GNHP11 1GPHP11 1GQHP11 1GRHP11 1GSHP11 1GTHP11 1GUHP11 1GWHP11 1GXHP11 1GYHP11 1GZHP11 1HAHP11 1HBHP11 1HDHP11 1HEHP11 1HFHP11 1HGHP11 1HHHP11 1HJHP11 1HLHP11 1HNHP11 1HQHP11 1HRHP11 1HTHP11 1HUHP11 1HWHP11 1HXHP11 1HYHP11 1HZHP11 1JAHP11 1JBHP11 1JDHP11 1JEHP11 1JFHP11 1JGHP11 1JHHP11 1JJHP11 1JLHP11 1JNHP11 1JPHP11 1JQHP11 1JRHP11 1JSHP11 1JTHP11 1JUHP11 1JWHP11 1JXHP11 1JYHP11 1JZHP11 1LBHP11 1LDHP11 1LEHP11 1LFHP11 1LHHP11 1LJHP11 1LNHP11 1LPHP11 1LQHP11 1LRHP11 1LSHP11 1LTHP11 1NAHP11 1NJHP11 1NLHP11 1NNHP11 1NQHP11 1NTHP11 1NWHP11 1NYHP11 1NZHP11 1PAHP11 1PDHP11 1PEHP11 1PHHP11 1PLHP11 1PNHP11 1PPHP11 1PTHP11 1PUHP11 1PWHP11 1PXHP11 1PYHP11 1QDHP11 1QEHP11 1QFHP11 1QGHP11 1QHHP11 1QJHP11 1QLHP11 1QNHP11 1QPHP11 1QQHP11 1QRHP11 1QSHP11 1QTHP11 1QUHP11 1QWHP11 1QXHP11 1QYHP11 1QZHP11 1RBHP11 1RDHP11 1REHP11 1RFHP11 1RGHP11 1RHHP11 1RJHP11 1RLHP11 1RNHP11 1RQHP11 1RRHP11 1RSHP11 1RTHP11 1RUHP11 1RWHP11 1RXHP11 1RYHP11 1RZHP11 1SAHP11 1SEHP11 1SFHP11 1SGHP11 1SJHP11 1SLHP11 1SNHP11 1SQHP11 1SRHP11 1SSHP11 1STHP11 1SWHP11 1SXHP11 1SYHP11 1SZHP11 1TAHP11 1TBHP11 1TDHP11 1TEHP11 1TFHP11 1TGHP11 1THHP11 1TJHP11 1TLHP11 1TNHP11 1TPHP11 1TQHP11 1TRHP11 1TSHP11 1TTHP11 1TUHP11 1TWHP11 1TXHP11 1TYHP11 1UAHP11 1UBHP11 1UDHP11 1UNHP11 1UPHP11 1UTHP11 1UWHP11 1UZHP11 1WNHP11 1WPHP11 1WQHP11 1WRHP11 1WSHP11 1WTHP11 1XAHP11 1XEHP11 1XFHP11 1XSHP11 1XT

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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