HP11 postcode district: High Wycombe and around, Buckinghamshire

HP11 is a postcode district in England, with 492 postcodes in use in 3 sectors. It has postcodes in High Wycombe and Flackwell Heath and Wooburn Green. Its council is Buckinghamshire.

Postcodes in use
492
Sectors
3
Council
Buckinghamshire
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 HP11, by flood risk

Map of every postcode in HP11, by flood risk Of the 492 postcodes in HP11 that ONS places, 25 have a home or business at high risk, 4 are at medium risk at worst, 42 are at low risk at worst, 1 are at very low risk only and 420 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 22 postcodes at high or medium risk. 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 1GF: 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 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 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 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 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 1RR: 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 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 2AD: not on the flood risk listHP11 2AP: not on the flood risk listHP11 2AT: not on the flood risk listHP11 2BE: not on the flood risk listHP11 2BH: not on the flood risk listHP11 2DN: not on the flood risk listHP11 2DQ: not on the flood risk listHP11 2DX: not on the flood risk listHP11 2DZ: not on the flood risk listHP11 2EB: not on the flood risk listHP11 2ET: not on the flood risk listHP11 2FA: not on the flood risk listHP11 2FE: not on the flood risk listHP11 2FG: not on the flood risk listHP11 2FN: not on the flood risk listHP11 2FQ: not on the flood risk listHP11 2FS: not on the flood risk listHP11 2FU: not on the flood risk listHP11 2FW: not on the flood risk listHP11 2FX: not on the flood risk listHP11 2FZ: not on the flood risk listHP11 2GG: not on the flood risk listHP11 2GQ: not on the flood risk listHP11 2GY: not on the flood risk listHP11 2HB: not on the flood risk listHP11 2HJ: not on the flood risk listHP11 2HZ: not on the flood risk listHP11 2JA: not on the flood risk listHP11 2JE: not on the flood risk listHP11 2JF: not on the flood risk listHP11 2JG: not on the flood risk listHP11 2JH: not on the flood risk listHP11 2JJ: not on the flood risk listHP11 2JL: not on the flood risk listHP11 2JN: not on the flood risk listHP11 2JP: not on the flood risk listHP11 2JQ: not on the flood risk listHP11 2JR: not on the flood risk listHP11 2JS: not on the flood risk listHP11 2JU: not on the flood risk listHP11 2JW: not on the flood risk listHP11 2LB: not on the flood risk listHP11 2LE: not on the flood risk listHP11 2LF: not on the flood risk listHP11 2LG: not on the flood risk listHP11 2LH: not on the flood risk listHP11 2LJ: not on the flood risk listHP11 2LP: not on the flood risk listHP11 2LR: not on the flood risk listHP11 2LT: not on the flood risk listHP11 2LW: not on the flood risk listHP11 2LZ: not on the flood risk listHP11 2NE: not on the flood risk listHP11 2NJ: not on the flood risk listHP11 2PA: not on the flood risk listHP11 2PG: not on the flood risk listHP11 2PH: not on the flood risk listHP11 2PL: not on the flood risk listHP11 2PN: not on the flood risk listHP11 2PQ: not on the flood risk listHP11 2PY: not on the flood risk listHP11 2QE: not on the flood risk listHP11 2QF: not on the flood risk listHP11 2QL: not on the flood risk listHP11 2QN: not on the flood risk listHP11 2QQ: not on the flood risk listHP11 2QT: not on the flood risk listHP11 2QU: not on the flood risk listHP11 2QW: not on the flood risk listHP11 2QY: not on the flood risk listHP11 2RA: not on the flood risk listHP11 2RB: not on the flood risk listHP11 2RD: not on the flood risk listHP11 2RF: not on the flood risk listHP11 2RG: not on the flood risk listHP11 2RH: not on the flood risk listHP11 2RL: not on the flood risk listHP11 2RN: not on the flood risk listHP11 2RQ: not on the flood risk listHP11 2RW: not on the flood risk listHP11 2RZ: not on the flood risk listHP11 2SA: not on the flood risk listHP11 2SD: not on the flood risk listHP11 2SE: not on the flood risk listHP11 2SF: not on the flood risk listHP11 2SG: not on the flood risk listHP11 2SH: not on the flood risk listHP11 2SN: not on the flood risk listHP11 2SQ: not on the flood risk listHP11 2SR: not on the flood risk listHP11 2SS: not on the flood risk listHP11 2ST: not on the flood risk listHP11 2SU: not on the flood risk listHP11 2SW: not on the flood risk listHP11 2SX: not on the flood risk listHP11 2SZ: not on the flood risk listHP11 2TB: not on the flood risk listHP11 2TD: not on the flood risk listHP11 2TG: not on the flood risk listHP11 2TH: not on the flood risk listHP11 2TJ: not on the flood risk listHP11 2TL: not on the flood risk listHP11 2TN: not on the flood risk listHP11 2TP: not on the flood risk listHP11 2TQ: not on the flood risk listHP11 2TR: not on the flood risk listHP11 2TT: not on the flood risk listHP11 2TU: not on the flood risk listHP11 2TW: not on the flood risk listHP11 2TX: not on the flood risk listHP11 2TY: not on the flood risk listHP11 2TZ: not on the flood risk listHP11 2UA: not on the flood risk listHP11 2UB: not on the flood risk listHP11 2UH: not on the flood risk listHP11 2UJ: not on the flood risk listHP11 2UL: not on the flood risk listHP11 2UN: not on the flood risk listHP11 2UP: not on the flood risk listHP11 2UQ: not on the flood risk listHP11 2UR: not on the flood risk listHP11 2UT: not on the flood risk listHP11 2UW: not on the flood risk listHP11 2WL: not on the flood risk listHP11 2WQ: not on the flood risk listHP11 2XA: not on the flood risk listHP11 2XE: 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 2AZ: low flood risk at worstHP11 2BN: low flood risk at worstHP11 2BW: low flood risk at worstHP11 2BY: low flood risk at worstHP11 2BZ: low flood risk at worstHP11 2DB: low flood risk at worstHP11 2DH: low flood risk at worstHP11 2EQ: low flood risk at worstHP11 2EL: low flood risk at worstHP11 2EN: low flood risk at worstHP11 2PR: low flood risk at worstHP11 2GZ: low flood risk at worstHP11 2JZ: low flood risk at worstHP11 2LU: low flood risk at worstHP11 2LX: low flood risk at worstHP11 2NA: low flood risk at worstHP11 2NB: low flood risk at worstHP11 2NF: low flood risk at worstHP11 2NH: low flood risk at worstHP11 2PZ: low flood risk at worstHP11 2NZ: low flood risk at worstHP11 2TE: low flood risk at worstHP11 2PF: low flood risk at worstHP11 2PU: low flood risk at worstHP11 2PX: low flood risk at worstHP11 2QA: low flood risk at worstHP11 2QB: low flood risk at worstHP11 2QH: low flood risk at worstHP11 2QR: low flood risk at worstHP11 2RS: 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 riskHP11 2AG: high flood riskHP11 2AR: high flood riskHP11 2AU: high flood riskHP11 2AW: high flood riskHP11 2AY: high flood riskHP11 2BJ: high flood riskHP11 2BP: high flood riskHP11 2BQ: high flood riskHP11 2DE: high flood riskHP11 2DF: high flood riskHP11 2DG: high flood riskHP11 2DJ: high flood riskHP11 2DL: high flood riskHP11 2HE: high flood riskHP11 2HF: high flood riskHP11 2HL: high flood riskHP11 2HQ: high flood riskHP11 2HS: high flood riskHP11 2HU: high flood risk High Wycombe 22 postcodes at high or medium risk, outlined: this goes to HP11 2HL, the one with most homes and businesses at high risk22 postcodes at high or medium risk Map of every postcode in HP11, by flood risk Of the 492 postcodes in HP11 that ONS places, 25 have a home or business at high risk, 4 are at medium risk at worst, 42 are at low risk at worst, 1 are at very low risk only and 420 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 22 postcodes at high or medium risk. 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: 25
  • At medium risk at worst: 4
  • At low risk at worst: 42
  • At very low risk only: 1
  • Not on the at-risk list: 420
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 492 postcodes in HP11 that ONS places, 25 have a home or business at high risk, 4 are at medium risk at worst, 42 are at low risk at worst, 1 are at very low risk only and 420 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 51.6237, longitude -0.7454. 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

25 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.

HP11 2HL73 at high riskHP11 2DL25 at high riskHP11 2DG18 at high riskHP11 2DJ13 at high riskHP11 1PD10 at high riskHP11 2AW9 at high riskHP11 2HF9 at high riskHP11 2AG7 at high riskHP11 2HU7 at high riskHP11 2DF6 at high riskHP11 1PE6 at high riskHP11 2HQ5 at high risk

Where the postcodes at high or medium risk lie together

  • 22 postcodes at high or medium risk, outlined on the map. HP11 2HL, is the one with most homes and businesses at high risk.

What broadband can you get in HP11?

Ofcom reports on 459 of the 492 postcodes in HP11. At 250 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit250 of 459
Postcodes where every home can get superfast438 of 459

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 HP11 at risk of flooding?

72 of the 492 postcodes in HP11 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 260 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 72 of 492 postcodes High: 228Medium: 32Low: 531Very low: 6

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 HP11?

Homes in HP11 sold for a typical £337,500 in the 12 months to August 2026, across 144 sales, down 2.2% on the 12 months before, HM Land Registry's figures show.

£337,500 typical price, the 12 months to August 2026
12 months to August 2025
£345,000
12 months to August 2026
£337,500

▼ down 2.2% on the 12 months before

Detached£618,000 25 sales
Semi-detached£420,000 37 sales
Terraced£384,000 25 sales
Flat or maisonette£220,000 57 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 HP11

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

HP11 1262 postcodesHP11 2207 postcodesHP11 923 postcodes
UK postcode format explained

Places in HP11

Towns and villages with postcodes in HP11, and how many each has here.

High Wycombe postcodes,486Flackwell Heath and Wooburn Green postcodes,6

Who covers HP11

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

  • Wycombe492

Police force areas

  • Thames Valley492

Next to HP11

HP10 postcode district HP12 postcode district All HP districts High Wycombe postcodes

"Next to" is by number: the districts before and after HP11 in the HP area.

Check a postcode

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