HP20 postcode district: Aylesbury and around, Buckinghamshire

HP20 is a postcode district in England, with 530 postcodes in use in 3 sectors. It has postcodes in Aylesbury. Its council is Buckinghamshire.

Postcodes in use
530
Sectors
3
Council
Buckinghamshire
Places
Aylesbury

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

Every postcode in HP20, by flood risk

Map of every postcode in HP20, by flood risk Of the 530 postcodes in HP20 that ONS places, 7 have a home or business at high risk, 3 are at medium risk at worst, 25 are at low risk at worst, 10 are at very low risk only and 485 are not on the Environment Agency's at-risk list. Places named: Aylesbury, Broughton, Buckinghamshire. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. HP20 1AA: not on the flood risk listHP20 1AD: not on the flood risk listHP20 1AE: not on the flood risk listHP20 1AG: not on the flood risk listHP20 1AH: not on the flood risk listHP20 1AJ: not on the flood risk listHP20 1AN: not on the flood risk listHP20 1AP: not on the flood risk listHP20 1AT: not on the flood risk listHP20 1AZ: not on the flood risk listHP20 1BA: not on the flood risk listHP20 1BB: not on the flood risk listHP20 1BE: not on the flood risk listHP20 1BF: not on the flood risk listHP20 1BG: not on the flood risk listHP20 1BJ: not on the flood risk listHP20 1BL: not on the flood risk listHP20 1BN: not on the flood risk listHP20 1BQ: not on the flood risk listHP20 1BS: not on the flood risk listHP20 1BT: not on the flood risk listHP20 1BU: not on the flood risk listHP20 1BW: not on the flood risk listHP20 1BX: not on the flood risk listHP20 1DG: not on the flood risk listHP20 1DL: not on the flood risk listHP20 1DP: not on the flood risk listHP20 1DR: not on the flood risk listHP20 1DT: not on the flood risk listHP20 1DY: not on the flood risk listHP20 1DZ: not on the flood risk listHP20 1EA: not on the flood risk listHP20 1ED: not on the flood risk listHP20 1EE: not on the flood risk listHP20 1EG: not on the flood risk listHP20 1EH: not on the flood risk listHP20 1EJ: not on the flood risk listHP20 1EN: not on the flood risk listHP20 1EP: not on the flood risk listHP20 1EQ: not on the flood risk listHP20 1ER: not on the flood risk listHP20 1ES: not on the flood risk listHP20 1ET: not on the flood risk listHP20 1EW: not on the flood risk listHP20 1EX: not on the flood risk listHP20 1EZ: not on the flood risk listHP20 1FA: not on the flood risk listHP20 1FN: not on the flood risk listHP20 1GD: not on the flood risk listHP20 1GL: not on the flood risk listHP20 1HA: not on the flood risk listHP20 1HB: not on the flood risk listHP20 1HD: not on the flood risk listHP20 1HG: not on the flood risk listHP20 1HH: not on the flood risk listHP20 1HJ: not on the flood risk listHP20 1HL: not on the flood risk listHP20 1HN: not on the flood risk listHP20 1HP: not on the flood risk listHP20 1HQ: not on the flood risk listHP20 1HR: not on the flood risk listHP20 1HS: not on the flood risk listHP20 1HT: not on the flood risk listHP20 1HW: not on the flood risk listHP20 1HX: not on the flood risk listHP20 1HY: not on the flood risk listHP20 1HZ: not on the flood risk listHP20 1JA: not on the flood risk listHP20 1JB: not on the flood risk listHP20 1JD: not on the flood risk listHP20 1JE: not on the flood risk listHP20 1JF: not on the flood risk listHP20 1JG: not on the flood risk listHP20 1JH: not on the flood risk listHP20 1JJ: not on the flood risk listHP20 1JL: not on the flood risk listHP20 1JN: not on the flood risk listHP20 1JQ: not on the flood risk listHP20 1JR: not on the flood risk listHP20 1JS: not on the flood risk listHP20 1JU: not on the flood risk listHP20 1JW: not on the flood risk listHP20 1JX: not on the flood risk listHP20 1JY: not on the flood risk listHP20 1LD: not on the flood risk listHP20 1LE: not on the flood risk listHP20 1LF: not on the flood risk listHP20 1LG: not on the flood risk listHP20 1LH: not on the flood risk listHP20 1LJ: not on the flood risk listHP20 1LL: not on the flood risk listHP20 1LN: not on the flood risk listHP20 1LP: not on the flood risk listHP20 1LQ: not on the flood risk listHP20 1LR: not on the flood risk listHP20 1LS: not on the flood risk listHP20 1LT: not on the flood risk listHP20 1LU: not on the flood risk listHP20 1LW: not on the flood risk listHP20 1LX: not on the flood risk listHP20 1LY: not on the flood risk listHP20 1LZ: not on the flood risk listHP20 1NA: not on the flood risk listHP20 1NB: not on the flood risk listHP20 1ND: not on the flood risk listHP20 1NE: not on the flood risk listHP20 1NG: not on the flood risk listHP20 1NH: not on the flood risk listHP20 1NJ: not on the flood risk listHP20 1NL: not on the flood risk listHP20 1NN: not on the flood risk listHP20 1NP: not on the flood risk listHP20 1NQ: not on the flood risk listHP20 1NR: not on the flood risk listHP20 1NS: not on the flood risk listHP20 1NT: not on the flood risk listHP20 1NU: not on the flood risk listHP20 1NW: not on the flood risk listHP20 1NX: not on the flood risk listHP20 1PE: not on the flood risk listHP20 1PH: not on the flood risk listHP20 1PL: not on the flood risk listHP20 1PN: not on the flood risk listHP20 1PT: not on the flood risk listHP20 1PZ: not on the flood risk listHP20 1QA: not on the flood risk listHP20 1QB: not on the flood risk listHP20 1QD: not on the flood risk listHP20 1QE: not on the flood risk listHP20 1QF: not on the flood risk listHP20 1QG: not on the flood risk listHP20 1QR: not on the flood risk listHP20 1QS: not on the flood risk listHP20 1QX: not on the flood risk listHP20 1QY: not on the flood risk listHP20 1RA: not on the flood risk listHP20 1RE: not on the flood risk listHP20 1RF: not on the flood risk listHP20 1RJ: not on the flood risk listHP20 1RP: not on the flood risk listHP20 1RQ: not on the flood risk listHP20 1RW: not on the flood risk listHP20 1SA: not on the flood risk listHP20 1SB: not on the flood risk listHP20 1SD: not on the flood risk listHP20 1SE: not on the flood risk listHP20 1SF: not on the flood risk listHP20 1SH: not on the flood risk listHP20 1SL: not on the flood risk listHP20 1SN: not on the flood risk listHP20 1SQ: not on the flood risk listHP20 1ST: not on the flood risk listHP20 1SU: not on the flood risk listHP20 1TA: not on the flood risk listHP20 1TB: not on the flood risk listHP20 1TJ: not on the flood risk listHP20 1TR: not on the flood risk listHP20 1TS: not on the flood risk listHP20 1TX: not on the flood risk listHP20 1TZ: not on the flood risk listHP20 1UL: not on the flood risk listHP20 1UR: not on the flood risk listHP20 1US: not on the flood risk listHP20 1XB: not on the flood risk listHP20 1XE: not on the flood risk listHP20 1XF: not on the flood risk listHP20 1XG: not on the flood risk listHP20 1XH: not on the flood risk listHP20 1XJ: not on the flood risk listHP20 1XL: not on the flood risk listHP20 1XN: not on the flood risk listHP20 1XP: not on the flood risk listHP20 1XQ: not on the flood risk listHP20 1XR: not on the flood risk listHP20 1XS: not on the flood risk listHP20 1XT: not on the flood risk listHP20 1XU: not on the flood risk listHP20 1XW: not on the flood risk listHP20 1XX: not on the flood risk listHP20 1XY: not on the flood risk listHP20 1XZ: not on the flood risk listHP20 1YP: not on the flood risk listHP20 2AA: not on the flood risk listHP20 2AB: not on the flood risk listHP20 2AD: not on the flood risk listHP20 2AE: not on the flood risk listHP20 2AF: not on the flood risk listHP20 2AG: not on the flood risk listHP20 2AH: not on the flood risk listHP20 2AJ: not on the flood risk listHP20 2AL: not on the flood risk listHP20 2AN: not on the flood risk listHP20 2AP: not on the flood risk listHP20 2AR: not on the flood risk listHP20 2AS: not on the flood risk listHP20 2AT: not on the flood risk listHP20 2AU: not on the flood risk listHP20 2AW: not on the flood risk listHP20 2AX: not on the flood risk listHP20 2AY: not on the flood risk listHP20 2AZ: not on the flood risk listHP20 2BA: not on the flood risk listHP20 2BB: not on the flood risk listHP20 2BD: not on the flood risk listHP20 2BE: not on the flood risk listHP20 2BF: not on the flood risk listHP20 2BG: not on the flood risk listHP20 2BH: not on the flood risk listHP20 2BL: not on the flood risk listHP20 2BN: not on the flood risk listHP20 2BP: not on the flood risk listHP20 2BQ: not on the flood risk listHP20 2BS: not on the flood risk listHP20 2BT: not on the flood risk listHP20 2BU: not on the flood risk listHP20 2BW: not on the flood risk listHP20 2BX: not on the flood risk listHP20 2BY: not on the flood risk listHP20 2BZ: not on the flood risk listHP20 2DA: not on the flood risk listHP20 2DB: not on the flood risk listHP20 2DE: not on the flood risk listHP20 2DF: not on the flood risk listHP20 2DG: not on the flood risk listHP20 2DH: not on the flood risk listHP20 2DJ: not on the flood risk listHP20 2DL: not on the flood risk listHP20 2DN: not on the flood risk listHP20 2DP: not on the flood risk listHP20 2DQ: not on the flood risk listHP20 2DR: not on the flood risk listHP20 2DS: not on the flood risk listHP20 2DT: not on the flood risk listHP20 2DU: not on the flood risk listHP20 2DW: not on the flood risk listHP20 2DX: not on the flood risk listHP20 2DY: not on the flood risk listHP20 2DZ: not on the flood risk listHP20 2EA: not on the flood risk listHP20 2EB: not on the flood risk listHP20 2ED: not on the flood risk listHP20 2EE: not on the flood risk listHP20 2EF: not on the flood risk listHP20 2EG: not on the flood risk listHP20 2EH: not on the flood risk listHP20 2EJ: not on the flood risk listHP20 2EL: not on the flood risk listHP20 2EN: not on the flood risk listHP20 2EP: not on the flood risk listHP20 2EQ: not on the flood risk listHP20 2ER: not on the flood risk listHP20 2ES: not on the flood risk listHP20 2ET: not on the flood risk listHP20 2EU: not on the flood risk listHP20 2EW: not on the flood risk listHP20 2EX: not on the flood risk listHP20 2EY: not on the flood risk listHP20 2EZ: not on the flood risk listHP20 2FF: not on the flood risk listHP20 2FG: not on the flood risk listHP20 2FN: not on the flood risk listHP20 2FP: not on the flood risk listHP20 2FQ: not on the flood risk listHP20 2FU: not on the flood risk listHP20 2FW: not on the flood risk listHP20 2FY: not on the flood risk listHP20 2FZ: not on the flood risk listHP20 2GE: not on the flood risk listHP20 2GF: not on the flood risk listHP20 2GG: not on the flood risk listHP20 2GH: not on the flood risk listHP20 2GJ: not on the flood risk listHP20 2GL: not on the flood risk listHP20 2GN: not on the flood risk listHP20 2GQ: not on the flood risk listHP20 2HA: not on the flood risk listHP20 2HB: not on the flood risk listHP20 2HD: not on the flood risk listHP20 2HE: not on the flood risk listHP20 2HF: not on the flood risk listHP20 2HG: not on the flood risk listHP20 2HQ: not on the flood risk listHP20 2HR: not on the flood risk listHP20 2HT: not on the flood risk listHP20 2HU: not on the flood risk listHP20 2HX: not on the flood risk listHP20 2HZ: not on the flood risk listHP20 2JE: not on the flood risk listHP20 2JJ: not on the flood risk listHP20 2JL: not on the flood risk listHP20 2JN: not on the flood risk listHP20 2JP: not on the flood risk listHP20 2JR: not on the flood risk listHP20 2JU: not on the flood risk listHP20 2JW: not on the flood risk listHP20 2JZ: not on the flood risk listHP20 2LA: not on the flood risk listHP20 2LB: not on the flood risk listHP20 2LE: not on the flood risk listHP20 2LH: not on the flood risk listHP20 2LJ: not on the flood risk listHP20 2LL: not on the flood risk listHP20 2NA: not on the flood risk listHP20 2NB: not on the flood risk listHP20 2NF: not on the flood risk listHP20 2NH: not on the flood risk listHP20 2NJ: not on the flood risk listHP20 2NL: not on the flood risk listHP20 2NN: not on the flood risk listHP20 2NR: not on the flood risk listHP20 2NS: not on the flood risk listHP20 2NU: not on the flood risk listHP20 2NX: not on the flood risk listHP20 2NY: not on the flood risk listHP20 2PA: not on the flood risk listHP20 2PB: not on the flood risk listHP20 2PF: not on the flood risk listHP20 2PG: not on the flood risk listHP20 2PH: not on the flood risk listHP20 2PL: not on the flood risk listHP20 2PQ: not on the flood risk listHP20 2PS: not on the flood risk listHP20 2PZ: not on the flood risk listHP20 2QA: not on the flood risk listHP20 2QB: not on the flood risk listHP20 2QD: not on the flood risk listHP20 2QF: not on the flood risk listHP20 2QP: not on the flood risk listHP20 2QS: not on the flood risk listHP20 2QT: not on the flood risk listHP20 2QZ: not on the flood risk listHP20 2RA: not on the flood risk listHP20 2RB: not on the flood risk listHP20 2RD: not on the flood risk listHP20 2RE: not on the flood risk listHP20 2RG: not on the flood risk listHP20 2RH: not on the flood risk listHP20 2RN: not on the flood risk listHP20 2RQ: not on the flood risk listHP20 2RR: not on the flood risk listHP20 2RT: not on the flood risk listHP20 2RW: not on the flood risk listHP20 2RY: not on the flood risk listHP20 2RZ: not on the flood risk listHP20 2SA: not on the flood risk listHP20 2SD: not on the flood risk listHP20 2SE: not on the flood risk listHP20 2SF: not on the flood risk listHP20 2SG: not on the flood risk listHP20 2SH: not on the flood risk listHP20 2SN: not on the flood risk listHP20 2SP: not on the flood risk listHP20 2SQ: not on the flood risk listHP20 2SS: not on the flood risk listHP20 2TA: not on the flood risk listHP20 2TF: not on the flood risk listHP20 2TH: not on the flood risk listHP20 2UP: not on the flood risk listHP20 2UR: not on the flood risk listHP20 2UU: not on the flood risk listHP20 2UX: not on the flood risk listHP20 2UY: not on the flood risk listHP20 2UZ: not on the flood risk listHP20 2XA: not on the flood risk listHP20 2XB: not on the flood risk listHP20 2XD: not on the flood risk listHP20 2XE: not on the flood risk listHP20 2XF: not on the flood risk listHP20 2XJ: not on the flood risk listHP20 2XL: not on the flood risk listHP20 2XN: not on the flood risk listHP20 2XP: not on the flood risk listHP20 2XR: not on the flood risk listHP20 2XW: not on the flood risk listHP20 2XZ: not on the flood risk listHP20 2YG: not on the flood risk listHP20 9NW: not on the flood risk listHP20 9ZZ: not on the flood risk listHP20 1AS: very low flood risk onlyHP20 1AW: very low flood risk onlyHP20 1BD: very low flood risk onlyHP20 1BH: very low flood risk onlyHP20 1PA: very low flood risk onlyHP20 1PB: very low flood risk onlyHP20 1PD: very low flood risk onlyHP20 1QH: very low flood risk onlyHP20 1RY: very low flood risk onlyHP20 2TE: very low flood risk onlyHP20 1AF: low flood risk at worstHP20 1DA: low flood risk at worstHP20 1DB: low flood risk at worstHP20 1DH: low flood risk at worstHP20 1DN: low flood risk at worstHP20 1DU: low flood risk at worstHP20 1DW: low flood risk at worstHP20 1EB: low flood risk at worstHP20 1FE: low flood risk at worstHP20 1FF: low flood risk at worstHP20 1FW: low flood risk at worstHP20 1FY: low flood risk at worstHP20 1FZ: low flood risk at worstHP20 1GF: low flood risk at worstHP20 1PJ: low flood risk at worstHP20 1PQ: low flood risk at worstHP20 1PS: low flood risk at worstHP20 1PU: low flood risk at worstHP20 1PW: low flood risk at worstHP20 1PY: low flood risk at worstHP20 1QN: low flood risk at worstHP20 1RB: low flood risk at worstHP20 1RD: low flood risk at worstHP20 1RU: low flood risk at worstHP20 2SR: low flood risk at worstHP20 1DX: medium flood risk at worstHP20 1JT: medium flood risk at worstHP20 1PX: medium flood risk at worstHP20 1AL: high flood riskHP20 1AQ: high flood riskHP20 1AR: high flood riskHP20 1AY: high flood riskHP20 1DQ: high flood riskHP20 1UG: high flood riskHP20 2BJ: high flood risk AylesburyBroughton, Buckinghamshire Map of every postcode in HP20, by flood risk Of the 530 postcodes in HP20 that ONS places, 7 have a home or business at high risk, 3 are at medium risk at worst, 25 are at low risk at worst, 10 are at very low risk only and 485 are not on the Environment Agency's at-risk list. Places named: Aylesbury, Broughton, Buckinghamshire. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. AylesburyBroughton, Buckinghamshire
  • A home or business at high risk: 7
  • At medium risk at worst: 3
  • At low risk at worst: 25
  • At very low risk only: 10
  • Not on the at-risk list: 485

Of the 530 postcodes in HP20 that ONS places, 7 have a home or business at high risk, 3 are at medium risk at worst, 25 are at low risk at worst, 10 are at very low risk only and 485 are not on the Environment Agency's at-risk list.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.8202, longitude -0.8065. 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.

HP20 1DQ12 at high riskHP20 1AL10 at high riskHP20 1AR7 at high riskHP20 1AY2 at high riskHP20 1AQ1 at high riskHP20 1UG1 at high riskHP20 2BJ1 at high risk

What broadband can you get in HP20?

Ofcom reports on 439 of the 530 postcodes in HP20. At 310 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit310 of 439
Postcodes where every home can get superfast407 of 439

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 HP20 at risk of flooding?

45 of the 530 postcodes in HP20 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 40 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 45 of 530 postcodes High: 34Medium: 6Low: 381Very low: 231

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 HP20?

Homes in HP20 sold for a typical £306,000 in the 12 months to August 2026, across 147 sales, up 9.3% on the 12 months before, HM Land Registry's figures show.

£306,000 typical price, the 12 months to August 2026
12 months to August 2025
£280,000
12 months to August 2026
£306,000

▲ up 9.3% on the 12 months before

Detached£552,000 12 sales
Semi-detached£385,000 44 sales
Terraced£299,000 60 sales
Flat or maisonette£195,000 31 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 HP20

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

HP20 1245 postcodesHP20 2216 postcodesHP20 969 postcodes
UK postcode format explained

Places in HP20

Towns and villages with postcodes in HP20, and how many each has here.

Aylesbury postcodes,529

Who covers HP20

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

  • Aylesbury530

Police force areas

  • Thames Valley530

Next to HP20

HP19 postcode district HP21 postcode district All HP districts Aylesbury postcodes

"Next to" is by number: the districts before and after HP20 in the HP area.

Check a postcode

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