HP postcode area
The HP area holds 24 districts and 14,101 live postcodes; its largest place is High Wycombe.
| District | Live postcodes | Largest place with its centre there |
|---|---|---|
| HP1 | 681 | Bourne End |
| HP2 | 987 | Hemel Hempstead |
| HP3 | 763 | Bennetts End |
| HP4 | 737 | Berkhamsted |
| HP5 | 730 | Chesham |
| HP6 | 428 | Amersham on the Hill |
| HP7 | 359 | Amersham |
| HP8 | 220 | Chalfont St Giles |
| HP9 | 554 | Beaconsfield |
| HP10 | 564 | Flackwell Heath |
| HP11 | 492 | High Wycombe |
| HP12 | 489 | — |
| HP13 | 847 | — |
| HP14 | 541 | Stokenchurch |
| HP15 | 424 | — |
| HP16 | 372 | Great Missenden |
| HP17 | 373 | Haddenham |
| HP18 | 695 | Long Crendon |
| HP19 | 593 | — |
| HP20 | 530 | Aylesbury |
| HP21 | 725 | — |
| HP22 | 976 | Wendover |
| HP23 | 576 | Tring |
| HP27 | 445 | Princes Risborough |
Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v3.0. Postcode data is the ONS Postcode Directory, August 2026 edition; counts are live postcodes with a usable location. Northern Ireland postcodes carry a separate licence and are not included; Scotland joins when the site's Scottish coverage does.