BN postcode area
The BN area holds 36 districts and 22,566 live postcodes; its largest place is Brighton.
| District | Live postcodes | Largest place with its centre there |
|---|---|---|
| BN1 | 1,578 | Brighton |
| BN2 | 1,608 | Rottingdean |
| BN3 | 1,447 | Hove |
| BN5 | 288 | Henfield |
| BN6 | 624 | Hurstpierpoint |
| BN7 | 746 | Lewes |
| BN8 | 696 | Newick |
| BN9 | 416 | Newhaven |
| BN10 | 537 | Peacehaven |
| BN11 | 1,097 | Worthing |
| BN12 | 688 | Goring-by-Sea |
| BN13 | 772 | — |
| BN14 | 751 | Broadwater |
| BN15 | 746 | Lancing |
| BN16 | 1,022 | Rustington |
| BN17 | 768 | Littlehampton |
| BN18 | 588 | Yapton |
| BN20 | 730 | Friston |
| BN21 | 932 | Eastbourne |
| BN22 | 828 | — |
| BN23 | 688 | — |
| BN24 | 383 | Pevensey |
| BN25 | 885 | Seaford |
| BN26 | 525 | Alfriston |
| BN27 | 1,134 | Hailsham |
| BN41 | 396 | Portslade |
| BN42 | 219 | — |
| BN43 | 530 | Shoreham-by-Sea |
| BN44 | 263 | Steyning |
| BN45 | 42 | Poynings |
| BN50 | 68 | — |
| BN51 | 9 | — |
| BN52 | 61 | — |
| BN88 | 8 | — |
| BN95 | 1 | — |
| BN99 | 492 | — |
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.