BN21 postcode district
BN21 holds 932 live postcodes around Eastbourne, in Eastbourne.
Towns and villages with their centre in BN21
| # | Place | County / council | Population |
|---|---|---|---|
| 1 | Eastbourne | East Sussex | 101,689 |
Wards
| Name | Share of postcodes |
|---|---|
| Upperton | 38% |
| Meads | 25% |
| Devonshire | 13% |
| Ratton | 12% |
| Old Town | 11% |
Westminster constituency
Every BN21 postcode falls in Eastbourne.
Deprivation
The middle postcode here sits in decile 4 of the English Index of Multiple Deprivation (2021-Census LSOAs), where decile 1 is the most deprived tenth of neighbourhoods and 10 the least. 36% of this district's postcodes sit in the most deprived three deciles, 18% in the least deprived three.
Deprivation deciles describe the LSOA neighbourhood each postcode sits in, weighted by postcodes rather than by people, because the postcode file carries no population. A district where the deprived neighbourhoods are densely populated will read better here than it would per resident.
Neighbouring districts in the BN area
BN1 · BN2 · BN3 · BN5 · BN6 · BN7 · BN8 · BN9 · BN10 · BN11 · BN12 · BN13 · BN14 · BN15 · BN16 · BN17 · BN18 · BN20 · BN22 · BN23 · BN24 · BN25 · BN26 · BN27 · BN41 · BN42 · BN43 · BN44 · BN45 · BN50 · BN51 · BN52 · BN88 · BN95 · BN99
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.