N21 postcode district
N21 holds 558 live postcodes around Islington, in Enfield.
No listed town or village has its centre in N21; the nearest are on the neighbouring districts below.
Wards
| Name | Share of postcodes |
|---|---|
| Winchmore Hill | 35% |
| Grange Park | 27% |
| Bush Hill Park | 13% |
| Southgate | 11% |
| Oakwood | 9% |
| Highfield | 6% |
Westminster constituencies
| Name | Share of postcodes |
|---|---|
| Edmonton and Winchmore Hill | 80% |
| Southgate and Wood Green | 20% |
Deprivation
The middle postcode here sits in decile 8 of the English Index of Multiple Deprivation (2021-Census LSOAs), where decile 1 is the most deprived tenth of neighbourhoods and 10 the least. 1% of this district's postcodes sit in the most deprived three deciles, 58% 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 N area
N1 · N1C · N1P · N2 · N3 · N4 · N5 · N6 · N7 · N8 · N9 · N10 · N11 · N12 · N13 · N14 · N15 · N16 · N17 · N18 · N19 · N20 · N22 · N81
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.