Population Statistics
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NW3 postcode district

NW3 holds 1,318 live postcodes around Belsize Park, in Camden, Barnet.

Towns and villages with their centre in NW3

#PlaceCounty / councilPopulation
1Belsize ParkGreater London11,600
NW3 (centre of its postcodes) in the UK

Wards

NameShare of postcodes
Hampstead Town29%
Belsize23%
Frognal15%
Primrose Hill10%
Gospel Oak9%
Haverstock7%
West Hampstead3%
Childs Hill2%
South Hampstead1%
Fortune Green1%

And 2 more.

Westminster constituencies

NameShare of postcodes
Hampstead and Highgate90%
Holborn and St Pancras8%
Finchley and Golders Green2%

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. 6% 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 NW area

NW1 · NW1W · NW2 · NW4 · NW5 · NW6 · NW7 · NW8 · NW9 · NW10 · NW11 · NW26

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.