Population Statistics
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SG18 postcode district

SG18 holds 764 live postcodes around Biggleswade, in Central Bedfordshire.

Towns and villages with their centre in SG18

#PlaceCounty / councilPopulation
1BiggleswadeCentral Bedfordshire16,551
2LangfordCentral Bedfordshire3,091
SG18 (centre of its postcodes) in the UK

Wards

NameShare of postcodes
Biggleswade West40%
Biggleswade East24%
Northill19%
"Clifton12%
Potton4%
Stotfold0%

Westminster constituencies

NameShare of postcodes
North Bedfordshire88%
Hitchin12%

Deprivation

The middle postcode here sits in decile 6 of the English Index of Multiple Deprivation (2021-Census LSOAs), where decile 1 is the most deprived tenth of neighbourhoods and 10 the least. 0% of this district's postcodes sit in the most deprived three deciles, 39% 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 SG area

SG1 · SG2 · SG3 · SG4 · SG5 · SG6 · SG7 · SG8 · SG9 · SG10 · SG11 · SG12 · SG13 · SG14 · SG15 · SG16 · SG17 · SG19

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.