Population Statistics
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NG31 postcode district

NG31 holds 1,159 live postcodes around Grantham, in South Kesteven.

Towns and villages with their centre in NG31

#PlaceCounty / councilPopulation
1GranthamLincolnshire44,580
2Great GonerbyLincolnshire5,853
NG31 (centre of its postcodes) in the UK

Wards

NameShare of postcodes
Grantham St Wulfram's21%
Grantham St Vincent's16%
Grantham Arnoldfield10%
Belmont10%
Grantham Earlesfield10%
Grantham Harrowby9%
Grantham Barrowby Gate9%
Grantham Springfield8%
Peascliffe & Ridgeway5%
Belvoir2%

And 2 more.

Westminster constituencies

NameShare of postcodes
Grantham and Bourne100%
Rutland and Stamford0%

Deprivation

The middle postcode here sits in decile 5 of the English Index of Multiple Deprivation (2021-Census LSOAs), where decile 1 is the most deprived tenth of neighbourhoods and 10 the least. 35% of this district's postcodes sit in the most deprived three deciles, 30% 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 NG area

NG1 · NG2 · NG3 · NG4 · NG5 · NG6 · NG7 · NG8 · NG9 · NG10 · NG11 · NG12 · NG13 · NG14 · NG15 · NG16 · NG17 · NG18 · NG19 · NG20 · NG21 · NG22 · NG23 · NG24 · NG25 · NG32 · NG33 · NG34 · NG80 · NG90

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.