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SO51 postcode district

SO51 holds 881 live postcodes around Romsey, in Test Valley, New Forest, Winchester and 1 more council areas.

Towns and villages with their centre in SO51

#PlaceCounty / councilPopulation
1RomseyHampshire17,161
2West WellowHampshire2,929
3MichelmershHampshire881
4PlaitfordHampshire352
SO51 (centre of its postcodes) in the UK

Wards

NameShare of postcodes
Romsey Abbey26%
Blackwater22%
Romsey Cupernham20%
Romsey Tadburn18%
Ampfield & Braishfield7%
Mid Test5%
"Ashurst1%
"Chilworth1%
Badger Farm and Oliver's Battery0%
Alderbury & Whiteparish0%

And 1 more.

Westminster constituencies

NameShare of postcodes
Romsey and Southampton North98%
New Forest East1%
Winchester0%
Salisbury0%

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. 0% of this district's postcodes sit in the most deprived three deciles, 60% 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 SO area

SO14 · SO15 · SO16 · SO17 · SO18 · SO19 · SO20 · SO21 · SO22 · SO23 · SO24 · SO25 · SO30 · SO31 · SO32 · SO40 · SO41 · SO42 · SO43 · SO45 · SO50 · SO52 · SO53 · SO97

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.