PO3 postcode district
PO3 holds 441 live postcodes around Portsmouth, in Portsmouth.
No listed town or village has its centre in PO3; the nearest are on the neighbouring districts below.
Wards
| Name | Share of postcodes |
|---|---|
| Baffins | 45% |
| Copnor | 35% |
| Hilsea | 15% |
| Milton | 4% |
| Charles Dickens | 1% |
| Fratton | 1% |
Westminster constituencies
| Name | Share of postcodes |
|---|---|
| Portsmouth North | 94% |
| Portsmouth South | 6% |
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. 12% of this district's postcodes sit in the most deprived three deciles, 24% 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 PO area
PO1 · PO2 · PO4 · PO5 · PO6 · PO7 · PO8 · PO9 · PO10 · PO11 · PO12 · PO13 · PO14 · PO15 · PO16 · PO17 · PO18 · PO19 · PO20 · PO21 · PO22 · PO30 · PO31 · PO32 · PO33 · PO34 · PO35 · PO36 · PO37 · PO38 · PO39 · PO40 · PO41
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.