RM12 postcode district
RM12 holds 626 live postcodes around Hornchurch, in Havering.
Towns and villages with their centre in RM12
| # | Place | County / council | Population |
|---|---|---|---|
| 1 | Hornchurch | Greater London | 25,470 |
Wards
| Name | Share of postcodes |
|---|---|
| Elm Park | 34% |
| St Andrew's | 27% |
| Hacton | 24% |
| Hylands & Harrow Lodge | 14% |
Westminster constituencies
| Name | Share of postcodes |
|---|---|
| Hornchurch and Upminster | 51% |
| Dagenham and Rainham | 35% |
| Romford | 14% |
Deprivation
The middle postcode here sits in decile 7 of the English Index of Multiple Deprivation (2021-Census LSOAs), where decile 1 is the most deprived tenth of neighbourhoods and 10 the least. 2% of this district's postcodes sit in the most deprived three deciles, 50% 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 RM area
RM1 · RM2 · RM3 · RM4 · RM5 · RM6 · RM7 · RM8 · RM9 · RM10 · RM11 · RM13 · RM14 · RM15 · RM16 · RM17 · RM18 · RM19 · RM20
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.