This is a list of postcodes in the RG21 4 area covering the areas of Basingstoke Town Centre, Eastrop, Black Dam, Hampshire. The area contains approximately 1,424 households with a population of about 3,257 (2011 census)
Active postcode
Postcode no longer in use| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| RG21 4YF | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4YG | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4YH | 51.267614 | -1.076466 | 464528 | 152456 | SU645524 | No |
| RG21 4YJ | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4YL | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4YN | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4YP | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4YQ | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4YR | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4YS | 51.267623 | -1.076452 | 464529 | 152457 | SU645524 | No |
| RG21 4YT | 51.267623 | -1.076452 | 464529 | 152457 | SU645524 | No |
| RG21 4YU | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4YW | 51.267623 | -1.076452 | 464529 | 152457 | SU645524 | No |
| RG21 4YX | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4YY | 51.268574 | -1.080676 | 464233 | 152559 | SU642525 | Yes |
| RG21 4YZ | 51.267614 | -1.076466 | 464528 | 152456 | SU645524 | No |
| RG21 4ZB | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4ZD | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4ZU | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4ZX | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4ZY | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |
| RG21 4ZZ | 51.277434 | -1.107897 | 462322 | 153521 | SU623535 | No |