# SO

25 districts, 18,604 postcodes

- **Local authorities:** Southampton, Eastleigh, New Forest, Winchester, Test Valley, Fareham, East Hampshire, Basingstoke and Deane, Wiltshire

## Districts

| District | Postcodes | Local authority |
|---|---|---|
| [SO14](https://openpostcodes.uk/SO14) | 847 | Southampton |
| [SO15](https://openpostcodes.uk/SO15) | 1164 | Southampton |
| [SO16](https://openpostcodes.uk/SO16) | 1542 | Southampton |
| [SO17](https://openpostcodes.uk/SO17) | 441 | Southampton |
| [SO18](https://openpostcodes.uk/SO18) | 940 | Southampton |
| [SO19](https://openpostcodes.uk/SO19) | 1194 | Southampton |
| [SO20](https://openpostcodes.uk/SO20) | 346 | Test Valley |
| [SO21](https://openpostcodes.uk/SO21) | 743 | Winchester |
| [SO22](https://openpostcodes.uk/SO22) | 745 | Winchester |
| [SO23](https://openpostcodes.uk/SO23) | 810 | Winchester |
| [SO24](https://openpostcodes.uk/SO24) | 449 | Winchester |
| [SO25](https://openpostcodes.uk/SO25) | 1 | Winchester |
| [SO30](https://openpostcodes.uk/SO30) | 826 | Eastleigh |
| [SO31](https://openpostcodes.uk/SO31) | 1186 | Fareham |
| [SO32](https://openpostcodes.uk/SO32) | 676 | Winchester |
| [SO40](https://openpostcodes.uk/SO40) | 1079 | New Forest |
| [SO41](https://openpostcodes.uk/SO41) | 1083 | New Forest |
| [SO42](https://openpostcodes.uk/SO42) | 164 | New Forest |
| [SO43](https://openpostcodes.uk/SO43) | 137 | New Forest |
| [SO45](https://openpostcodes.uk/SO45) | 973 | New Forest |
| [SO50](https://openpostcodes.uk/SO50) | 1320 | Eastleigh |
| [SO51](https://openpostcodes.uk/SO51) | 878 | Test Valley |
| [SO52](https://openpostcodes.uk/SO52) | 185 | Test Valley |
| [SO53](https://openpostcodes.uk/SO53) | 860 | Eastleigh |
| [SO97](https://openpostcodes.uk/SO97) | 15 | Eastleigh |