# HP18

3 sectors, 694 postcodes

- **Part of:** [HP](https://openpostcodes.uk/HP)
- **Local authorities:** Buckinghamshire, Cherwell, South Oxfordshire

## Sectors

| Sector | Postcodes | Local authority |
|---|---|---|
| [HP18 0](https://openpostcodes.uk/HP18%200) | 380 | Buckinghamshire |
| [HP18 1](https://openpostcodes.uk/HP18%201) | 23 | Buckinghamshire |
| [HP18 9](https://openpostcodes.uk/HP18%209) | 291 | Buckinghamshire |