# UB

12 districts, 7,215 postcodes

- **Local authorities:** Hillingdon, Ealing, Buckinghamshire, Hounslow, Harrow, Three Rivers

## Districts

| District | Postcodes | Local authority |
|---|---|---|
| [UB1](https://openpostcodes.uk/UB1) | 614 | Ealing |
| [UB10](https://openpostcodes.uk/UB10) | 711 | Hillingdon |
| [UB11](https://openpostcodes.uk/UB11) | 19 | Hillingdon |
| [UB18](https://openpostcodes.uk/UB18) | 59 | Ealing |
| [UB2](https://openpostcodes.uk/UB2) | 532 | Ealing |
| [UB3](https://openpostcodes.uk/UB3) | 984 | Hillingdon |
| [UB4](https://openpostcodes.uk/UB4) | 704 | Hillingdon |
| [UB5](https://openpostcodes.uk/UB5) | 841 | Ealing |
| [UB6](https://openpostcodes.uk/UB6) | 862 | Ealing |
| [UB7](https://openpostcodes.uk/UB7) | 632 | Hillingdon |
| [UB8](https://openpostcodes.uk/UB8) | 824 | Hillingdon |
| [UB9](https://openpostcodes.uk/UB9) | 433 | Buckinghamshire |