# HA

10 districts, 10,267 postcodes

- **Local authorities:** Harrow, Brent, Hillingdon, Barnet, Three Rivers, Ealing, Hertsmere

## Districts

| District | Postcodes | Local authority |
|---|---|---|
| [HA0](https://openpostcodes.uk/HA0) | 856 | Brent |
| [HA1](https://openpostcodes.uk/HA1) | 964 | Harrow |
| [HA2](https://openpostcodes.uk/HA2) | 966 | Harrow |
| [HA3](https://openpostcodes.uk/HA3) | 1263 | Harrow |
| [HA4](https://openpostcodes.uk/HA4) | 1138 | Hillingdon |
| [HA5](https://openpostcodes.uk/HA5) | 1093 | Harrow |
| [HA6](https://openpostcodes.uk/HA6) | 721 | Hillingdon |
| [HA7](https://openpostcodes.uk/HA7) | 850 | Harrow |
| [HA8](https://openpostcodes.uk/HA8) | 1404 | Barnet |
| [HA9](https://openpostcodes.uk/HA9) | 1012 | Brent |