# AL4

3 sectors, 786 postcodes

- **Part of:** [AL](https://openpostcodes.uk/AL)
- **Local authorities:** St Albans, North Hertfordshire, Welwyn Hatfield, Hertsmere

## Sectors

| Sector | Postcodes | Local authority |
|---|---|---|
| [AL4 0](https://openpostcodes.uk/AL4%200) | 290 | St Albans |
| [AL4 8](https://openpostcodes.uk/AL4%208) | 209 | St Albans |
| [AL4 9](https://openpostcodes.uk/AL4%209) | 287 | St Albans |