# WD23

5 sectors, 774 postcodes

- **Part of:** [WD](https://openpostcodes.uk/WD)
- **Local authorities:** Hertsmere, Watford, Harrow

## Sectors

| Sector | Postcodes | Local authority |
|---|---|---|
| [WD23 1](https://openpostcodes.uk/WD23%201) | 222 | Hertsmere |
| [WD23 2](https://openpostcodes.uk/WD23%202) | 213 | Hertsmere |
| [WD23 3](https://openpostcodes.uk/WD23%203) | 157 | Hertsmere |
| [WD23 4](https://openpostcodes.uk/WD23%204) | 158 | Hertsmere |
| [WD23 9](https://openpostcodes.uk/WD23%209) | 24 | Hertsmere |