# CM20

4 sectors, 632 postcodes

- **Part of:** [CM](https://openpostcodes.uk/CM)
- **Local authorities:** Harlow, East Hertfordshire

## Sectors

| Sector | Postcodes | Local authority |
|---|---|---|
| [CM20 1](https://openpostcodes.uk/CM20%201) | 162 | Harlow |
| [CM20 2](https://openpostcodes.uk/CM20%202) | 203 | Harlow |
| [CM20 3](https://openpostcodes.uk/CM20%203) | 196 | Harlow |
| [CM20 9](https://openpostcodes.uk/CM20%209) | 71 | Harlow |