# CO1

3 sectors, 595 postcodes

- **Part of:** [CO](https://openpostcodes.uk/CO)
- **Local authorities:** Colchester

## Sectors

| Sector | Postcodes | Local authority |
|---|---|---|
| [CO1 1](https://openpostcodes.uk/CO1%201) | 234 | Colchester |
| [CO1 2](https://openpostcodes.uk/CO1%202) | 291 | Colchester |
| [CO1 9](https://openpostcodes.uk/CO1%209) | 70 | Colchester |