# CO3

5 sectors, 866 postcodes

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

## Sectors

| Sector | Postcodes | Local authority |
|---|---|---|
| [CO3 0](https://openpostcodes.uk/CO3%200) | 205 | Colchester |
| [CO3 3](https://openpostcodes.uk/CO3%203) | 231 | Colchester |
| [CO3 4](https://openpostcodes.uk/CO3%204) | 182 | Colchester |
| [CO3 8](https://openpostcodes.uk/CO3%208) | 100 | Colchester |
| [CO3 9](https://openpostcodes.uk/CO3%209) | 148 | Colchester |