# CO4

6 sectors, 1,191 postcodes

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

## Sectors

| Sector | Postcodes | Local authority |
|---|---|---|
| [CO4 0](https://openpostcodes.uk/CO4%200) | 168 | Colchester |
| [CO4 3](https://openpostcodes.uk/CO4%203) | 346 | Colchester |
| [CO4 5](https://openpostcodes.uk/CO4%205) | 394 | Colchester |
| [CO4 6](https://openpostcodes.uk/CO4%206) | 89 | Colchester |
| [CO4 7](https://openpostcodes.uk/CO4%207) | 4 | Colchester |
| [CO4 9](https://openpostcodes.uk/CO4%209) | 190 | Colchester |