Districts in the CR area
| District | Main place | Local authority | Sectors | Postcodes |
|---|---|---|---|---|
| CR0 | London | Croydon | 10 | 2,791 |
| CR2 | London | Croydon | 6 | 996 |
| CR3 | Caterham | Tandridge | 5 | 770 |
| CR4 | London | Merton | 5 | 911 |
| CR5 | Coulsdon | Croydon | 4 | 700 |
| CR6 | Warlingham | Tandridge | 2 | 257 |
| CR7 | London | Croydon | 4 | 609 |
| CR8 | Purley | Croydon | 6 | 803 |
| CR9 | Croydon | Croydon | 10 | 126 |
| CR90 | London | Croydon | 1 | 46 |