RH
21 districts, 16,358 postcodes
Mid Sussex, Horsham, Crawley, Reigate and Banstead, Mole Valley, Tandridge, and others
| District | Postcodes | Local authority |
|---|---|---|
| RH1 | 1,246 | Reigate and Banstead |
| RH10 | 1,912 | Crawley |
| RH11 | 1,186 | Crawley |
| RH12 | 1,384 | Horsham |
| RH13 | 1,125 | Horsham |
| RH14 | 599 | Horsham |
| RH15 | 910 | Mid Sussex |
| RH16 | 1,118 | Mid Sussex |
| RH17 | 718 | Mid Sussex |
| RH18 | 141 | Wealden |
| RH19 | 1,113 | Mid Sussex |
| RH2 | 841 | Reigate and Banstead |
| RH20 | 894 | Horsham |
| RH3 | 145 | Mole Valley |
| RH4 | 667 | Mole Valley |
| RH5 | 642 | Mole Valley |
| RH6 | 893 | Reigate and Banstead |
| RH7 | 236 | Tandridge |
| RH77 | 16 | Crawley |
| RH8 | 421 | Tandridge |
| RH9 | 151 | Tandridge |