OX
26 districts, 20,494 postcodes
Cherwell, West Oxfordshire, South Oxfordshire, Oxford, Vale of White Horse, West Northamptonshire, and others
| District | Postcodes | Local authority |
|---|---|---|
| OX1 | 847 | Oxford |
| OX10 | 1,040 | South Oxfordshire |
| OX11 | 1,179 | South Oxfordshire |
| OX12 | 1,027 | Vale of White Horse |
| OX13 | 476 | Vale of White Horse |
| OX14 | 1,337 | Vale of White Horse |
| OX15 | 834 | Cherwell |
| OX16 | 1,364 | Cherwell |
| OX17 | 716 | West Northamptonshire |
| OX18 | 930 | West Oxfordshire |
| OX2 | 1,022 | Oxford |
| OX20 | 275 | West Oxfordshire |
| OX25 | 524 | Cherwell |
| OX26 | 937 | Cherwell |
| OX27 | 370 | Cherwell |
| OX28 | 775 | West Oxfordshire |
| OX29 | 1,013 | West Oxfordshire |
| OX3 | 999 | Oxford |
| OX33 | 280 | South Oxfordshire |
| OX39 | 260 | South Oxfordshire |
| OX4 | 1,365 | Oxford |
| OX44 | 346 | South Oxfordshire |
| OX49 | 231 | South Oxfordshire |
| OX5 | 702 | Cherwell |
| OX7 | 1,082 | West Oxfordshire |
| OX9 | 563 | South Oxfordshire |