MK
28 districts, 16,210 postcodes
Milton Keynes, Bedford, Central Bedfordshire, Buckinghamshire, West Northamptonshire, Cherwell, and others
| District | Postcodes | Local authority |
|---|---|---|
| MK1 | 107 | Milton Keynes |
| MK10 | 630 | Milton Keynes |
| MK11 | 284 | Milton Keynes |
| MK12 | 297 | Milton Keynes |
| MK13 | 496 | Milton Keynes |
| MK14 | 475 | Milton Keynes |
| MK15 | 215 | Milton Keynes |
| MK16 | 575 | Milton Keynes |
| MK17 | 908 | Milton Keynes |
| MK18 | 1,266 | Buckinghamshire |
| MK19 | 349 | West Northamptonshire |
| MK2 | 384 | Milton Keynes |
| MK20 | 6 | Milton Keynes |
| MK3 | 656 | Milton Keynes |
| MK4 | 624 | Milton Keynes |
| MK40 | 927 | Bedford |
| MK41 | 1,056 | Bedford |
| MK42 | 1,284 | Bedford |
| MK43 | 1,128 | Bedford |
| MK44 | 672 | Bedford |
| MK45 | 1,311 | Central Bedfordshire |
| MK46 | 305 | Milton Keynes |
| MK5 | 422 | Milton Keynes |
| MK6 | 613 | Milton Keynes |
| MK7 | 393 | Milton Keynes |
| MK77 | 64 | Milton Keynes |
| MK8 | 501 | Milton Keynes |
| MK9 | 262 | Milton Keynes |