MK postcode area
The MK area holds 28 districts and 16,215 live postcodes; its largest place is Milton Keynes.
| District | Live postcodes | Largest place with its centre there |
|---|---|---|
| MK1 | 105 | — |
| MK2 | 383 | Bletchley |
| MK3 | 660 | — |
| MK4 | 628 | — |
| MK5 | 422 | — |
| MK6 | 612 | — |
| MK7 | 396 | — |
| MK8 | 504 | — |
| MK9 | 262 | Milton Keynes |
| MK10 | 627 | — |
| MK11 | 280 | — |
| MK12 | 298 | — |
| MK13 | 496 | — |
| MK14 | 474 | — |
| MK15 | 214 | — |
| MK16 | 575 | Newport Pagnell |
| MK17 | 909 | Woburn Sands |
| MK18 | 1,266 | Buckingham |
| MK19 | 349 | Deanshanger |
| MK20 | 6 | — |
| MK40 | 930 | Bedford |
| MK41 | 1,053 | Clapham |
| MK42 | 1,288 | Kempston |
| MK43 | 1,126 | Kempston Hardwick |
| MK44 | 668 | Great Barford |
| MK45 | 1,313 | Ampthill |
| MK46 | 307 | Olney |
| MK77 | 64 | — |
Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v3.0. Postcode data is the ONS Postcode Directory, August 2026 edition; counts are live postcodes with a usable location. Northern Ireland postcodes carry a separate licence and are not included; Scotland joins when the site's Scottish coverage does.