M postcode area
The M area holds 46 districts and 32,419 live postcodes; its largest place is Manchester.
| District | Live postcodes | Largest place with its centre there |
|---|---|---|
| M1 | 548 | Manchester |
| M2 | 213 | Manchester City Centre |
| M3 | 642 | — |
| M4 | 534 | — |
| M5 | 643 | — |
| M6 | 836 | Salford |
| M7 | 779 | — |
| M8 | 803 | Cheetham Hill |
| M9 | 1,084 | Blackley |
| M11 | 759 | — |
| M12 | 506 | Longsight |
| M13 | 487 | — |
| M14 | 1,043 | Fallowfield |
| M15 | 632 | Hulme |
| M16 | 884 | — |
| M17 | 161 | Trafford Park |
| M18 | 595 | — |
| M19 | 807 | Burnage |
| M20 | 1,145 | Didsbury |
| M21 | 727 | Chorlton cum Hardy |
| M22 | 1,207 | — |
| M23 | 819 | — |
| M24 | 1,269 | Middleton |
| M25 | 786 | Prestwich |
| M26 | 863 | Radcliffe |
| M27 | 1,104 | Swinton |
| M28 | 1,121 | Walkden |
| M29 | 568 | Tyldesley |
| M30 | 953 | Eccles |
| M31 | 267 | Partington |
| M32 | 679 | Stretford |
| M33 | 1,555 | Sale |
| M34 | 1,282 | Denton |
| M35 | 531 | Failsworth |
| M38 | 331 | Little Hulton |
| M40 | 1,394 | — |
| M41 | 1,020 | Urmston |
| M43 | 624 | Droylsden |
| M44 | 478 | Irlam |
| M45 | 646 | Whitefield |
| M46 | 577 | Atherton |
| M50 | 202 | — |
| M60 | 133 | — |
| M61 | 89 | — |
| M90 | 82 | — |
| M99 | 11 | — |
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.