CF postcode area
The CF area holds 39 districts and 23,435 live postcodes; its largest place is Cardiff.
| District | Live postcodes | Largest place with its centre there |
|---|---|---|
| CF3 | 922 | Marshfield |
| CF5 | 1,444 | Llandaff |
| CF10 | 646 | Cardiff |
| CF11 | 870 | — |
| CF14 | 1,662 | Whitchurch |
| CF15 | 513 | Radyr |
| CF23 | 908 | — |
| CF24 | 1,058 | — |
| CF30 | 10 | — |
| CF31 | 980 | Bridgend |
| CF32 | 800 | Aberkenfig |
| CF33 | 310 | Pyle |
| CF34 | 417 | Maesteg |
| CF35 | 484 | Coity |
| CF36 | 412 | Porthcawl |
| CF37 | 885 | Pontypridd |
| CF38 | 448 | Beddau |
| CF39 | 558 | Tonyrefail |
| CF40 | 479 | Tonypandy |
| CF41 | 249 | Pentre |
| CF42 | 310 | Treorchy |
| CF43 | 257 | Rhondda |
| CF44 | 1,014 | Aberdare |
| CF45 | 437 | Mountain Ash |
| CF46 | 349 | Nelson |
| CF47 | 633 | Merthyr Tydfil |
| CF48 | 753 | Abercanaid |
| CF61 | 231 | Llantwit Major |
| CF62 | 906 | Barry |
| CF63 | 478 | — |
| CF64 | 925 | Penarth |
| CF71 | 283 | Cowbridge |
| CF72 | 689 | Llantrisant |
| CF81 | 386 | Bargoed |
| CF82 | 501 | Gelligaer |
| CF83 | 1,208 | Caerphilly |
| CF91 | 14 | — |
| CF95 | 5 | — |
| CF99 | 1 | — |
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.