CA - Carlisle
The postal area CA (Carlisle) comprises of the following post towns; these towns should be written in capital letters when used in addresses.
Postal Districts within CA - Carlisle
| Country | Post Town | Postal District |
| England | Carlisle | CA1 CA2 CA3 CA4 CA5 CA6 |
| Wigton | CA7 | |
| Brampton | CA8 | |
| Alston | CA9 | |
| Penrith | CA10 CA11 |
|
| Keswick | CA12 | |
| Cockermouth | CA13 | |
| Workington | CA14 | |
| Maryport | CA15 | |
| Appleby-in-Westmorland | CA16 | |
| Kirkby Stephen | CA17 | |
| Ravenglass | CA18 | |
| Holmrook | CA19 | |
| Seascale | CA20 | |
| Beckermet | CA21 | |
| Egremont | CA22 | |
| Cleator | CA23 | |
| Moor Row | CA24 | |
| Cleator Moor | CA25 | |
| Frizington | CA26 | |
| St. Bees | CA27 | |
| Whitehaven | CA28 |
