Districts in the KA area
| District | Main place | Local authority | Sectors | Postcodes |
|---|---|---|---|---|
| KA1 | Kilmarnock | East Ayrshire | 6 | 1,024 |
| KA2 | Dundonald | East Ayrshire | 2 | 227 |
| KA3 | Kilmarnock | East Ayrshire | 7 | 1,193 |
| KA4 | Galston | East Ayrshire | 1 | 171 |
| KA5 | Mauchline | East Ayrshire | 2 | 422 |
| KA6 | Drongan | East Ayrshire | 3 | 532 |
| KA7 | Ayr | South Ayrshire | 5 | 916 |
| KA8 | Ayr | South Ayrshire | 3 | 542 |
| KA9 | Prestwick | South Ayrshire | 3 | 449 |
| KA10 | Troon | South Ayrshire | 3 | 433 |
| KA11 | Irvine | North Ayrshire | 5 | 543 |
| KA12 | Irvine | North Ayrshire | 4 | 589 |
| KA13 | Kilwinning | North Ayrshire | 3 | 462 |
| KA14 | Glengarnock | North Ayrshire | 1 | 37 |
| KA15 | Beith | North Ayrshire | 2 | 245 |
| KA16 | Newmilns | East Ayrshire | 1 | 111 |
| KA17 | Darvel | East Ayrshire | 1 | 140 |
| KA18 | Cumnock | East Ayrshire | 5 | 738 |
| KA19 | Maybole | South Ayrshire | 2 | 315 |
| KA20 | Stevenston | North Ayrshire | 2 | 264 |
| KA21 | Saltcoats | North Ayrshire | 3 | 373 |
| KA22 | Ardrossan | North Ayrshire | 2 | 319 |
| KA23 | West Kilbride | North Ayrshire | 1 | 191 |
| KA24 | Dalry | North Ayrshire | 3 | 226 |
| KA25 | Kilbirnie | North Ayrshire | 2 | 227 |
| KA26 | Girvan | South Ayrshire | 2 | 402 |
| KA27 | Brodick | North Ayrshire | 1 | 205 |
| KA28 | Millport | North Ayrshire | 1 | 72 |
| KA29 | Fairlie | North Ayrshire | 1 | 66 |
| KA30 | Largs | North Ayrshire | 2 | 361 |