| Area/District | Active Postcodes |
| TS1 | 1,267 |
| TS10 | 1,444 |
| TS11 | 420 |
| TS12 | 805 |
| TS13 | 443 |
| TS14 | 636 |
| TS15 | 511 |
| TS16 | 390 |
| TS17 | 1,327 |
| TS18 | 1,317 |
| TS19 | 1,518 |
| TS2 | 294 |
| TS20 | 663 |
| TS21 | 624 |
| TS22 | 346 |
| TS23 | 943 |
| TS24 | 1,159 |
| TS25 | 1,231 |
| TS26 | 804 |
| TS27 | 413 |
| TS28 | 195 |
| TS29 | 209 |
| TS3 | 1,085 |
| TS4 | 622 |
| TS5 | 1,247 |
| TS6 | 1,225 |
| TS7 | 727 |
| TS8 | 561 |
| TS9 | 627 |
| TS90 | 10 |