| Area/District | Active Postcodes |
| SW10 | 846 |
| SW11 | 2,467 |
| SW12 | 1,001 |
| SW13 | 647 |
| SW14 | 651 |
| SW15 | 2,003 |
| SW16 | 2,267 |
| SW17 | 1,643 |
| SW18 | 1,985 |
| SW19 | 2,851 |
| SW1A | 352 |
| SW1E | 372 |
| SW1H | 363 |
| SW1P | 1,594 |
| SW1V | 1,119 |
| SW1W | 809 |
| SW1X | 925 |
| SW1Y | 682 |
| SW2 | 1,824 |
| SW20 | 954 |
| SW3 | 1,824 |
| SW4 | 1,534 |
| SW5 | 742 |
| SW6 | 2,641 |
| SW7 | 1,408 |
| SW8 | 1,486 |
| SW9 | 1,749 |
| SW95 | 62 |
| SW99 | 2 |