L40
10 sectors, 572 postcodes
West Lancashire, Chorley
| Sector | Postcodes | Local authority |
|---|
| L40 0 | 42 | West Lancashire |
| L40 1 | 67 | West Lancashire |
| L40 2 | 37 | Chorley |
| L40 3 | 36 | West Lancashire |
| L40 4 | 44 | West Lancashire |
| L40 5 | 88 | West Lancashire |
| L40 6 | 49 | West Lancashire |
| L40 7 | 114 | West Lancashire |
| L40 8 | 51 | West Lancashire |
| L40 9 | 44 | West Lancashire |