This page provides postcode data for the St. Helens, unparished area parish. St. Helens, unparished area contains approximately 56,282 households with a population of about 129,374 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| WN4 0XS | 53.484054 | -2.676359 | 355215 | 398806 | SJ552988 | Yes |
| WN4 0XU | 53.485097 | -2.674763 | 355322 | 398921 | SJ553989 | Yes |
| WN4 0YA | 53.488253 | -2.664987 | 355974 | 399266 | SJ559992 | Yes |
| WN4 0YB | 53.484531 | -2.674769 | 355321 | 398858 | SJ553988 | Yes |
| WN4 0YD | 53.484346 | -2.667638 | 355794 | 398833 | SJ557988 | Yes |
| WN4 0YE | 53.485873 | -2.66305 | 356100 | 399000 | SJ561990 | No |
| WN4 0YF | 53.481506 | -2.662666 | 356121 | 398514 | SJ561985 | Yes |
| WN4 0YR | 53.485873 | -2.66305 | 356100 | 399000 | SJ561990 | No |
| WN4 0YS | 53.485873 | -2.66305 | 356100 | 399000 | SJ561990 | No |
| WN4 0YT | 53.482094 | -2.666442 | 355871 | 398582 | SJ558985 | Yes |
| WN4 0YU | 53.48662 | -2.661133 | 356228 | 399082 | SJ562990 | Yes |
| WN4 0YX | 53.481947 | -2.6643 | 356013 | 398564 | SJ560985 | Yes |
| WN4 9PH | 53.480297 | -2.638839 | 357701 | 398365 | SJ577983 | Yes |