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? |
|---|---|---|---|---|---|---|
| WA9 5YD | 53.429063 | -2.743873 | 350671 | 392733 | SJ506927 | Yes |
| WA9 5YE | 53.426302 | -2.731048 | 351520 | 392417 | SJ515924 | Yes |
| WA9 5YF | 53.426413 | -2.731938 | 351461 | 392430 | SJ514924 | Yes |
| WA9 5YG | 53.43718 | -2.755289 | 349922 | 393644 | SJ499936 | Yes |
| WA9 5YH | 53.426623 | -2.731445 | 351494 | 392453 | SJ514924 | Yes |
| WA9 5YJ | 53.436928 | -2.75533 | 349919 | 393616 | SJ499936 | Yes |
| WA9 5YR | 53.429232 | -2.741182 | 350850 | 392750 | SJ508927 | Yes |
| WN4 0AD | 53.48538 | -2.660646 | 356259 | 398944 | SJ562989 | Yes |
| WN4 0PA | 53.491568 | -2.656809 | 356520 | 399630 | SJ565996 | Yes |
| WN4 0XS | 53.48407 | -2.676359 | 355215 | 398808 | SJ552988 | Yes |
| WN4 0XU | 53.485113 | -2.674763 | 355322 | 398923 | SJ553989 | Yes |
| WN4 0YA | 53.488269 | -2.664987 | 355974 | 399268 | SJ559992 | Yes |
| WN4 0YB | 53.484547 | -2.674769 | 355321 | 398860 | SJ553988 | Yes |
| WN4 0YD | 53.484362 | -2.667638 | 355794 | 398835 | SJ557988 | Yes |
| WN4 0YE | 53.485888 | -2.66305 | 356100 | 399002 | SJ561990 | No |
| WN4 0YF | 53.481522 | -2.662666 | 356121 | 398516 | SJ561985 | Yes |
| WN4 0YR | 53.485888 | -2.66305 | 356100 | 399002 | SJ561990 | No |
| WN4 0YS | 53.485888 | -2.66305 | 356100 | 399002 | SJ561990 | No |
| WN4 0YT | 53.482094 | -2.666442 | 355871 | 398582 | SJ558985 | Yes |
| WN4 0YU | 53.486636 | -2.661133 | 356228 | 399084 | SJ562990 | Yes |
| WN4 0YX | 53.481963 | -2.6643 | 356013 | 398566 | SJ560985 | Yes |
| WN4 9PH | 53.480313 | -2.638839 | 357701 | 398367 | SJ577983 | Yes |