The Ordnance Survey Map of 1900 supplied by A Vision of Britain through Time will assist in identifying the location of the individual parishes.
Parishes
Parish | Description | Duration | Notes
| Clenchwarton | parish (ancient), civil parish | 1894 - 1974 |
| Emneth | chapelry, hamlet, civil parish | 1894 - 1974 |
| Marshland St. James | civil parish | 1935 - 1974 | formed in 1935 from a series of detached portions of other parishes
| Outwell | civil parish | 1889 - 1974 |
| Terrington St. Clement | parish (ancient), civil parish | 1894 - 1974 |
| Terrington St. John | chapelry, civil parish | 1894 - 1974 |
| Tilney All Saints | parish (ancient), civil parish | 1894 - 1974 |
| Tilney St. Lawrence | chapelry, civil parish | 1894 - 1974 |
| Tilney with Islington | parish (ancient), civil parish | 1894 - 1935 | absorbed into Tilney St. Lawrence in 1935
| Upwell | civil parish | 1889 - 1974 |
| Walpole St. Andrew | parish (ancient), civil parish | 1894 - 1974 |
| Walpole St. Peter | parish (ancient), civil parish | 1894 - 1974 |
| Walsoken | parish (ancient), civil parish | 1934 - 1974 |
| West Walton | parish (ancient), civil parish | 1894 - 1974 |
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