| Parish | Description | Notes
|
| Brandon, Suffolk | ancient parish, civil parish | until 1895 when completely removed to Suffolk
|
| Buckenham Tofts | ancient parish, civil parish | also known as Buckenham-Parva
|
| Colveston | ancient parish, civil parish |
|
| Cranwich | ancient parish, civil parish |
|
| Croxton | ancient parish, civil parish |
|
| Feltwell | ancient parish, civil parish |
|
| Feltwell Anchor | extraparochial, civil parish | 1858 onward
|
| Hockwold | ancient parish, civil parish | until 1720, see Hockwold cum Wilton
|
| Hockwold cum Wilton | civil parish | 1720 onward
|
| Ickburgh | ancient parish, civil parish |
|
| Lynford | ancient parish, civil parish |
|
| Methwold | ancient parish, civil parish |
|
| Mundford | ancient parish, civil parish |
|
| Northwold | ancient parish, civil parish |
|
| Santon | ancient parish, civil parish |
|
| Stanford | ancient parish, civil parish |
|
| Sturston | ancient parish, civil parish |
|
| Thetford All Saints | ancient parish, civil parish | civil parish until 1924
|
| Thetford Holy Trinity | ancient parish | until 1547
|
| Thetford St. Andrew | ancient parish | until 1546
|
| Thetford St. Bennet | ancient parish | before the reign of Edward III
|
| Thetford St. Cuthbert | ancient parish, civil parish | civil parish until 1924
|
| Thetford St. Edmund | ancient parish | no history available
|
| Thetford St. Etheldred | ancient parish | until 1533
|
| Thetford St. George | ancient parish | no history available
|
| Thetford St. Giles | ancient parish | until 14th century
|
| Thetford St. Helen | ancient parish | no history available
|
| Thetford St. John | ancient parish | no history available
|
| Thetford St. Laurence | ancient parish | ended in the reign of Edward III
|
| Thetford St. Margaret | ancient parish | ended in the reign of Henry III
|
| Thetford St. Martin | ancient parish | ended in the reign of Edward III
|
| Thetford St. Mary Magdalen | ancient parish | no history available
|
| Thetford St. Mary the Great | ancient parish | until the 11th century
|
| Thetford St. Mary the Less | ancient parish, civil parish | civil parish until 1924
|
| Thetford St. Michael | ancient parish | before the 16th century
|
| Thetford St. Nicholas | ancient parish | until 1547
|
| Thetford St. Peter | ancient parish, civil parish | civil parish until 1924
|
| Weeting | ancient parish |
|
| Weeting All Saints | ancient parish | until 1651
|
| Weeting St. Mary | ancient parish | until 1651
|
| Weeting with Bromehill | civil parish | 1651 onward
|
| West Tofts | ancient parish, civil parish |
|
| Wilton | ancient parish, civil parish | until 1720, see Hockwold cum Wilton
|
