Before (end of 2020) (41 seats, Open Council Data)
Conservative 19 · Green 8 · Liberal Democrats 8 · Labour 3 · Other 3
After (end of 2021) (41 seats, Open Council Data)
Conservative 19 · Liberal Democrats 9 · Green 8 · Labour 3 · Other 2
Ward results
Seaford North2 seats
| C.S. Lambert | Liberal Democrats | 1,679 ✓ |
| L. Proudfoot | Conservative | 1,303 |
| A.G. Tlusty-Sheen | Labour | 347 |
| J. Meek | Green | 338 |