| Locality | Post Code |
|---|---|
| Sherington | MK16 |
| Simpson | MK6 |
| Springfield | MK6 |
| Stacey Bushes | MK12 |
| Stantonbury | MK14 |
| Stantonbury Fields | MK14 |
| Stoke Goldington | MK16 |
| Stonebridge | MK13 0DE, MK13 0DX |
| Stony Stratford | MK11 |
| Tattenhoe | MK4 |
| Tattenhoe Park | MK4 |
| Tinkers Bridge | MK6 |
| Tongwell | MK15 8BF, MK15 8JA |
| Two Mile Ash | MK8 |
| Tyringham | MK16 |
| Walnut Tree | MK7 |
| Walton | MK7 |
| Walton Hall | MK7 6BA, MK7 6BA, MK7 … |
| Walton Park | MK7 |
| Warrington | MK46 |
| Wavendon | MK17 |
| Wavendon Gate | MK7 |
| West Ashland | MK6 4BB |
| West Granby | MK6 4AE |
| Westcroft | MK4 |
| Weston Underwood | MK46 |