Local governments
S
| Name | Type | Notes |
|---|---|---|
| Sunderland Rural District Council | District Council | |
| Surbiton Borough Council | Borough Council | |
| Surrey County Council | County Council | |
| Sussex County Council | County Council | |
| Sutton Borough Council | Borough Council | |
| Sutton Borough Council | London Borough Council | |
| Sutton & Cheam Borough Council | Borough Council | |
| Sutton DC | District Council | |
| Sutton-in-Ashfield UDC | District Council | |
| Swaffham RDC | District Council | |
| Swale Borough Council | Borough Council | |
| Swansea Borough Council | Borough Council | |
| Swansea City Council | City Council | |
| Swindon Borough Council | Borough Council | |
| Swinton & Pendlebury UDC | District Council |