Southern FL Division One South
Champions: Yate Town · Promoted: Yate Town, Evesham United (play-offs)
Split from Southern FL Division One East (2017) (2017–2018), Southern FL Division One West (2017) (2017–2018)
| Club | Stadium | City | Capacity |
|---|---|---|---|
| Bideford | The Sports Ground | Bideford18,196 people | 6,000 |
| Capacity not recorded yet | |||
| Bashley | Bashley Road | Bashley731 people | – |
| Bemerton Heath Harlequins | Moon Park | Salisbury45,477 people | – |
| Bishop's Cleeve | Kayte Lane | Bishop's Cleeve14,198 people | – |
| Bristol Manor Farm | The Creek | Bristol472,465 people | – |
| Cinderford Town | – | ||
| Cribbs | – | ||
| Didcot Town | Loop Meadow Stadium | Didcot32,186 people | – |
| Evesham United | The Spiers & Hartwell Jubilee Stadium | Evesham27,684 people | – |
| Exmouth Town | Southern Road | Exmouth35,499 people | – |
| Falmouth Town | Bickland Park | Falmouth21,797 people | – |
| Helston Athletic | – | ||
| Larkhall Athletic | Plain Ham | Bath94,092 people | – |
| Malvern Town | HD Anywhere Stadium | Malvern30,462 people | – |
| Melksham Town | Oakfield Stadium | Melksham18,076 people | – |
| Mousehole | – | ||
| Shaftesbury | – | ||
| Tavistock | Langsford Park | Tavistock12,677 people | – |
| Thatcham Town | – | ||
| Westbury United | Westbury16,406 people | – | |
| Willand Rovers | Silver Street | Willand3,477 people | – |
| Yate Town | The Jelf Stadium | Yate23,701 people | – |
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources