Southern FL Division One South
Champions: AFC Totton · Promoted: AFC Totton, Sholing (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 | |||
| AFC Totton | Snows Stadium | Totton and Eling28,653 people | – |
| Bashley | Bashley Road | Bashley731 people | – |
| Bishop's Cleeve | Kayte Lane | Bishop's Cleeve14,198 people | – |
| Bristol Manor Farm | The Creek | Bristol472,465 people | – |
| Cinderford Town | – | ||
| Evesham United | The Spiers & Hartwell Jubilee Stadium | Evesham27,684 people | – |
| Exmouth Town | Southern Road | Exmouth35,499 people | – |
| Frome Town | AlderSmith Stadium | Frome28,567 people | – |
| Hamworthy United | – | ||
| Larkhall Athletic | Plain Ham | Bath94,092 people | – |
| Lymington Town | – | ||
| Melksham Town | Oakfield Stadium | Melksham18,076 people | – |
| Paulton Rovers | First 4 Pools Stadium | Paulton6,503 people | – |
| Sholing | Mackoy Stadium | Southampton271,173 people | – |
| Slimbridge | – | ||
| Tavistock | Langsford Park | Tavistock12,677 people | – |
| Westbury United | Westbury16,406 people | – | |
| Willand Rovers | Silver Street | Willand3,477 people | – |
| Wimborne Town | The Cuthbury Stadium | Wimborne Minster9,059 people | – |
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources