Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| South Brother | Island | -3 | New London | 41 17 22 N | 072 14 22 W |
| South Burying Ground | Cemetery | 65 | Hartford | 41 36 07 N | 072 48 03 W |
| South Canaan | Populated Place | 200 | Litchfield | 41 57 42 N | 073 20 00 W |
| South Catholic High School | School | 30 | Hartford | 41 44 03 N | 072 40 50 W |
| South Cemetery | Cemetery | 282 | Hartford | 41 46 06 N | 072 58 10 W |
| South Cemetery | Cemetery | 174 | Litchfield | 41 30 58 N | 073 21 57 W |
| South Cemetery | Cemetery | 80 | Litchfield | 41 32 27 N | 073 12 31 W |
| South Cemetery | Cemetery | 232 | Litchfield | 41 45 53 N | 073 03 33 W |
| South Cemetery | Cemetery | 430 | Litchfield | 41 56 40 N | 073 12 26 W |
| South Cemetery | Cemetery | 410 | Litchfield | 41 59 02 N | 073 05 03 W |
| South Cemetery | Cemetery | 141 | Windham | 41 45 58 N | 072 03 27 W |
| South Cemetery | Cemetery | 65 | Windham | 41 46 40 N | 071 57 10 W |
| South Cemetery | Cemetery | 115 | Windham | 41 52 21 N | 071 57 48 W |
| South Central Rehabilitation Center | Building | 15 | New Haven | 41 17 53 N | 072 55 55 W |
| South Chaplin | Populated Place | 89 | Windham | 41 46 36 N | 072 07 52 W |
| South Chaplin Cemetery | Cemetery | 95 | Windham | 41 46 20 N | 072 08 00 W |
| South Chippen Hill School | School | 201 | Hartford | 41 41 08 N | 072 58 25 W |
| South Chism Brook | Stream | | Windham | 41 54 01 N | 072 09 37 W |
| South Commons Industrial Park | Locale | 85 | New Haven | 41 35 44 N | 073 03 32 W |
| South Congregational Church | Church | 52 | Hartford | 41 39 47 N | 072 46 49 W |
| South Congregational Church | Church | 21 | Hartford | 41 45 34 N | 072 40 32 W |
| South Congregational Church | Church | 4 | Hartford | 41 46 33 N | 072 36 47 W |
| South Congregational Church | Church | 68 | Hartford | 41 57 03 N | 072 47 22 W |
| South Congregational Church | Church | 15 | Middlesex | 41 33 27 N | 072 38 54 W |
| South Congregational Church | Church | 100 | New Haven | 41 32 08 N | 073 02 03 W |
| South Cottage | Building | 30 | Hartford | 41 47 39 N | 072 42 59 W |
| South Cove | Bay | -4 | Middlesex | 41 16 36 N | 072 21 49 W |
| South Cove | Bay | 0 | Middlesex | 41 20 36 N | 072 23 02 W |
| South Coventry | Populated Place | 163 | Tolland | 41 46 12 N | 072 18 18 W |
| South Coventry Dam | Dam | 89 | Tolland | 41 45 42 N | 072 16 22 W |
| South Coventry Station | Locale | 86 | Tolland | 41 45 47 N | 072 16 14 W |
| South Elementary School | School | 54 | Hartford | 41 55 08 N | 072 38 19 W |
| South Ellsworth | Populated Place | 371 | Litchfield | 41 49 08 N | 073 25 45 W |
| South End | Locale | 9 | Fairfield | 41 01 56 N | 073 32 53 W |
| South End | Populated Place | 0 | Fairfield | 41 02 23 N | 073 32 13 W |
| South End | Populated Place | 7 | New Haven | 41 14 38 N | 072 53 38 W |
| South End Cemetery | Cemetery | 57 | Hartford | 41 34 37 N | 072 52 20 W |
| South End Community Center Branch Stamford Public Library | Building | 6 | Fairfield | 41 02 40 N | 073 32 18 W |
| South End Fire House | Building | 77 | Hartford | 41 55 03 N | 072 44 16 W |
| South End Historic District | Park | 1 | Fairfield | 41 02 27 N | 073 32 21 W |
| South End Playground | Park | 25 | Hartford | 41 43 47 N | 072 40 06 W |
| South End Point | Cape | 3 | New Haven | 41 14 33 N | 072 52 50 W |
| South End School | School | 42 | Hartford | 41 34 09 N | 072 52 42 W |
| South End School (historical) | School | 45 | Hartford | 41 34 02 N | 072 52 26 W |
| South End Senior Citizens Center | Building | 18 | Hartford | 41 44 12 N | 072 36 56 W |
| South Farms | Locale | 32 | Middlesex | 41 32 59 N | 072 37 07 W |
| South Farms | Populated Place | 6 | Middlesex | 41 33 15 N | 072 38 34 W |
| South Fork Hockanum River | Stream | | Hartford | 41 46 31 N | 072 34 05 W |
| South Glastonbury | Populated Place | 48 | Hartford | 41 40 01 N | 072 35 48 W |
| South Glastonbury Historic District | Park | 21 | Hartford | 41 40 03 N | 072 36 06 W |
| South Glastonbury Library | Building | 13 | Hartford | 41 40 05 N | 072 36 31 W |
| South Glastonbury Post Office | Post Office | 23 | Hartford | 41 40 04 N | 072 36 07 W |
| South Green | Park | 25 | Hartford | 41 45 24 N | 072 40 29 W |
| South Kent | Populated Place | 122 | Litchfield | 41 40 46 N | 073 28 14 W |
| South Kent School | School | 170 | Litchfield | 41 40 34 N | 073 28 47 W |
| South Killingly | Populated Place | 172 | Windham | 41 47 28 N | 071 49 59 W |
| South Killingly Congregational Church | Church | 164 | Windham | 41 47 29 N | 071 50 03 W |
| South Lyme | Populated Place | 13 | New London | 41 18 19 N | 072 15 30 W |
| South Lyme Post Office | Post Office | 12 | New London | 41 17 50 N | 072 15 30 W |
| South Main and Washington Street Historic District | Park | 11 | Fairfield | 41 06 21 N | 073 25 10 W |
| South Meriden | Populated Place | 37 | New Haven | 41 30 58 N | 072 50 01 W |
| South Meriden Shopping Center | Locale | 33 | New Haven | 41 31 08 N | 072 49 43 W |
| South Meriden United Methodist Church | Church | 28 | New Haven | 41 31 09 N | 072 49 51 W |
| South Middle School | School | 27 | Hartford | 41 44 03 N | 072 40 49 W |
| South Mountain | Summit | 215 | Hartford | 41 33 22 N | 072 49 22 W |
| South Mountain | Summit | 314 | Hartford | 41 38 55 N | 072 56 50 W |
| South Nepaug Brook | Stream | | Litchfield | 41 49 47 N | 073 00 13 W |
| South Norfolk | Populated Place | 354 | Litchfield | 41 55 23 N | 073 12 26 W |
| South Norwalk | Populated Place | 1 | Fairfield | 41 05 37 N | 073 25 07 W |
| South Norwalk Boat Club | Locale | 0 | Fairfield | 41 05 33 N | 073 24 39 W |
| South Norwalk Reservoir | Reservoir | 83 | Fairfield | 41 10 19 N | 073 26 58 W |
| South Norwalk Reservoir Dam | Dam | 83 | Fairfield | 41 10 19 N | 073 26 58 W |
| South Norwalk Station (historical) | Locale | 30 | Fairfield | 41 05 44 N | 073 25 33 W |
| South Pavilion Hospital | Hospital | 16 | New Haven | 41 18 14 N | 072 56 10 W |
| South Pine Creek Beach | Beach | 0 | Fairfield | 41 07 12 N | 073 16 07 W |
| South Pond | Lake | 210 | Fairfield | 41 20 01 N | 073 21 16 W |
| South Pond | Reservoir | 526 | Litchfield | 42 00 00 N | 073 28 10 W |
| South Pond | Reservoir | 522 | Litchfield | 42 00 20 N | 073 28 07 W |
| South Pond Dam | Dam | 526 | Litchfield | 42 00 00 N | 073 28 10 W |
| South Reservoir | Reservoir | 84 | Hartford | 41 44 36 N | 072 46 58 W |
| South Reservoir Dam | Dam | 84 | Hartford | 41 44 36 N | 072 46 58 W |
| South Reservoir Dike | Dam | 103 | Hartford | 41 44 18 N | 072 46 46 W |
| South Ridge Park | Park | 204 | Windham | 41 41 02 N | 072 12 53 W |
| South School | School | 95 | Fairfield | 41 07 55 N | 073 29 27 W |
| South School | School | 85 | Hartford | 41 45 20 N | 072 31 10 W |
| South School | School | 68 | Hartford | 41 51 34 N | 072 48 43 W |
| South School | School | 37 | Hartford | 41 59 43 N | 072 35 56 W |
| South School | School | 167 | Litchfield | 41 47 35 N | 073 07 13 W |
| South School | School | 20 | Middlesex | 41 44 33 N | 072 38 00 W |
| South Side Elementary School | School | 148 | Hartford | 41 39 40 N | 072 57 06 W |
| South Side Plaza Shopping Center | Locale | 27 | Fairfield | 41 17 18 N | 073 04 35 W |
| South Side School | School | 89 | Hartford | 41 40 10 N | 072 56 42 W |
| South Spectacle Pond | Lake | 359 | Litchfield | 41 42 59 N | 073 25 08 W |
| South Street Cemetery | Cemetery | 134 | Tolland | 41 46 24 N | 072 22 49 W |
| South Street School | School | 114 | Fairfield | 41 23 10 N | 073 26 35 W |
| South Street School | School | 58 | Hartford | 41 57 46 N | 072 39 40 W |
| South United Methodist Church | Church | 12 | Hartford | 41 50 14 N | 072 36 53 W |
| South United Methodist Church | Church | 19 | Middlesex | 41 32 56 N | 072 38 19 W |
| South West Ledge | Bar | -3 | New Haven | 41 14 04 N | 072 54 43 W |
| South West Recreation Center | Building | 50 | Hartford | 41 44 26 N | 072 41 38 W |
| South Wethersfield | Populated Place | 17 | Hartford | 41 41 25 N | 072 39 20 W |
| South Willington | Populated Place | 108 | Tolland | 41 51 19 N | 072 18 05 W |
| South Willington Brook | Stream | | Tolland | 41 51 01 N | 072 18 18 W |
| South Wilton | Populated Place | 44 | Fairfield | 41 10 05 N | 073 24 58 W |
| South Wilton Station | Locale | 43 | Fairfield | 41 09 50 N | 073 25 11 W |
| South Windham | Populated Place | 49 | Windham | 41 40 46 N | 072 10 13 W |
| South Windham Congregational Church | Church | 61 | Windham | 41 40 48 N | 072 10 16 W |
| South Windsor | Populated Place | 27 | Hartford | 41 50 56 N | 072 34 18 W |
| South Windsor | Populated Place | 11 | Hartford | 41 49 25 N | 072 37 16 W |
| South Windsor Community Center | Building | 54 | Hartford | 41 50 32 N | 072 33 03 W |