Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Threemile Branch | Stream | | Sumter | 33 56 33 N | 080 04 22 W |
| Tiller Circle | Populated Place | 45 | Sumter | 33 52 47 N | 080 20 27 W |
| Tindal | Populated Place | 55 | Sumter | 33 49 18 N | 080 21 24 W |
| Tindal School | School | 52 | Sumter | 33 49 08 N | 080 20 58 W |
| Tirzah Presbyterian Church | Church | 71 | Sumter | 34 00 10 N | 080 26 36 W |
| Tiverton Church | Church | 58 | Sumter | 33 51 02 N | 080 31 15 W |
| Touchberry Lower Pond | Reservoir | 26 | Sumter | 33 41 31 N | 080 31 41 W |
| Touchberry Lower Pond Dam D-1586 | Dam | 26 | Sumter | 33 41 31 N | 080 31 41 W |
| Toumey Hospital | Hospital | 51 | Sumter | 33 55 26 N | 080 20 32 W |
| Tram Road School (historical) | School | 44 | Sumter | 33 54 41 N | 080 16 05 W |
| Trinity Baptist Church | Church | 52 | Sumter | 33 55 14 N | 080 21 19 W |
| Trinity Church | Church | 38 | Sumter | 33 58 29 N | 080 04 00 W |
| Trinity Church (historical) | Church | 39 | Sumter | 34 02 28 N | 080 34 09 W |
| Trinity Church (historical) | Church | 37 | Sumter | 33 56 31 N | 080 02 22 W |
| Trinity Cross Roads | Populated Place | 40 | Sumter | 33 58 01 N | 080 04 14 W |
| Trinity United Methodist Church | Church | 52 | Sumter | 33 55 14 N | 080 20 49 W |
| Turkey Creek | Stream | | Sumter | 33 52 10 N | 080 20 18 W |
| Twin Lakes | Populated Place | 57 | Sumter | 33 53 39 N | 080 24 15 W |
| Union Cemetery | Cemetery | 91 | Sumter | 34 08 18 N | 080 30 11 W |
| Union Church | Church | 68 | Sumter | 33 53 02 N | 080 31 11 W |
| Union School (historical) | School | 93 | Sumter | 34 08 20 N | 080 30 07 W |
| Union Station African Methodist Episcopal Church | Church | 50 | Sumter | 33 54 03 N | 080 20 24 W |
| University of South Carolina-Sumter | School | 53 | Sumter | 33 56 04 N | 080 22 25 W |
| Upper Deerwood Lake | Reservoir | 51 | Sumter | 33 55 55 N | 080 23 59 W |
| Upper Deerwood Lake Dam | Dam | 51 | Sumter | 33 55 55 N | 080 23 59 W |
| Walnut Hills | Populated Place | 54 | Sumter | 33 56 59 N | 080 20 44 W |
| Warwick Estates | Populated Place | 46 | Sumter | 33 53 07 N | 080 22 52 W |
| Washington School | School | 52 | Sumter | 33 55 16 N | 080 20 42 W |
| Wateree Hunting Club (historical) | Locale | 31 | Sumter | 33 56 14 N | 080 36 26 W |
| Wateree Swamp | Swamp | 27 | Sumter | 33 51 28 N | 080 35 36 W |
| Wateree Swamp Hunting Club | Locale | 30 | Sumter | 33 55 05 N | 080 36 59 W |
| Wayman Chapel | Church | 100 | Sumter | 33 56 59 N | 080 31 44 W |
| WDXY-AM (Sumter) | Tower | 40 | Sumter | 33 54 17 N | 080 19 24 W |
| Webb Cemetery | Cemetery | 49 | Sumter | 33 54 12 N | 080 19 53 W |
| Wedgefield | Populated Place | 76 | Sumter | 33 53 34 N | 080 31 05 W |
| Wedgefield Baptist Church | Church | 72 | Sumter | 33 53 34 N | 080 30 56 W |
| Wedgefield Presbyterian Church | Church | 71 | Sumter | 33 53 29 N | 080 30 57 W |
| Wedgefield School | School | 73 | Sumter | 33 53 32 N | 080 30 57 W |
| Wedgewood | Populated Place | 64 | Sumter | 33 53 02 N | 080 30 45 W |
| Wedgewood Grove | Populated Place | 56 | Sumter | 33 54 43 N | 080 23 17 W |
| Weeks Pond | Reservoir | 57 | Sumter | 33 46 33 N | 080 27 08 W |
| Wen-le (subdivision) | Populated Place | 44 | Sumter | 33 55 56 N | 080 19 33 W |
| West Lake | Reservoir | 47 | Sumter | 33 53 07 N | 080 27 41 W |
| West Lake Dam D-2054 | Dam | 47 | Sumter | 33 53 07 N | 080 27 41 W |
| West Ridge | Populated Place | 56 | Sumter | 33 54 31 N | 080 23 39 W |
| Westberry School (historical) | School | 46 | Sumter | 34 00 53 N | 080 33 27 W |
| Westbury Lake | Lake | 30 | Sumter | 33 56 34 N | 080 34 36 W |
| Westhaven (subdivision) | Populated Place | 51 | Sumter | 33 55 28 N | 080 22 57 W |
| Westmark Plaza Shopping Center | Locale | 55 | Sumter | 33 57 16 N | 080 22 31 W |
| Wheeler Cemetery | Cemetery | 45 | Sumter | 33 53 59 N | 080 16 43 W |
| White Cemetery | Cemetery | 54 | Sumter | 33 57 58 N | 080 21 04 W |
| White Oak Slash Lake | Reservoir | 36 | Sumter | 34 04 55 N | 080 36 11 W |
| White Oak Slash Lake Dam D-1972 | Dam | 36 | Sumter | 34 04 55 N | 080 36 11 W |
| White-Dick Cemetery | Cemetery | 55 | Sumter | 33 58 11 N | 080 21 33 W |
| Whites Mill Branch | Stream | | Sumter | 33 59 33 N | 080 19 55 W |
| Whites Millpond | Reservoir | 43 | Sumter | 33 59 03 N | 080 19 27 W |
| Whites Millpond Dam D-1988 | Dam | 43 | Sumter | 33 59 03 N | 080 19 27 W |
| Whites Pond Crossroad | Populated Place | 43 | Sumter | 33 58 58 N | 080 19 43 W |
| WIBZ-FM (Wedgefield) | Tower | 67 | Sumter | 33 51 15 N | 080 31 46 W |
| Wilder School | School | 50 | Sumter | 33 53 53 N | 080 20 28 W |
| Williams Cemetery | Cemetery | 54 | Sumter | 33 56 27 N | 080 24 10 W |
| Williams-Brice Museum | Building | 52 | Sumter | 33 55 23 N | 080 20 41 W |
| Willow Drive School | School | 52 | Sumter | 33 56 11 N | 080 21 41 W |
| Willow Grove Cemetery | Cemetery | 38 | Sumter | 34 01 47 N | 080 35 59 W |
| Willow Grove Church | Church | 41 | Sumter | 34 01 48 N | 080 34 58 W |
| Willow Grove School | School | 41 | Sumter | 34 01 47 N | 080 35 02 W |
| Wilson Hall School | School | 56 | Sumter | 33 56 08 N | 080 24 20 W |
| Wilsons Store | Locale | 36 | Sumter | 33 56 21 N | 080 09 46 W |
| Windsor City Mobile Home Park | Populated Place | 52 | Sumter | 33 58 15 N | 080 23 52 W |
| Winn School | School | 50 | Sumter | 33 56 16 N | 080 21 54 W |
| Winter Park | Populated Place | 52 | Sumter | 33 55 04 N | 080 24 37 W |
| Wolf Bay School (historical) | School | 42 | Sumter | 33 53 48 N | 080 15 39 W |
| Wood Chapel Cemetery | Cemetery | 42 | Sumter | 33 52 40 N | 080 19 37 W |
| Woodland Church of Christ | Church | 54 | Sumter | 33 57 41 N | 080 25 39 W |
| Woods Bay State Park | Park | 37 | Sumter | 33 56 46 N | 079 59 34 W |
| Woods Millpond | Swamp | 37 | Sumter | 33 56 36 N | 079 59 23 W |
| WQMX-AM (Sumter) | Tower | 43 | Sumter | 33 55 17 N | 080 16 58 W |
| WRJA-FM (Sumter) | Tower | 44 | Sumter | 33 52 53 N | 080 16 13 W |
| WRJA-TV (Sumter) | Tower | 44 | Sumter | 33 52 53 N | 080 16 13 W |
| WSSC-AM (Sumter) | Tower | 43 | Sumter | 33 55 46 N | 080 19 28 W |
| Zion Baptist Church | Church | 52 | Sumter | 33 55 10 N | 080 20 49 W |
| Zion Church | Church | 37 | Sumter | 33 58 31 N | 079 56 43 W |
| Zoar Church | Church | 44 | Sumter | 33 51 07 N | 080 17 51 W |
| Ada (historical) | Populated Place | 122 | Union | 34 33 58 N | 081 31 42 W |
| Adams Ford | Crossing | 106 | Union | 34 36 55 N | 081 39 57 W |
| Adams Lake | Reservoir | 155 | Union | 34 47 18 N | 081 31 05 W |
| Adams Lake Dam D-2153 | Dam | 155 | Union | 34 47 18 N | 081 31 05 W |
| Adamsburg | Populated Place | 190 | Union | 34 47 28 N | 081 32 34 W |
| Adamsburg School (historical) | School | 187 | Union | 34 47 22 N | 081 32 18 W |
| Addis Branch | Stream | | Union | 34 48 55 N | 081 32 16 W |
| Antioch Church | Church | 193 | Union | 34 41 41 N | 081 38 06 W |
| Antioch Church (historical) | Church | 172 | Union | 34 39 40 N | 081 38 08 W |
| Askew Cemetery | Cemetery | 170 | Union | 34 51 50 N | 081 36 23 W |
| Augsburg Evangelical Lutheran Church | Church | 189 | Union | 34 42 36 N | 081 37 12 W |
| Avery Ford | Crossing | 88 | Union | 34 26 41 N | 081 32 24 W |
| Bailey Town (historical) | Populated Place | 178 | Union | 34 48 22 N | 081 32 24 W |
| Bald Rock | Locale | 212 | Union | 34 48 37 N | 081 33 38 W |
| Barkham School (historical) | School | 175 | Union | 34 46 18 N | 081 43 49 W |
| Beattys Bridge Hunt Camp | Locale | 121 | Union | 34 35 06 N | 081 35 09 W |
| Beattys Chapel | Church | 171 | Union | 34 39 35 N | 081 36 18 W |
| Beaty Bridge (historical) | Bridge | 98 | Union | 34 35 08 N | 081 35 32 W |
| Beaty Bridge School (historical) | School | 123 | Union | 34 35 12 N | 081 35 19 W |
| Beaver Dam | Populated Place | 106 | Union | 34 32 22 N | 081 32 42 W |
| Beaverdam Creek | Stream | | Union | 34 47 38 N | 081 43 05 W |
| Beddington Mountain | Summit | 242 | Union | 34 43 29 N | 081 48 17 W |
| Belmont Cemetery | Cemetery | 189 | Union | 34 38 33 N | 081 49 38 W |
| Belmont Church (historical) | Church | 187 | Union | 34 38 32 N | 081 49 39 W |
| Bethel African Methodist Episcopal Church | Church | 185 | Union | 34 42 47 N | 081 36 53 W |
| Bethel Church | Church | 196 | Union | 34 50 05 N | 081 33 59 W |
| Bethel United Methodist Church | Church | 192 | Union | 34 43 06 N | 081 35 50 W |