Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Blacksburg Elementary School | School | 240 | Cherokee | 35 07 07 N | 081 31 09 W |
| Blacksburg High School | School | 241 | Cherokee | 35 06 50 N | 081 30 53 W |
| Blacksburg Post Office | Post Office | 236 | Cherokee | 35 07 13 N | 081 31 03 W |
| Blacksburg Presbyterian Church (historical) | Church | 240 | Cherokee | 35 07 08 N | 081 31 02 W |
| Blackstock | Populated Place | 189 | Chester | 34 33 31 N | 081 09 08 W |
| Blackstock Baptist Church | Church | 189 | Chester | 34 33 30 N | 081 08 55 W |
| Blackstock Cemetery | Cemetery | 196 | Chester | 34 33 32 N | 081 09 01 W |
| Blackstock Church | Church | 183 | Chester | 34 34 04 N | 081 09 44 W |
| Blackstock Church | Church | 248 | Spartanburg | 34 54 19 N | 081 58 39 W |
| Blackstock Elementary School | School | 244 | Spartanburg | 34 54 08 N | 081 58 32 W |
| Blackstock Presbyterian Church | Church | 198 | Chester | 34 33 31 N | 081 09 02 W |
| Blackstock Road Cemetery | Cemetery | 194 | Union | 34 39 22 N | 081 49 25 W |
| Blackstock School (historical) | School | 301 | Spartanburg | 35 08 43 N | 082 11 40 W |
| Blackstocks Ford | Crossing | 122 | Union | 34 40 53 N | 081 48 14 W |
| Blackville | Populated Place | 89 | Barnwell | 33 21 29 N | 081 16 14 W |
| Blackville Church (historical) | Church | 83 | Barnwell | 33 20 58 N | 081 15 35 W |
| Blackville High School | School | 98 | Barnwell | 33 21 50 N | 081 15 49 W |
| Blackville Middle School | School | 91 | Barnwell | 33 22 03 N | 081 16 06 W |
| Blackville Post Office | Post Office | 88 | Barnwell | 33 21 20 N | 081 16 11 W |
| Blackville School (historical) | School | 83 | Barnwell | 33 20 58 N | 081 15 34 W |
| Blackville United Methodist Church | Church | 91 | Barnwell | 33 21 08 N | 081 16 09 W |
| Blackwell Bridge | Bridge | 439 | Oconee | 34 49 59 N | 083 10 31 W |
| Blackwell Island | Island | 15 | Marion | 34 09 26 N | 079 27 53 W |
| Blackwell Lake | Reservoir | 181 | York | 35 01 24 N | 081 25 29 W |
| Blackwell Mill Stream | Stream | | Chesterfield | 34 23 41 N | 080 17 13 W |
| Blackwell Millpond | Reservoir | 68 | Chesterfield | 34 24 14 N | 080 16 55 W |
| Blackwell Millpond Dam D-3187 | Dam | 68 | Chesterfield | 34 24 14 N | 080 16 55 W |
| Blackwell Pond | Reservoir | 26 | Florence | 34 02 43 N | 079 49 05 W |
| Blackwell Pond Dam D-3569 | Dam | 26 | Florence | 34 02 43 N | 079 49 05 W |
| Blackwells Mill (historical) | Locale | 75 | Chesterfield | 34 24 11 N | 080 16 57 W |
| Blaco Creek Cemetery | Cemetery | 27 | Berkeley | 33 17 08 N | 080 15 29 W |
| Bladen | Populated Place | 66 | Darlington | 34 20 36 N | 080 04 50 W |
| Blaine Post Office (historical) | Post Office | 289 | Anderson | 34 46 55 N | 082 32 46 W |
| Blair | Populated Place | 119 | Fairfield | 34 25 18 N | 081 23 46 W |
| Blairs Ferry (historical) | Crossing | 83 | Newberry | 34 25 09 N | 081 24 21 W |
| Blairsville | Populated Place | 199 | York | 34 54 55 N | 081 21 01 W |
| Blake | Populated Place | 3 | Colleton | 32 41 31 N | 080 46 09 W |
| Blake Church | Church | 4 | Williamsburg | 33 40 19 N | 079 30 06 W |
| Blake Dale School (historical) | School | 294 | Anderson | 34 43 24 N | 082 34 22 W |
| Blake Lake | Lake | 14 | Hampton | 32 43 53 N | 081 23 46 W |
| Blake Plantation Pond Number One D-2607 Dam | Dam | 20 | Hampton | 32 44 49 N | 081 22 05 W |
| Blake Plantation Pond Number Two D-2608 Dam | Dam | 17 | Hampton | 32 44 43 N | 081 22 59 W |
| Blake School | School | 201 | Greenwood | 34 10 58 N | 082 09 15 W |
| Blake Siding | Locale | 5 | Colleton | 32 42 42 N | 080 46 25 W |
| Blakedale | Populated Place | 197 | Greenwood | 34 13 29 N | 082 11 38 W |
| Blakely | Populated Place | 18 | Williamsburg | 33 29 41 N | 079 45 24 W |
| Blakely School | School | 16 | Williamsburg | 33 30 26 N | 079 45 46 W |
| Blakeney Cemetery | Cemetery | 123 | Chesterfield | 34 45 33 N | 080 28 42 W |
| Blakles, Caldwells, and Strouds Cemetery | Cemetery | 153 | Chester | 34 37 39 N | 080 58 50 W |
| Blakley Crossroads | Populated Place | 151 | Lancaster | 34 35 03 N | 080 50 48 W |
| Blakneys Bridge (historical) | Bridge | 84 | Kershaw | 34 33 59 N | 080 22 33 W |
| Blalock Cemetery | Cemetery | 202 | Cherokee | 35 05 25 N | 081 26 26 W |
| Bland Cemetery | Cemetery | 165 | Edgefield | 33 50 19 N | 081 53 12 W |
| Bland Church | Church | 168 | Edgefield | 33 49 37 N | 081 51 28 W |
| Bland Lake | Lake | 30 | Sumter | 33 53 60 N | 080 34 09 W |
| Bland School (historical) | School | 166 | Edgefield | 33 49 37 N | 081 51 26 W |
| Blaney Baptist Church | Church | 127 | Kershaw | 34 10 08 N | 080 47 30 W |
| Blaney Elementary School | School | 105 | Kershaw | 34 11 04 N | 080 47 14 W |
| Blaney Hills | Populated Place | 97 | Kershaw | 34 10 11 N | 080 46 14 W |
| Blaney West (subdivision) | Populated Place | 117 | Kershaw | 34 10 02 N | 080 48 31 W |
| Blanket Point | Cape | 11 | Hampton | 32 39 33 N | 081 24 16 W |
| Blankmanship Branch | Stream | | York | 35 03 50 N | 080 56 52 W |
| Blanton Cemetery | Cemetery | 22 | Berkeley | 33 08 03 N | 080 12 12 W |
| Blanton Cemetery | Cemetery | 22 | Horry | 34 08 25 N | 078 58 54 W |
| Blanton Cemetery | Cemetery | 25 | Horry | 34 09 19 N | 079 03 52 W |
| Blanton Creek | Stream | | Cherokee | 35 00 54 N | 081 37 01 W |
| Bleases Crossroads | Populated Place | 147 | Saluda | 34 03 31 N | 081 48 46 W |
| Blenheim | Populated Place | 36 | Marlboro | 34 30 39 N | 079 39 10 W |
| Blenheim Elementary School | School | 38 | Marlboro | 34 30 27 N | 079 39 25 W |
| Blenheim Lookout Tower | Tower | 39 | Marlboro | 34 29 40 N | 079 34 47 W |
| Blenheim Middle School | School | 35 | Marlboro | 34 30 15 N | 079 39 18 W |
| Blenheim School | School | 39 | Marlboro | 34 29 25 N | 079 38 40 W |
| Blessed Home School (historical) | School | 92 | Barnwell | 33 28 58 N | 081 22 51 W |
| Blessed Sacrament Church | Church | 8 | Charleston | 32 41 09 N | 080 04 52 W |
| Blessed Sacrament School | School | 2 | Charleston | 32 46 54 N | 079 58 55 W |
| Blessing Plantation | Locale | 9 | Berkeley | 33 03 28 N | 079 52 23 W |
| Blind Creek | Stream | | Charleston | 32 56 39 N | 079 37 03 W |
| Block Island Creek | Stream | | Charleston | 32 41 53 N | 079 53 53 W |
| Block School Number 2 (historical) | School | 274 | Oconee | 34 35 45 N | 083 04 32 W |
| Blocker Cemetery | Cemetery | 116 | Edgefield | 33 51 56 N | 081 59 47 W |
| Blocker Lake | Lake | 12 | Marion | 34 04 07 N | 079 15 29 W |
| Blood Hill Creek | Stream | | Hampton | 32 53 23 N | 081 11 29 W |
| Bloody Dick Swamp | Swamp | 5 | Charleston | 32 44 03 N | 080 05 40 W |
| Bloody Point | Cape | 1 | Beaufort | 32 04 53 N | 080 52 32 W |
| Bloody Point | Cape | 0 | Charleston | 32 37 05 N | 080 10 01 W |
| Bloody Point Range | Channel | 0 | Jasper | 32 01 01 N | 080 48 18 W |
| Bloom Hill Cemetery | Cemetery | 67 | Sumter | 33 47 03 N | 080 33 47 W |
| Bloom Hill School (historical) | School | 63 | Sumter | 33 47 49 N | 080 32 05 W |
| Bloomhill Church (historical) | Church | 63 | Sumter | 33 47 49 N | 080 32 06 W |
| Bloomingvale | Populated Place | 12 | Williamsburg | 33 33 02 N | 079 36 24 W |
| Bloomingvale Baptist Church | Church | 16 | Williamsburg | 33 33 16 N | 079 36 36 W |
| Bloomingvale Cemetery | Cemetery | 15 | Williamsburg | 33 33 18 N | 079 36 37 W |
| Bloomingvale School | School | 16 | Williamsburg | 33 33 18 N | 079 36 35 W |
| Bloomsdale School (historical) | School | 95 | Aiken | 33 21 29 N | 081 44 54 W |
| Bloomville | Populated Place | 39 | Clarendon | 33 38 06 N | 080 09 41 W |
| Bloomville Church | Church | 38 | Clarendon | 33 37 56 N | 080 10 01 W |
| Bloomville School (historical) | School | 38 | Clarendon | 33 37 54 N | 080 10 00 W |
| Blossom | Populated Place | 19 | Florence | 33 56 48 N | 079 34 21 W |
| Blossom School | School | 23 | Florence | 33 56 50 N | 079 34 24 W |
| Blountville | Populated Place | 14 | Hampton | 32 41 48 N | 080 51 05 W |
| Blue Barker Creek | Stream | | Anderson | 34 25 14 N | 082 27 03 W |
| Blue Branch | Stream | | Cherokee | 34 59 34 N | 081 41 26 W |
| Blue Branch | Stream | | Edgefield | 33 46 33 N | 082 09 38 W |
| Blue Branch | Stream | | McCormick | 33 55 53 N | 082 13 47 W |
| Blue Branch | Stream | | Pickens | 34 45 10 N | 082 47 26 W |
| Blue Branch | Stream | | York | 34 49 22 N | 081 21 33 W |
| Blue Branch Church | Church | 198 | Cherokee | 35 00 42 N | 081 41 11 W |
| Blue Branch Church (historical) | Church | 187 | York | 34 52 29 N | 081 21 35 W |
| Blue Branch School (historical) | School | 140 | McCormick | 33 55 00 N | 082 14 07 W |
| Blue Brick | Populated Place | 17 | Marion | 34 13 25 N | 079 31 04 W |