Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Ashley Place (historical) | Populated Place | 77 | Barnwell | 33 10 06 N | 081 38 44 W |
| Bannon Point | Cape | 57 | Barnwell | 33 13 07 N | 081 22 03 W |
| Barbers Branch School | School | 54 | Barnwell | 33 11 17 N | 081 14 01 W |
| Barnwell | Populated Place | 66 | Barnwell | 33 14 42 N | 081 21 31 W |
| Barnwell Academy (historical) | School | 63 | Barnwell | 33 14 47 N | 081 21 54 W |
| Barnwell Army Air Field (historical) | Military (Historical) | 76 | Barnwell | 33 15 30 N | 081 23 20 W |
| Barnwell County | Civil | 77 | Barnwell | 33 16 01 N | 081 27 59 W |
| Barnwell County Airport | Airport | 77 | Barnwell | 33 15 28 N | 081 23 17 W |
| Barnwell County Hospital | Hospital | 70 | Barnwell | 33 15 20 N | 081 21 40 W |
| Barnwell County Library | Building | 63 | Barnwell | 33 14 29 N | 081 21 27 W |
| Barnwell Elementary School | School | 60 | Barnwell | 33 14 23 N | 081 21 23 W |
| Barnwell High School | School | 61 | Barnwell | 33 13 46 N | 081 21 32 W |
| Barnwell Hill | Summit | 70 | Barnwell | 33 14 41 N | 081 21 49 W |
| Barnwell Mennonite Church | Church | 70 | Barnwell | 33 14 45 N | 081 21 14 W |
| Barnwell Post Office | Post Office | 67 | Barnwell | 33 14 36 N | 081 21 54 W |
| Barnwell Presbyterian Church | Church | 64 | Barnwell | 33 14 34 N | 081 21 42 W |
| Barnwell State Park | Park | 73 | Barnwell | 33 19 47 N | 081 18 14 W |
| Barnwell Station (historical) | Locale | 52 | Barnwell | 33 14 14 N | 081 21 49 W |
| Barnwell United Methodist Church | Church | 67 | Barnwell | 33 14 37 N | 081 21 48 W |
| Bates Cemetery | Cemetery | 97 | Barnwell | 33 21 12 N | 081 28 39 W |
| Bates Pond D-3072 Dam | Dam | 86 | Barnwell | 33 22 01 N | 081 24 11 W |
| Beaverdam Bridge | Bridge | 71 | Barnwell | 33 16 46 N | 081 13 57 W |
| Bell Pond Church | Church | 81 | Barnwell | 33 19 36 N | 081 26 17 W |
| Bell Pond School (historical) | School | 76 | Barnwell | 33 19 34 N | 081 26 16 W |
| Bells Mill (historical) | Locale | 73 | Barnwell | 33 22 01 N | 081 26 14 W |
| Bethlehem Baptist Church | Church | 68 | Barnwell | 33 14 44 N | 081 21 49 W |
| Big Branch | Stream | | Barnwell | 33 10 03 N | 081 28 11 W |
| Big Fork Church (historical) | Church | 77 | Barnwell | 33 08 05 N | 081 16 41 W |
| Big Forks School (historical) | School | 67 | Barnwell | 33 08 55 N | 081 15 58 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 |
| Blessed Home School (historical) | School | 92 | Barnwell | 33 28 58 N | 081 22 51 W |
| Bodiford Mill Creek | Stream | | Barnwell | 33 09 17 N | 081 27 40 W |
| Boggy Gut Branch | Stream | | Barnwell | 33 05 41 N | 081 36 41 W |
| Boiling Spring | Spring | 42 | Barnwell | 33 08 16 N | 081 26 00 W |
| Boiling Spring School (historical) | School | 65 | Barnwell | 33 08 03 N | 081 25 46 W |
| Boiling Springs | Populated Place | 59 | Barnwell | 33 08 07 N | 081 25 52 W |
| Boiling Springs Presbyterian Church | Church | 64 | Barnwell | 33 08 04 N | 081 25 46 W |
| Bolen Pond | Reservoir | 62 | Barnwell | 33 18 33 N | 081 25 44 W |
| Bolens Fishing Lake D-3063 Dam | Dam | 62 | Barnwell | 33 18 33 N | 081 25 44 W |
| Bolens Pond D-3055 Dam | Dam | 76 | Barnwell | 33 24 25 N | 081 18 53 W |
| Booker Pond | Swamp | 81 | Barnwell | 33 18 55 N | 081 15 33 W |
| Boylston Mill (historical) | Locale | 72 | Barnwell | 33 26 06 N | 081 20 54 W |
| Brinleys Mill (historical) | Locale | 42 | Barnwell | 33 13 20 N | 081 42 14 W |
| Browns Church | Church | 60 | Barnwell | 33 15 60 N | 081 18 38 W |
| Browns School (historical) | School | 75 | Barnwell | 33 15 55 N | 081 17 35 W |
| Buck Creek | Stream | | Barnwell | 33 17 27 N | 081 25 57 W |
| Buckmire Pond (historical) | Lake | 83 | Barnwell | 33 21 31 N | 081 13 39 W |
| Caddins Branch | Stream | | Barnwell | 33 07 03 N | 081 13 41 W |
| Calvary Church | Church | 73 | Barnwell | 33 23 33 N | 081 15 35 W |
| Calvary School (historical) | School | 94 | Barnwell | 33 24 29 N | 081 20 26 W |
| Canaan Church (historical) | Church | 93 | Barnwell | 33 16 23 N | 081 36 07 W |
| Canaan Fair Church | Church | 107 | Barnwell | 33 24 39 N | 081 25 26 W |
| Carter Plaza Shopping Center | Locale | 68 | Barnwell | 33 14 37 N | 081 21 52 W |
| Castles Pond (historical) | Reservoir | 30 | Barnwell | 33 10 59 N | 081 43 44 W |
| Cedar Grove School (historical) | School | 77 | Barnwell | 33 19 14 N | 081 25 54 W |
| Chaney Grove Church (historical) | Church | 62 | Barnwell | 33 12 41 N | 081 19 26 W |
| Church of God | Church | 64 | Barnwell | 33 14 39 N | 081 22 00 W |
| Church of God | Church | 99 | Barnwell | 33 23 47 N | 081 24 55 W |
| Church of God | Church | 90 | Barnwell | 33 21 35 N | 081 16 02 W |
| Collums Pond D-3071 Dam | Dam | 74 | Barnwell | 33 22 37 N | 081 14 59 W |
| Corleys Mill Pond (historical) | Reservoir | 60 | Barnwell | 33 17 22 N | 081 31 07 W |
| County Memory Gardens | Cemetery | 76 | Barnwell | 33 16 49 N | 081 20 59 W |
| Craig Pond School (historical) | School | 82 | Barnwell | 33 17 18 N | 081 29 08 W |
| Craigs Pond | Lake | 78 | Barnwell | 33 17 16 N | 081 28 44 W |
| Cypress Pond (historical) | Lake | 71 | Barnwell | 33 07 05 N | 081 19 43 W |
| Daisy May Church (historical) | Church | 80 | Barnwell | 33 13 46 N | 081 39 34 W |
| Diamond School (historical) | School | 77 | Barnwell | 33 10 34 N | 081 23 44 W |
| Dicks Pond D-3069 Dam | Dam | 83 | Barnwell | 33 21 37 N | 081 24 29 W |
| Ditch Pond | Swamp | 109 | Barnwell | 33 25 08 N | 081 28 00 W |
| Dog Ferry (historical) | Crossing | 26 | Barnwell | 33 10 32 N | 081 46 10 W |
| Donora (historical) | Populated Place | 54 | Barnwell | 33 13 16 N | 081 30 59 W |
| Double Pond Church | Church | 83 | Barnwell | 33 17 52 N | 081 15 13 W |
| Double Pond School (historical) | School | 82 | Barnwell | 33 17 40 N | 081 15 13 W |
| Dry Branch | Stream | | Barnwell | 33 26 10 N | 081 13 50 W |
| Dry Branch School (historical) | School | 83 | Barnwell | 33 25 32 N | 081 15 22 W |
| Duck Pond | Swamp | 72 | Barnwell | 33 16 60 N | 081 13 20 W |
| Duck Pond Bay | Swamp | 63 | Barnwell | 33 14 44 N | 081 14 07 W |
| Dunbar Cemetery | Cemetery | 83 | Barnwell | 33 11 02 N | 081 32 02 W |
| Dunbarton (historical) | Populated Place | 85 | Barnwell | 33 11 46 N | 081 32 20 W |
| Dunbarton Fire Tower | Locale | 98 | Barnwell | 33 12 37 N | 081 35 24 W |
| Ebenezer Church | Church | 97 | Barnwell | 33 22 31 N | 081 27 47 W |
| Ebenezer Church | Church | 87 | Barnwell | 33 24 18 N | 081 18 13 W |
| Ebenezer School (historical) | School | 85 | Barnwell | 33 24 16 N | 081 18 14 W |
| Edgar A Brown Dam D-3064 | Dam | 54 | Barnwell | 33 14 49 N | 081 22 05 W |
| Edgar A Brown Lake | Reservoir | 54 | Barnwell | 33 14 49 N | 081 22 05 W |
| Edisto Experimental Station | Locale | 98 | Barnwell | 33 21 52 N | 081 19 42 W |
| Edisto Pond Dam D-3061 | Dam | 87 | Barnwell | 33 21 07 N | 081 18 41 W |
| Edwards Junior High School | School | 109 | Barnwell | 33 23 59 N | 081 24 19 W |
| Elko | Populated Place | 103 | Barnwell | 33 22 50 N | 081 22 46 W |
| Elko Baptist Church | Church | 103 | Barnwell | 33 22 45 N | 081 22 46 W |
| Ellenton (historical) | Populated Place | 28 | Barnwell | 33 11 56 N | 081 45 21 W |
| Ellis Store (historical) | Locale | 57 | Barnwell | 33 08 52 N | 081 26 41 W |
| Episcopal Church of the Holy Apostles | Church | 58 | Barnwell | 33 14 24 N | 081 21 46 W |
| Ernest Rand Memorial State Forest | Forest | 85 | Barnwell | 33 18 36 N | 081 29 30 W |
| Fair Branch Church (historical) | Church | 102 | Barnwell | 33 18 02 N | 081 36 15 W |
| Fair Branch School (historical) | School | 97 | Barnwell | 33 18 19 N | 081 36 20 W |
| Fairmont Church (historical) | Church | 85 | Barnwell | 33 21 51 N | 081 31 32 W |
| Farrells Mill | Populated Place | 69 | Barnwell | 33 20 20 N | 081 21 05 W |
| Fiddle Pond | Lake | 65 | Barnwell | 33 08 10 N | 081 20 40 W |
| First Assembly of God Church | Church | 65 | Barnwell | 33 13 54 N | 081 21 16 W |
| First Baptist Church | Church | 73 | Barnwell | 33 14 52 N | 081 20 56 W |
| First Baptist Church | Church | 107 | Barnwell | 33 24 11 N | 081 25 24 W |
| First Church | Church | 89 | Barnwell | 33 21 27 N | 081 16 16 W |
| Flowers Point | Cape | 27 | Barnwell | 33 11 51 N | 081 45 23 W |