Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Parker Branch | Stream | | Barnwell | 33 10 10 N | 081 16 41 W |
| Parks Church (historical) | Church | 62 | Barnwell | 33 10 51 N | 081 40 16 W |
| Patterson Branch | Stream | | Barnwell | 33 10 32 N | 081 27 35 W |
| Patterson Mill | Populated Place | 55 | Barnwell | 33 10 43 N | 081 28 44 W |
| Patterson Mill School (historical) | School | 61 | Barnwell | 33 10 46 N | 081 28 43 W |
| Pattersons Bridge | Bridge | 38 | Barnwell | 33 10 34 N | 081 28 51 W |
| Pen Branch | Stream | | Barnwell | 33 06 16 N | 081 37 39 W |
| Peters Pond | Lake | 93 | Barnwell | 33 22 05 N | 081 18 38 W |
| Pilgrim Rest Church | Church | 82 | Barnwell | 33 25 33 N | 081 15 20 W |
| Pine Hill Church | Church | 87 | Barnwell | 33 26 09 N | 081 17 10 W |
| Pleasant Hill Church (historical) | Church | 103 | Barnwell | 33 20 06 N | 081 30 09 W |
| Pleasant Hill School (historical) | School | 86 | Barnwell | 33 19 29 N | 081 29 39 W |
| Pleasant Mount Church (historical) | Church | 97 | Barnwell | 33 09 50 N | 081 31 59 W |
| Pond B | Reservoir | 75 | Barnwell | 33 17 34 N | 081 32 45 W |
| Pond Five | Reservoir | 73 | Barnwell | 33 15 40 N | 081 33 35 W |
| Pond Four | Lake | 80 | Barnwell | 33 16 13 N | 081 34 04 W |
| Pond Two | Lake | 77 | Barnwell | 33 15 19 N | 081 35 05 W |
| Pump House Number 5 | Building | 27 | Barnwell | 33 11 53 N | 081 45 21 W |
| Pump House Number 6 | Building | 62 | Barnwell | 33 15 03 N | 081 33 28 W |
| Red Branch Church | Church | 57 | Barnwell | 33 13 55 N | 081 24 12 W |
| Redds Pond D-3050 Dam | Dam | 77 | Barnwell | 33 25 43 N | 081 16 47 W |
| Reedy Branch | Stream | | Barnwell | 33 20 22 N | 081 35 41 W |
| Reedy Branch Church | Church | 70 | Barnwell | 33 15 26 N | 081 17 10 W |
| Reedy Branch School (historical) | School | 73 | Barnwell | 33 15 42 N | 081 17 03 W |
| Reese Creek School (historical) | School | 83 | Barnwell | 33 26 54 N | 081 18 17 W |
| Reynold | Populated Place | 97 | Barnwell | 33 22 01 N | 081 19 49 W |
| Riley Mill Branch | Stream | | Barnwell | 33 10 23 N | 081 20 34 W |
| Robbins (historical) | Populated Place | 40 | Barnwell | 33 09 04 N | 081 39 18 W |
| Robbins Station | Locale | 35 | Barnwell | 33 08 54 N | 081 39 22 W |
| Rosemary (historical) | Populated Place | 82 | Barnwell | 33 21 13 N | 081 14 52 W |
| Rosemary Church | Church | 86 | Barnwell | 33 21 58 N | 081 25 59 W |
| Rosemary Church | Church | 64 | Barnwell | 33 08 17 N | 081 14 44 W |
| Rosemary Church | Church | 101 | Barnwell | 33 22 40 N | 081 28 09 W |
| Rosemary Creek | Stream | | Barnwell | 33 17 27 N | 081 25 57 W |
| Rosemary School | School | 65 | Barnwell | 33 08 23 N | 081 14 46 W |
| Rosemary School (historical) | School | 101 | Barnwell | 33 22 42 N | 081 28 09 W |
| Roundtree School (historical) | School | 93 | Barnwell | 33 09 57 N | 081 31 36 W |
| Sacred Heart Church | Church | 90 | Barnwell | 33 21 12 N | 081 16 08 W |
| Saint Albans Church | Church | 89 | Barnwell | 33 21 23 N | 081 16 20 W |
| Saint Andrews Roman Catholic Church | Church | 61 | Barnwell | 33 14 29 N | 081 21 43 W |
| Saint John School (historical) | School | 61 | Barnwell | 33 08 17 N | 081 25 25 W |
| Saint Johns Church | Church | 61 | Barnwell | 33 08 17 N | 081 25 25 W |
| Saint Luke Church (historical) | Church | 38 | Barnwell | 33 08 36 N | 081 37 49 W |
| Saint Marys Church | Church | 43 | Barnwell | 33 07 18 N | 081 35 35 W |
| Saint Marys School (historical) | School | 43 | Barnwell | 33 07 17 N | 081 35 36 W |
| Saint Matthews School (historical) | School | 90 | Barnwell | 33 25 06 N | 081 19 59 W |
| Saint Paul Baptist Church | Church | 74 | Barnwell | 33 14 46 N | 081 27 43 W |
| Saint Paul Church (historical) | Church | 78 | Barnwell | 33 15 32 N | 081 27 46 W |
| Saint Paul School (historical) | School | 78 | Barnwell | 33 15 32 N | 081 27 46 W |
| Saint Peter Baptist Church | Church | 101 | Barnwell | 33 22 28 N | 081 22 54 W |
| Saint Peters Church (historical) | Church | 98 | Barnwell | 33 22 18 N | 081 23 01 W |
| Saint Peters School (historical) | School | 98 | Barnwell | 33 22 17 N | 081 23 01 W |
| Sanders Cemetery | Cemetery | 69 | Barnwell | 33 09 46 N | 081 34 49 W |
| Sanders Old Mill (historical) | Locale | 51 | Barnwell | 33 12 11 N | 081 21 32 W |
| Savannah River Plant Pond B D-3078 Dam | Dam | 75 | Barnwell | 33 17 34 N | 081 32 45 W |
| Savannah River Plant Pond Dam Number Five D-3076 | Dam | 73 | Barnwell | 33 15 40 N | 081 33 35 W |
| Savannah River Plant Pond Dam Number Four D-3075 | Dam | 80 | Barnwell | 33 16 13 N | 081 34 04 W |
| Savannah River Plant Pond Number Two D-3074 Dam | Dam | 77 | Barnwell | 33 15 19 N | 081 35 05 W |
| Scott Cemetery | Cemetery | 90 | Barnwell | 33 18 27 N | 081 31 55 W |
| Second Baptist Church | Church | 67 | Barnwell | 33 14 59 N | 081 21 27 W |
| Second Mount Olive Church | Church | 76 | Barnwell | 33 09 45 N | 081 21 11 W |
| Seven Pines Baptist Church | Church | 71 | Barnwell | 33 14 28 N | 081 27 11 W |
| Seven Pines Cemetery | Cemetery | 75 | Barnwell | 33 15 12 N | 081 27 07 W |
| Seven Pines Church (historical) | Church | 74 | Barnwell | 33 15 10 N | 081 27 07 W |
| Sheepford Branch | Stream | | Barnwell | 33 23 55 N | 081 14 41 W |
| Shiloh Church (historical) | Church | 76 | Barnwell | 33 17 07 N | 081 20 41 W |
| Short Staple Plantation (historical) | Locale | 70 | Barnwell | 33 13 05 N | 081 18 27 W |
| Shrub Branch | Stream | | Barnwell | 33 19 55 N | 081 21 00 W |
| Shrub Branch Church | Church | 100 | Barnwell | 33 21 44 N | 081 20 07 W |
| Shrub Branch School (historical) | School | 101 | Barnwell | 33 21 46 N | 081 20 09 W |
| Siloam Church | Church | 78 | Barnwell | 33 10 08 N | 081 23 02 W |
| Silver Spring Church | Church | 98 | Barnwell | 33 25 49 N | 081 23 57 W |
| Silver Spring School (historical) | School | 95 | Barnwell | 33 25 51 N | 081 23 59 W |
| Singleton Cemetery | Cemetery | 82 | Barnwell | 33 11 47 N | 081 32 07 W |
| Sister Lake | Lake | 106 | Barnwell | 33 24 28 N | 081 28 25 W |
| Slaughter Field | Area | 64 | Barnwell | 33 24 08 N | 081 14 48 W |
| Snelling | Populated Place | 70 | Barnwell | 33 14 24 N | 081 27 21 W |
| Spring Branch Church (historical) | Church | 56 | Barnwell | 33 10 11 N | 081 35 41 W |
| Spring Branch School (historical) | School | 56 | Barnwell | 33 10 11 N | 081 35 41 W |
| Springfield Church | Church | 82 | Barnwell | 33 17 08 N | 081 23 50 W |
| Spur Branch | Stream | | Barnwell | 33 28 15 N | 081 17 19 W |
| Srp Number 16-403-D D-3073 Dam | Dam | 36 | Barnwell | 33 11 55 N | 081 44 35 W |
| Srp Number 18-488-10 D-3077 Dam | Dam | 42 | Barnwell | 33 11 49 N | 081 43 41 W |
| Steel Creek | Stream | | Barnwell | 33 05 48 N | 081 37 02 W |
| Steel Creek Church (historical) | Church | 76 | Barnwell | 33 11 02 N | 081 33 16 W |
| Steel Creek School (historical) | School | 40 | Barnwell | 33 08 40 N | 081 37 49 W |
| Stills Pond D-3057 Dam | Dam | 72 | Barnwell | 33 24 01 N | 081 16 11 W |
| Stringfellow Mill Pond | Reservoir | 72 | Barnwell | 33 23 07 N | 081 30 29 W |
| Stringfellows Mill (historical) | Locale | 72 | Barnwell | 33 23 01 N | 081 30 24 W |
| Substation Number 3 | Locale | 74 | Barnwell | 33 10 16 N | 081 38 56 W |
| Sunshine Church | Church | 75 | Barnwell | 33 24 52 N | 081 13 24 W |
| Sunshine School (historical) | School | 80 | Barnwell | 33 24 17 N | 081 13 43 W |
| Sunshine School (historical) | School | 64 | Barnwell | 33 24 31 N | 081 12 59 W |
| Sweet Branch Church | Church | 61 | Barnwell | 33 13 14 N | 081 13 11 W |
| Sweet Branch School (historical) | School | 68 | Barnwell | 33 14 23 N | 081 13 40 W |
| Sweetwater Grove Church | Church | 55 | Barnwell | 33 14 11 N | 081 24 33 W |
| Temple Church | Church | 89 | Barnwell | 33 21 02 N | 081 16 08 W |
| Thalmans Mill (historical) | Locale | 60 | Barnwell | 33 17 21 N | 081 31 07 W |
| Thomas Grove Church (historical) | Church | 59 | Barnwell | 33 11 34 N | 081 30 31 W |
| Thomas Grove Church (historical) | Church | 67 | Barnwell | 33 13 42 N | 081 32 05 W |
| Thomas Grove School (historical) | School | 58 | Barnwell | 33 11 35 N | 081 30 30 W |
| Tinkers Creek School (historical) | School | 102 | Barnwell | 33 22 35 N | 081 28 22 W |
| Toby Creek | Stream | | Barnwell | 33 11 49 N | 081 18 42 W |
| Tri-County Shopping Center | Locale | 59 | Barnwell | 33 14 35 N | 081 22 32 W |
| Turkey Creek | Stream | | Barnwell | 33 12 46 N | 081 21 37 W |
| Union Branch Church (historical) | Church | 91 | Barnwell | 33 16 04 N | 081 38 18 W |
| Union Branch School (historical) | School | 92 | Barnwell | 33 16 03 N | 081 38 18 W |
| Union Church | Church | 76 | Barnwell | 33 07 53 N | 081 20 24 W |
| Union Church | Church | 65 | Barnwell | 33 12 32 N | 081 26 52 W |
| W C Smiths Pond D-3070 Dam | Dam | 80 | Barnwell | 33 25 19 N | 081 22 29 W |