Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Social Hill Church | Church | 116 | Saline | 34 32 30 N | 092 33 37 W |
| Soda Cave Creek | Stream | | Madison | 35 48 04 N | 093 47 18 W |
| Soda Creek | Stream | | Faulkner | 35 15 16 N | 092 20 23 W |
| Soda Hollow | Valley | | Franklin | 35 41 22 N | 093 53 08 W |
| Soda Mountain | Summit | 168 | Faulkner | 35 15 15 N | 092 22 00 W |
| Soda Valley | Populated Place | 129 | Faulkner | 35 15 31 N | 092 21 38 W |
| Soda Valley | Valley | 108 | Faulkner | 35 15 37 N | 092 20 07 W |
| Soda Valley Church | Church | 131 | Faulkner | 35 15 30 N | 092 21 45 W |
| Sodie Davidson Park | Park | 222 | Scott | 34 52 49 N | 094 04 49 W |
| Solgohachia | Populated Place | 130 | Conway | 35 15 22 N | 092 40 35 W |
| Solgohachia Post Office | Post Office | 141 | Conway | 35 15 35 N | 092 40 31 W |
| Solid Rock Assembly of God Church | Church | 92 | Pulaski | 34 43 42 N | 092 16 00 W |
| Solid Rock Tabernacle | Church | 141 | Crawford | 35 29 14 N | 094 14 14 W |
| Sollars Reservoir | Reservoir | 53 | Arkansas | 34 12 11 N | 091 28 33 W |
| Sollars Reservoir | Reservoir | 53 | Arkansas | 34 15 06 N | 091 27 24 W |
| Sollars Reservoir Dam | Dam | 53 | Arkansas | 34 15 06 N | 091 27 24 W |
| Sollys Knob | Summit | 627 | Pope | 35 42 11 N | 093 06 31 W |
| Solo | Populated Place | 502 | Pope | 35 35 14 N | 092 57 49 W |
| Solo Cemetery | Cemetery | 517 | Pope | 35 35 09 N | 092 57 59 W |
| Solomon Allen Cemetery | Cemetery | 44 | Drew | 33 34 53 N | 091 30 50 W |
| Solomon Grove Church | Church | 184 | Faulkner | 35 18 34 N | 092 26 59 W |
| Solomon Grove School | School | 192 | Faulkner | 35 19 15 N | 092 26 04 W |
| Solomon's Temple Church | Church | 69 | Crittenden | 35 13 14 N | 090 18 04 W |
| Solomons Temple School (historical) | School | 69 | Crittenden | 35 13 14 N | 090 18 01 W |
| Sommer (historical) | Populated Place | 104 | Logan | 35 19 28 N | 093 26 17 W |
| Sonora | Populated Place | 396 | Washington | 36 09 55 N | 094 02 42 W |
| Sonora Baptist Church | Church | 396 | Washington | 36 09 57 N | 094 02 41 W |
| Sons Chapel | Church | 463 | Washington | 36 06 07 N | 094 04 58 W |
| Sook Spring | Spring | 96 | Stone | 35 44 06 N | 091 50 25 W |
| Sophia Meyer Elementary School | School | 125 | Crawford | 35 26 06 N | 094 20 59 W |
| Sore Eye Point | Cliff | 84 | Randolph | 36 18 34 N | 090 47 05 W |
| Sorghum Hollow | Valley | | Logan | 35 16 01 N | 093 30 22 W |
| Sorghum Patch Ford | Crossing | 83 | Sevier | 33 55 54 N | 094 25 53 W |
| Sorrells | Populated Place | 85 | Jefferson | 34 09 39 N | 092 03 58 W |
| Sorrells Creek | Stream | | Garland | 34 23 17 N | 093 06 42 W |
| Sorrels Cemetery | Cemetery | 202 | Scott | 35 04 50 N | 094 11 06 W |
| Soso Bayou | Gut | 34 | Chicot | 33 11 25 N | 091 08 35 W |
| Soudan | Populated Place | 61 | Lee | 34 49 34 N | 090 39 33 W |
| Soudan Cemetery | Cemetery | 56 | Lee | 34 49 44 N | 090 39 40 W |
| Soudan Landing | Locale | 51 | Lee | 34 50 32 N | 090 37 58 W |
| Soudan School (historical) | School | 59 | Lee | 34 49 30 N | 090 39 00 W |
| Soulesbury College (historical) | School | 98 | Independence | 35 46 25 N | 091 39 01 W |
| Souls Chapel | Church | 59 | Union | 33 08 40 N | 092 35 18 W |
| Souls Harbor Church | Church | 83 | Pulaski | 34 46 12 N | 092 17 28 W |
| South 71 Church of Christ | Church | 342 | Polk | 34 33 53 N | 094 15 44 W |
| South Alligator Bayou | Stream | | Lee | 34 50 18 N | 090 36 30 W |
| South Alum Creek | Stream | | Saline | 34 48 38 N | 093 00 29 W |
| South Arkansas Arboretum | Park | 67 | Union | 33 13 05 N | 092 41 06 W |
| South Arkansas Arts Center | Building | 63 | Union | 33 13 20 N | 092 39 45 W |
| South Arkansas Development Center for Children and Family | School | 65 | Union | 33 13 07 N | 092 39 09 W |
| South Bayou | Stream | | Ouachita | 33 33 42 N | 092 53 28 W |
| South Bend | Populated Place | 77 | Lonoke | 34 50 30 N | 092 03 16 W |
| South Bend (historical) | Populated Place | 52 | Lincoln | 34 02 15 N | 091 27 49 W |
| South Bend Church | Church | 79 | Lonoke | 34 50 54 N | 092 02 24 W |
| South Bend Church (historical) | Church | 78 | Lonoke | 34 49 52 N | 092 02 23 W |
| South Bend Church Number 2 (historical) | Church | 51 | Lincoln | 34 02 39 N | 091 27 55 W |
| South Bend Landing | Locale | 49 | Lincoln | 34 02 10 N | 091 26 18 W |
| South Bend School (historical) | School | 79 | Lonoke | 34 50 39 N | 092 02 59 W |
| South Big Creek | Stream | | Lawrence | 36 01 15 N | 091 19 15 W |
| South Bluff | Cliff | 194 | Yell | 35 08 47 N | 093 26 07 W |
| South Boat Ditch | Canal | 56 | Clark | 34 02 38 N | 093 12 54 W |
| South Branch LaGrue Bayou | Stream | | Prairie | 34 43 44 N | 091 37 54 W |
| South Bratton Creek | Stream | | Searcy | 35 59 56 N | 092 29 39 W |
| South Brushy Creek | Stream | | Fulton | 36 17 30 N | 092 08 21 W |
| South Bypass Interchange | Crossing | 89 | Pulaski | 34 40 44 N | 092 21 18 W |
| South Caney Creek | Stream | 98 | Little River | 33 51 20 N | 094 28 12 W |
| South Castleberry Creek | Stream | | Van Buren | 35 43 24 N | 092 36 39 W |
| South Central | Locale | 99 | Clark | 34 04 12 N | 093 08 04 W |
| South Creek | Stream | | Columbia | 33 16 09 N | 092 56 52 W |
| South Crossett | Populated Place | 40 | Ashley | 33 06 20 N | 091 57 13 W |
| South Crossett Missionary Baptist Church | Church | 42 | Ashley | 33 06 28 N | 091 57 16 W |
| South Cypress Creek | Stream | | Columbia | 33 02 31 N | 093 11 13 W |
| South East School (historical) | School | 84 | Clay | 36 20 46 N | 090 07 00 W |
| South El Dorado Oil Field | Oilfield | 67 | Union | 33 10 00 N | 092 41 06 W |
| South Elementary School | School | 103 | Craighead | 35 49 25 N | 090 43 07 W |
| South Elementary School | School | 90 | Greene | 36 00 27 N | 090 31 56 W |
| South Fork Bee Bayou | Stream | | Phillips | 34 10 01 N | 091 01 34 W |
| South Fork Big Creek | Stream | | Clay | 36 22 18 N | 090 18 59 W |
| South Fork Bridge | Bridge | 143 | Garland | 34 36 12 N | 092 55 22 W |
| South Fork Brown Creek | Stream | | Perry | 34 53 25 N | 092 47 01 W |
| South Fork Brush Creek | Stream | | Carroll | 36 31 08 N | 093 19 31 W |
| South Fork Caddo River | Stream | | Montgomery | 34 21 44 N | 093 36 05 W |
| South Fork Church | Church | 79 | Clark | 33 59 33 N | 093 11 43 W |
| South Fork Clear Creek | Stream | | Drew | 33 30 38 N | 091 50 15 W |
| South Fork Cypress Bayou | Stream | | Faulkner | 35 04 01 N | 092 11 23 W |
| South Fork Dry Creek | Stream | | Carroll | 36 19 23 N | 093 22 13 W |
| South Fork Frank Lapere Creek | Stream | | Union | 33 01 27 N | 092 16 46 W |
| South Fork Janes Creek | Stream | | Randolph | 36 29 55 N | 091 22 07 W |
| South Fork Little Hurricane Creek | Stream | | Prairie | 34 47 58 N | 091 32 51 W |
| South Fork Little Red River | Stream | | Van Buren | 35 33 56 N | 092 22 31 W |
| South Fork Martins Creek | Stream | | Sharp | 36 23 14 N | 091 19 19 W |
| South Fork Mountains | Ridge | 385 | Pike | 34 20 34 N | 093 42 02 W |
| South Fork Ouachita River | Stream | | Montgomery | 34 33 52 N | 093 33 09 W |
| South Fork Ozan Creek | Stream | | Hempstead | 33 52 27 N | 093 36 41 W |
| South Fork Panther Creek | Stream | | Drew | 33 25 03 N | 091 51 42 W |
| South Fork Pee Dee Creek | Stream | | Logan | 35 17 37 N | 093 31 53 W |
| South Fork Recreation Area | Locale | 167 | Van Buren | 35 33 20 N | 092 19 32 W |
| South Fork Saline River | Stream | | Polk | 34 21 38 N | 094 01 26 W |
| South Fork Saline River | Stream | | Saline | 34 33 16 N | 092 43 06 W |
| South Fork Spring River | Stream | | Sharp | 36 19 06 N | 091 29 42 W |
| South Fork Terre Noire Creek | Stream | | Clark | 34 00 25 N | 093 09 58 W |
| South Fork White Oak Creek | Stream | | Franklin | 35 32 38 N | 093 51 55 W |
| South Fork Woodall Creek | Stream | | Pike | 34 12 37 N | 093 32 32 W |
| South Fort Smith | Populated Place | 153 | Sebastian | 35 19 53 N | 094 24 04 W |
| South Fort Smith Branch Post Office | Post Office | 154 | Sebastian | 35 19 55 N | 094 23 59 W |
| South Fort Smith Freewill Baptist Church | Church | 150 | Sebastian | 35 20 07 N | 094 24 19 W |
| South Fort Smith Municipal Airport | Airport | 142 | Sebastian | 35 20 05 N | 094 22 41 W |
| South Fouche Site Seven Reservoir | Reservoir | 115 | Perry | 35 00 36 N | 092 49 19 W |
| South Fouche Site Six Reservoir | Reservoir | 118 | Perry | 34 55 42 N | 092 57 49 W |
| South Fourche Campground | Locale | 145 | Perry | 34 52 12 N | 093 06 29 W |