| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sub Rosa (historical) | city | Arkansas | United States | 35.39 | -93.95 | 830 | |
| Subiaco | city | Arkansas | United States | 35.29 | -93.63 | 830 | |
| Success | city | Arkansas | United States | 36.45 | -90.72 | 288 | |
| Sugar Grove | city | Arkansas | United States | 35.08 | -93.80 | 830 | |
| Sulphur City | city | Arkansas | United States | 35.97 | -94.05 | 1669 | |
| Sulphur Rock | city | Arkansas | United States | 35.75 | -91.50 | 298 | |
| Sulphur Spring (historical) | city | Arkansas | United States | 36.11 | -93.07 | 1932 | |
| Sulphur Springs | city | Arkansas | United States | 35.48 | -93.56 | 830 | |
| Sulphur Springs | city | Arkansas | United States | 35.19 | -93.33 | 403 | |
| Sulphur Springs | city | Arkansas | United States | 34.50 | -93.88 | 987 | |
| Sulphur Springs | city | Arkansas | United States | 34.18 | -92.12 | 285 | |
| Sulphur Springs | city | Arkansas | United States | 35.49 | -92.30 | 830 | |
| Sulphur Springs | city | Arkansas | United States | 33.07 | -92.03 | 75 | |
| Sulphur Springs | city | Arkansas | United States | 36.48 | -94.46 | 948 | |
| Summers | city | Arkansas | United States | 35.98 | -94.49 | 1197 | |
| Summerville | city | Arkansas | United States | 33.52 | -92.36 | 206 | |
| Summit | city | Arkansas | United States | 36.25 | -92.69 | 830 | |
| Summit (historical) | city | Arkansas | United States | 36.46 | -94.19 | 1669 | |
| Summit (historical) | city | Arkansas | United States | 36.07 | -94.09 | 1669 | |
| Summit Addition | city | Arkansas | United States | 34.99 | -92.04 | 367 | |
| Sumpter | city | Arkansas | United States | 33.49 | -92.05 | 249 | |
| Sun Valley Addition | city | Arkansas | United States | 35.78 | -91.66 | 298 | |
| Sunland Estates | city | Arkansas | United States | 34.98 | -92.04 | 295 | |
| Sunny Gap (historical) | city | Arkansas | United States | 35.10 | -92.34 | 298 | |
| Sunny Slope | city | Arkansas | United States | 35.63 | -92.14 | 1062 | |
| Sunnydale | city | Arkansas | United States | 35.45 | -91.70 | 374 | |
| Sunnyside | city | Arkansas | United States | 33.29 | -91.18 | 104 | |
| Sunnyside | city | Arkansas | United States | 35.37 | -92.63 | 830 | |
| Sunrise (historical) | city | Arkansas | United States | 35.16 | -92.00 | 298 | |
| Sunset | city | Arkansas | United States | 35.22 | -90.21 | 219 | |
| Sunset | city | Arkansas | United States | 35.81 | -94.01 | 2509 | |
| Sunshine | city | Arkansas | United States | 33.19 | -91.53 | 114 | |
| Sunshine | city | Arkansas | United States | 34.47 | -93.24 | 830 | |
| Sunshine (historical) | city | Arkansas | United States | 34.03 | -94.01 | 830 | |
| Super (historical) | city | Arkansas | United States | 34.57 | -91.57 | 213 | |
| Supply | city | Arkansas | United States | 36.46 | -90.84 | 830 | |
| Sutherland Crossroads | city | Arkansas | United States | 35.53 | -93.77 | 830 | |
| Suttle | city | Arkansas | United States | 35.98 | -94.40 | 1669 | |
| Sutton | city | Arkansas | United States | 33.64 | -93.40 | 387 |