| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Suburban North | city | Louisiana | United States | 32.62 | -92.01 | 91 | |
| Sugar Creek | city | Louisiana | United States | 32.67 | -92.89 | 249 | |
| Sugarloaf Community Mobile Home Park | city | Louisiana | United States | 30.17 | -93.17 | 16 | |
| Sugartown | city | Louisiana | United States | 30.84 | -93.01 | 157 | |
| Sugrue | city | Louisiana | United States | 30.96 | -93.04 | 203 | |
| Sulphur | city | Louisiana | United States | 30.24 | -93.38 | 13 | |
| Sumerall | city | Louisiana | United States | 30.01 | -91.85 | 13 | |
| Summer Grove | city | Louisiana | United States | 32.40 | -93.81 | 200 | |
| Summerfield | city | Louisiana | United States | 31.58 | -92.72 | 144 | |
| Summerfield | city | Louisiana | United States | 30.32 | -90.84 | 3 | |
| Summerfield | city | Louisiana | United States | 32.91 | -92.83 | 206 | |
| Summerville | city | Louisiana | United States | 31.76 | -92.16 | 160 | |
| Summerwood Mobile Home Community | city | Louisiana | United States | 30.15 | -92.05 | 26 | |
| Summit | city | Louisiana | United States | 32.40 | -92.18 | 72 | |
| Sumpter (historical) | city | Louisiana | United States | 32.58 | -92.58 | 305 | |
| Sun | city | Louisiana | United States | 30.65 | -89.89 | 68 | |
| Suna | city | Louisiana | United States | 30.81 | -91.82 | 26 | |
| Sunbeam (historical) | city | Louisiana | United States | 30.76 | -90.92 | 180 | |
| Sunny Hill | city | Louisiana | United States | 30.92 | -90.33 | 236 | |
| Sunnybrook | city | Louisiana | United States | 30.49 | -91.09 | 45 | |
| Sunnybrook Farms | city | Louisiana | United States | 32.44 | -92.21 | 104 | |
| Sunrise | city | Louisiana | United States | 29.37 | -89.56 | 19 | |
| Sunrise | city | Louisiana | United States | 30.48 | -91.20 | 3 | |
| Sunrise Landing | city | Louisiana | United States | 32.29 | -91.53 | 72 | |
| Sunrise Mobile Home Park | city | Louisiana | United States | 30.09 | -92.03 | 22 | |
| Sunset | city | Louisiana | United States | 30.41 | -92.07 | 42 | |
| Sunshine | city | Louisiana | United States | 29.52 | -90.74 | 3 | |
| Sunshine | city | Louisiana | United States | 30.28 | -91.13 | 3 | |
| Sunshine Heights | city | Louisiana | United States | 32.53 | -92.18 | 98 | |
| Superior | city | Louisiana | United States | 32.82 | -93.98 | 226 | |
| Superior Mobile Home Park | city | Louisiana | United States | 30.56 | -90.50 | 52 | |
| Supreme | city | Louisiana | United States | 29.86 | -90.98 | 13 | |
| Sutton Junction (historical) | city | Louisiana | United States | 30.91 | -93.50 | 108 |