| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sibert | city | Alabama | United States | 30.74 | -88.06 | 9 | |
| Siberton | city | Alabama | United States | 33.99 | -86.11 | 830 | |
| Siddonsville | city | Alabama | United States | 32.42 | -87.61 | 249 | |
| Sidhart (historical) | city | Alabama | United States | 34.01 | -85.46 | 977 | |
| Sidney | city | Alabama | United States | 31.07 | -88.23 | 298 | |
| Sidney | city | Alabama | United States | 34.28 | -86.37 | 830 | |
| Sigma | city | Alabama | United States | 31.28 | -85.20 | 196 | |
| Signal Point Subdivision | city | Alabama | United States | 34.37 | -86.25 | 1003 | |
| Sigsbee | city | Alabama | United States | 34.34 | -85.71 | 1197 | |
| Sikes | city | Alabama | United States | 32.89 | -85.56 | 830 | |
| Sikesville | city | Alabama | United States | 33.13 | -85.67 | 862 | |
| Silas | city | Alabama | United States | 31.77 | -88.33 | 246 | |
| Siloam | city | Alabama | United States | 32.42 | -88.27 | 351 | |
| Siluria | city | Alabama | United States | 33.23 | -86.82 | 830 | |
| Silver Cross | city | Alabama | United States | 31.68 | -88.17 | 111 | |
| Silver Meadows | city | Alabama | United States | 31.21 | -85.44 | 272 | |
| Silver Run | city | Alabama | United States | 33.57 | -85.91 | 830 | |
| Silverhill | city | Alabama | United States | 30.55 | -87.75 | 141 | |
| Silverhill Mobile Home Park | city | Alabama | United States | 30.54 | -87.76 | 147 | |
| Simcoe | city | Alabama | United States | 34.22 | -86.73 | 898 | |
| Simmons Crossroads | city | Alabama | United States | 32.67 | -85.72 | 830 | |
| Simmsville | city | Alabama | United States | 33.32 | -86.71 | 830 | |
| Simpson | city | Alabama | United States | 34.58 | -87.00 | 830 | |
| Simpson | city | Alabama | United States | 33.07 | -85.72 | 830 | |
| Simpson Subdivision | city | Alabama | United States | 33.24 | -87.63 | 164 | |
| Sims Chapel | city | Alabama | United States | 31.22 | -88.15 | 49 | |
| Simsville | city | Alabama | United States | 32.10 | -85.87 | 357 | |
| Singing Brook | city | Alabama | United States | 31.30 | -85.85 | 354 | |
| Sipsey | city | Alabama | United States | 33.82 | -87.09 | 400 | |
| Sisco Mobile Home Park | city | Alabama | United States | 30.81 | -88.07 | 26 | |
| Six Mile | city | Alabama | United States | 34.42 | -86.76 | 830 | |
| Six Points | city | Alabama | United States | 34.82 | -87.68 | 830 | |
| Six Way | city | Alabama | United States | 34.52 | -86.88 | 830 | |
| Sixmile | city | Alabama | United States | 33.01 | -87.01 | 357 |