| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sugar Creek | city | Indiana | United States | 39.64 | -85.91 | 830 | |
| Sugar Grove | city | Indiana | United States | 38.12 | -85.91 | 403 | |
| Sugar Hills | city | Indiana | United States | 39.86 | -85.82 | 889 | |
| Sullivan | city | Indiana | United States | 39.10 | -87.41 | 830 | |
| Sulphur | city | Indiana | United States | 38.23 | -86.47 | 830 | |
| Sulphur Spring | city | Indiana | United States | 39.77 | -85.52 | 971 | |
| Sulphur Springs | city | Indiana | United States | 38.21 | -86.47 | 830 | |
| Sulphur Springs | city | Indiana | United States | 40.00 | -85.44 | 1062 | |
| Suman | city | Indiana | United States | 41.54 | -87.00 | 830 | |
| Sumava Resorts | city | Indiana | United States | 41.17 | -87.44 | 830 | |
| Summit | city | Indiana | United States | 40.42 | -86.93 | 830 | |
| Summit | city | Indiana | United States | 41.64 | -86.80 | 895 | |
| Summit | city | Indiana | United States | 39.69 | -86.54 | 892 | |
| Summit | city | Indiana | United States | 41.51 | -85.03 | 997 | |
| Summit | city | Indiana | United States | 39.03 | -87.20 | 830 | |
| Summit Chapel | city | Indiana | United States | 41.25 | -86.08 | 830 | |
| Summit Grove | city | Indiana | United States | 39.72 | -87.39 | 830 | |
| Summitville | city | Indiana | United States | 40.34 | -85.64 | 846 | |
| Sun Down | city | Indiana | United States | 39.73 | -85.99 | 830 | |
| Sunblest | city | Indiana | United States | 39.97 | -86.01 | 830 | |
| Sunblest Farms | city | Indiana | United States | 39.97 | -86.03 | 830 | |
| Sundown Manor | city | Indiana | United States | 39.58 | -86.38 | 830 | |
| Sunman | city | Indiana | United States | 39.24 | -85.09 | 997 | |
| Sunny Slopes | city | Indiana | United States | 39.13 | -86.53 | 830 | |
| Sunnybrook Acres | city | Indiana | United States | 41.16 | -85.07 | 830 | |
| Sunnymeadow | city | Indiana | United States | 41.13 | -85.10 | 830 | |
| Sunnymede | city | Indiana | United States | 40.81 | -85.84 | 830 | |
| Sunnymede Woods | city | Indiana | United States | 41.07 | -85.07 | 830 | |
| Sunnyview | city | Indiana | United States | 39.75 | -86.08 | 830 | |
| Sunrise Beach | city | Indiana | United States | 41.40 | -85.69 | 866 | |
| Sunset Parkway | city | Indiana | United States | 38.96 | -85.91 | 830 | |
| Sunset Village | city | Indiana | United States | 38.46 | -85.53 | 830 | |
| Sunshine Gardens | city | Indiana | United States | 39.69 | -86.21 | 830 | |
| Sunshine Seven Mobile Home Park | city | Indiana | United States | 41.57 | -87.41 | 830 | |
| Sunview | city | Indiana | United States | 39.95 | -85.84 | 830 | |
| Superior | city | Indiana | United States | 39.63 | -87.16 | 830 | |
| Surprise | city | Indiana | United States | 38.97 | -86.06 | 830 | |
| Surrey | city | Indiana | United States | 41.00 | -87.20 | 830 | |
| Survant | city | Indiana | United States | 38.37 | -87.16 | 830 |