| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Stacyville | city | Iowa | United States | 43.43611 | -92.78222 | 1210 | 657 |
| Stacyville Junction | city | Iowa | United States | 43.44583 | -92.9325 | 1187 | 725 |
| Stanhope | city | Iowa | United States | 42.28889 | -93.79583 | 1128 | 728 |
| Stanley | city | Iowa | United States | 42.64278 | -91.8125 | 1102 | 898 |
| Stanton | city | Iowa | United States | 40.98167 | -95.10389 | 1148 | 767 |
| Stanton | city | Iowa | United States | 41.07306 | -95.09528 | 1249 | 399 |
| Stanwood | city | Iowa | United States | 41.89306 | -91.15056 | 908 | 950 |
| Stanzel | city | Iowa | United States | 41.31583 | -94.26083 | 1253 | 424 |
| State Center | city | Iowa | United States | 42.01667 | -93.16333 | 1066 | 850 |
| State Center Junction | city | Iowa | United States | 41.94222 | -93.04694 | 1049 | 868 |
| Steamboat Rock | city | Iowa | United States | 42.40944 | -93.06556 | 1030 | 3000 |
| Stein's Rockin R Mobile Home Park | city | Iowa | United States | 42.735 | -94.44389 | 1220 | 608 |
| Stennett | city | Iowa | United States | 41.08972 | -95.19417 | 1174 | 415 |
| Sterling | city | Iowa | United States | 42.07667 | -90.25278 | 826 | 1100 |
| Steuben | city | Iowa | United States | 40.72361 | -92.38833 | 862 | 737 |
| Stevens | city | Iowa | United States | 43.43167 | -94.00389 | 1197 | 409 |
| Stiles | city | Iowa | United States | 40.635 | -92.35111 | 859 | 689 |
| Stillwell | city | Iowa | United States | 41.52389 | -92.66833 | 761 | 659 |
| Stilson | city | Iowa | United States | 43.03833 | -93.885 | 1204 | 551 |
| Stimsons historical | city | Iowa | United States | 42.35417 | -94.6 | 1197 | 640 |
| Stockport | city | Iowa | United States | 40.8575 | -91.835 | 698 | 798 |
| Stockton | city | Iowa | United States | 41.59139 | -90.85861 | 705 | 1173 |
| Stone City | city | Iowa | United States | 42.11389 | -91.34917 | 800 | 2492 |
| Stonega | city | Iowa | United States | 42.47667 | -93.71444 | 1200 | 1304 |
| Storm Lake | city | Iowa | United States | 42.64111 | -95.20944 | 1397 | 7123 |
| Story City | city | Iowa | United States | 42.18722 | -93.59556 | 994 | 2579 |
| Stout | city | Iowa | United States | 42.52639 | -92.71167 | 1049 | 949 |
| Strahan | city | Iowa | United States | 40.94972 | -95.49889 | 1148 | 738 |
| Strand | city | Iowa | United States | 41.07222 | -94.90167 | 1105 | 305 |
| Stratford | city | Iowa | United States | 42.27139 | -93.92694 | 1108 | 848 |
| Strawberry Point | city | Iowa | United States | 42.68361 | -91.53389 | 1210 | 960 |
| Streepy | city | Iowa | United States | 40.69611 | -92.91583 | 1003 | 4579 |
| Stringtown | city | Iowa | United States | 40.97889 | -94.5575 | 1305 | 280 |
| Struble | city | Iowa | United States | 42.89528 | -96.195 | 1249 | 1104 |
| Stuart | city | Iowa | United States | 41.50333 | -94.31833 | 1200 | 1091 |
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