| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Iacobopolis | city | Virginia | United States | 37.21 | -76.77 | 0 | |
| Iacsoniapolis | city | Florida | United States | 30.33 | -81.66 | 22 | |
| Iacsonvilla | city | Florida | United States | 30.33 | -81.66 | 22 | |
| Iaeger | city | West Virginia | United States | 37.46 | -81.81 | 997 | |
| Iago | city | Texas | United States | 29.28 | -95.96 | 78 | |
| Iamonia | city | Florida | United States | 30.67 | -84.16 | 98 | |
| Ian Joy Acres | city | North Carolina | United States | 35.79 | -80.85 | 830 | |
| Iantha | city | Missouri | United States | 37.52 | -94.40 | 944 | |
| Iatan | city | Missouri | United States | 39.48 | -94.98 | 830 | |
| Iatan | city | Texas | United States | 32.34 | -101.13 | 2509 | |
| Iatt | city | Louisiana | United States | 31.69 | -92.71 | 147 | |
| Iauru | city | Federated States of Micronesia | United States | 7.24 | 144.45 | 0 |