| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Iomara | city | Veracruz | Mexico | 18.62 | -95.09 | 232 | 7772 |
| Iorcasitas | city | Guerrero | Mexico | 16.89 | -98.75 | 1151 | 5090 |
| Ioscontla | city | Veracruz | Mexico | 19.11 | -97.01 | 5029 | 28125 |
| Iostio | city | Michoacan de Ocampo | Mexico | 19.19 | -100.84 | 2089 | 1163 |