| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Iravol | city | Departamento de Ahuachapan | El Salvador | 13.7877778 | -90.0122222 | 587 | 21463 |
| Istagapan | city | Departamento de Ahuachapan | El Salvador | 13.7 | -89.85 | 452 | 36944 |
| Istagapán | city | Departamento de Ahuachapan | El Salvador | 13.7 | -89.85 | 452 | 36944 |
| Izcaquilio | city | Departamento de Ahuachapan | El Salvador | 13.9833333 | -89.75 | 2099 | 61107 |
| Izcaquilío | city | Departamento de Ahuachapan | El Salvador | 13.9833333 | -89.75 | 2099 | 61107 |