| Ilwaco, WA (City) |
| Imbler, OR (City) |
| Imboden, AR (Town) |
| Imlay, SD (Township) |
| Imlay City, MI (City) |
| Imlay Township, MI (Township) |
| Imogene, IA (City) |
| Impact, TX (Town) |
| Impark, ND (Township) |
| Imperial, NE (City) |
| Imperial, CA (City) |
| Imperial Beach, CA (City) |
| Imperial County, CA (County) |
| Ina, IL (Village) |
| Independence, NY (Town) |
