| Hypoluxo , FL (Town) |
| Hypoluxo / Haverhill Community Development District, FL (CDD) |
| Hyrum, UT (City) |
| Hysham, MT (Town) |
| Hytop, AL (Town) |
| Iaeger, WV (Town) |
| Iatan, MO (Village) |
| Iberia, MO (City) |
| Iberia Parish, LA (County) |
| Iberville Parish, LA (County) |
| Ibsen, ND (Township) |
| Ida, LA (Village) |
| Ida, MN (Township) |
| Ida County, IA (County) |
| Ida Grove, IA (City) |
