Towns
| State | City/Town | Town Title |
|---|---|---|
| Iowa | Haverhill | Haverhill, IA |
| Iowa | Hawarden | Hawarden, IA |
| Iowa | Hawkeye | Hawkeye, IA |
| Iowa | Hayesville | Hayesville, IA |
| Iowa | Hazleton | Hazleton, IA |
| Iowa | Hedrick | Hedrick, IA |
| Iowa | Henderson | Henderson, IA |
| Iowa | Hiawatha | Hiawatha, IA |
| Iowa | Hills | Hills, IA |
| Iowa | Hillsboro | Hillsboro, IA |
| Iowa | Hinton | Hinton, IA |
| Iowa | Holland | Holland, IA |
| Iowa | Holstein | Holstein, IA |
| Iowa | Holy Cross | Holy Cross, IA |
| Iowa | Homestead | Homestead, IA |
| Iowa | Honey Creek | Honey Creek, IA |
| Iowa | Hopkinton | Hopkinton, IA |
| Iowa | Hornick | Hornick, IA |
| Iowa | Hospers | Hospers, IA |
| Iowa | Houghton | Houghton, IA |
| Iowa | Hubbard | Hubbard, IA |
| Iowa | Hudson | Hudson, IA |
| Iowa | Hull | Hull, IA |
| Iowa | Humboldt | Humboldt, IA |
| Iowa | Humeston | Humeston, IA |