Towns
| State | City/Town | Town Title |
|---|---|---|
| Ohio | Hanoverton | Hanoverton, OH |
| Ohio | Harbor View | Harbor View, OH |
| Ohio | Harlem Springs | Harlem Springs, OH |
| Ohio | Harpster | Harpster, OH |
| Ohio | Harrisburg | Harrisburg, OH |
| Ohio | Harrison | Harrison, OH |
| Ohio | Harrisville | Harrisville, OH |
| Ohio | Harrod | Harrod, OH |
| Ohio | Hartford | Hartford, OH |
| Ohio | Hartville | Hartville, OH |
| Ohio | Harveysburg | Harveysburg, OH |
| Ohio | Haskins | Haskins, OH |
| Ohio | Haverhill | Haverhill, OH |
| Ohio | Haviland | Haviland, OH |
| Ohio | Haydenville | Haydenville, OH |
| Ohio | Hayesville | Hayesville, OH |
| Ohio | Heath | Heath, OH |
| Ohio | Hebron | Hebron, OH |
| Ohio | Helena | Helena, OH |
| Ohio | Hicksville | Hicksville, OH |
| Ohio | Higginsport | Higginsport, OH |
| Ohio | Highland | Highland, OH |
| Ohio | Hilliard | Hilliard, OH |
| Ohio | Hillsboro | Hillsboro, OH |
| Ohio | Hinckley | Hinckley, OH |