Cities
19,472 incorporated places. Staff can add a place that is missing from the gazetteer.
- Groveport, OH
- Grover Hill, OH
- Hamden, OH
- Hamersville, OH
- Hamilton, OH
- Hamler, OH
- Hanging Rock, OH
- Hanover, OH
- Hanoverton, OH
- Harbor View, OH
- Harpster, OH
- Harrisburg, OH
- Harrison, OH
- Harrisville, OH
- Harrod, OH
- Hartford (Croton), OH
- Hartville, OH
- Harveysburg, OH
- Haskins, OH
- Haviland, OH
- Hayesville, OH
- Heath, OH
- Hebron, OH
- Helena, OH
- Hemlock, OH
- Hicksville, OH
- Higginsport, OH
- Highland, OH
- Highland Heights, OH
- Highland Hills, OH
- Hilliard, OH
- Hills and Dales, OH
- Hillsboro, OH
- Hiram, OH
- Holgate, OH
- Holiday City, OH
- Holland, OH
- Hollansburg, OH
- Holloway, OH
- Holmesville, OH
- Hopedale, OH
- Hoytville, OH
- Hubbard, OH
- Huber Heights, OH
- Hudson, OH
- Hunting Valley, OH
- Huntsville, OH
- Huron, OH
- Independence, OH
- Irondale, OH
- Ironton, OH
- Ithaca, OH
- Jackson, OH
- Jackson Center, OH
- Jacksonburg, OH
- Jacksonville, OH
- Jamestown, OH
- Jefferson, OH
- Jeffersonville, OH
- Jenera, OH