- Fairborn - Zip Codes in Fairborn
- Fairfield - Zip Codes in Fairfield
- Fairlawn - Zip Codes in Fairlawn
- Findlay - Zip Codes in Findlay
- Fort Recovery - Zip Codes in Fort Recovery
- Fostoria - Zip Codes in Fostoria
- Frankfort - Zip Codes in Frankfort
- Franklin - Zip Codes in Franklin
- Frazeysburg - Zip Codes in Frazeysburg
- Fredericksburg - Zip Codes in Fredericksburg
- Fredericktown - Zip Codes in Fredericktown
- Fremont - Zip Codes in Fremont
- Galena - Zip Codes in Galena
- Galion - Zip Codes in Galion
- Gallipolis - Zip Codes in Gallipolis
- Galloway - Zip Codes in Galloway
- Garrettsville - Zip Codes in Garrettsville
- Geneva - Zip Codes in Geneva
- Genoa - Zip Codes in Genoa
- Georgetown - Zip Codes in Georgetown
- Germantown - Zip Codes in Germantown
- Gibsonburg - Zip Codes in Gibsonburg
- Girard - Zip Codes in Girard
- Glouster - Zip Codes in Glouster
- Goshen - Zip Codes in Goshen
- Grafton - Zip Codes in Grafton
- Granville - Zip Codes in Granville
- Greenfield - Zip Codes in Greenfield
- Greenville - Zip Codes in Greenville
- Greenwich - Zip Codes in Greenwich
- Grove City - Zip Codes in Grove City
- Groveport - Zip Codes in Groveport
- Hamilton - Zip Codes in Hamilton
- Harrison - Zip Codes in Harrison
- Hartville - Zip Codes in Hartville
- Heath - Zip Codes in Heath
- Hebron - Zip Codes in Hebron
- Hicksville - Zip Codes in Hicksville
- Hilliard - Zip Codes in Hilliard
- Hillsboro - Zip Codes in Hillsboro
- Hinckley - Zip Codes in Hinckley
- Hiram - Zip Codes in Hiram
- Holland - Zip Codes in Holland
- Howard - Zip Codes in Howard
- Hubbard - Zip Codes in Hubbard
- Hudson - Zip Codes in Hudson
- Huron - Zip Codes in Huron