รหัสไปรษณีย์Ohio (OH)
เขต
88Adams County 9Allen County 13Ashland County 10Ashtabula County 17Athens County 19Auglaize County 11Belmont County 26Brown County 12Butler County 21Carroll County 7Champaign County 10Clark County 15Clermont County 16Clinton County 10Columbiana County 21Coshocton County 10Crawford County 9Cuyahoga County 62Darke County 15Defiance County 8Delaware County 10Erie County 9Fairfield County 14Fayette County 4Franklin County 63Fulton County 8Gallia County 9Geauga County 13Greene County 13Guernsey County 14Hamilton County 78Hancock County 13Hardin County 10Harrison County 11Henry County 12Highland County 7Hocking County 8Holmes County 12Huron County 11Jackson County 4Jefferson County 23Knox County 10Lake County 11Lawrence County 10Licking County 20Logan County 14Lorain County 16Lucas County 42Madison County 6Mahoning County 32Marion County 10Medina County 16Meigs County 11Mercer County 10Miami County 14Monroe County 12Montgomery County 51Morgan County 4Morrow County 9Muskingum County 18Noble County 6Ottawa County 16Paulding County 9Perry County 11Pickaway County 9Pike County 8Portage County 17Preble County 10Putnam County 14Richland County 14Ross County 11Sandusky County 8Scioto County 15Seneca County 14Shelby County 12Stark County 42Summit County 48Trumbull County 28Tuscarawas County 20Union County 9Van Wert County 9Vinton County 7Warren County 12Washington County 20Wayne County 16Williams County 10Wood County 30Wyandot County 8