Hardin, Iowa From Wikipedia, the free encyclopedia Unincorporated community in Iowa, United StatesCountryUnited StatesElevation1,040 ft (320 m)Time zoneUTC-6 (Central (CST))Area code563Hardin, IowaUnincorporated communityHardin, IowaShow map of IowaHardin, IowaShow map of the United StatesCountryUnited StatesStateIowaCountyClaytonElevation1,040 ft (320 m)Time zoneUTC-6 (Central (CST)) • Summer (DST)UTC-5 (CDT)Area code563GNIS feature ID457246 Hardin is an unincorporated community in Clayton County, Iowa, United States. Hardin was surveyed in 1854.[1] ↑ Price, Realto E. (1916). History of Clayton County, Iowa: From the Earliest Historical Times Down to the Present. Robert O. Law Company. pp. 321. vteMunicipalities and communities of Clayton County, Iowa, United StatesCounty seat: ElkaderCities Clayton Edgewood‡ Elkader Elkport Farmersburg Garber Garnavillo Guttenberg Luana Marquette McGregor Monona North Buena Vista Osterdock Postville‡ St. Olaf Strawberry Point Volga Map of Iowa highlighting Clayton CountyTownships Boardman Buena Vista Cass Clayton Cox Creek Elk Farmersburg Garnavillo Giard Grand Meadow Highland Jefferson Lodomillo Mallory Marion Mendon Millville Monona Read Sperry Volga Wagner Unincorporatedcommunities Beulah Ceres Clayton Center Communia Eckards Froelich Giard Gunder Hardin Highland Littleport McGregor Heights Mederville Millville Motor Osborne Saint Sebald Thomasville Turkey River Updegraff Watson Wood Footnotes‡This populated place also has portions in an adjacent county or counties Iowa portal United States portal This article about the geography of Clayton County, Iowa is a stub. You can help Wikipedia by adding missing information.vte Related Articles