Clay Township, Polk County, Iowa From Wikipedia, the free encyclopedia Township in Polk County, Iowa, U.S. Clay Township is a township in Polk County, Iowa, United States.[1] Clay Township was established in 1878.[2] References ↑ U.S. Geological Survey Geographic Names Information System: Clay Township, Polk County, Iowa ↑ The History of Polk County, Iowa: Containing a History of the County, Its Cities, Towns, &c. Union Historical Company. 1880. pp. 657. vteMunicipalities and communities of Polk County, Iowa, United StatesCounty seat: Des MoinesCities Alleman Altoona Ankeny Bondurant Carlisle‡ Clive‡ Des Moines‡ Elkhart Granger‡ Grimes‡ Johnston Mitchellville‡ Norwalk‡ Pleasant Hill Polk City Runnells Sheldahl‡ Urbandale‡ West Des Moines‡ Windsor Heights Map of Iowa highlighting Polk CountyTownships Allen Beaver Bloomfield Camp Clay Crocker Delaware Des Moines Douglas Elkhart Four Mile Franklin Jefferson Lee Lincoln Madison Saylor Union Walnut Washington Webster CDP Saylorville Othercommunities Adelphi Avon Berwick Crocker Enterprise Farrar Herrold Ivy Oralabor Saylor Ghost town Dudley Zook Spur Footnotes‡This populated place also has portions in an adjacent county or counties Iowa portal United States portal 41°38′40″N 93°27′52″W / 41.6445°N 93.4645°W / 41.6445; -93.4645 This article about the geography of Polk County, Iowa is a stub. You can help Wikipedia by adding missing information.vte Related Articles~TimelinesTop QsFact Checks