Columbus City Township is a township in Louisa County, Iowa.[1] It was organized in 1841.[2] References [1]U.S. Geological Survey Geographic Names Information System: Columbus City Township, Louisa County, Iowa [2]Springer, Arthur (1912). History of Louisa County, Iowa, from Its Earliest Settlement to 1912, Volume 1. S. J. Clarke Publishing Company. p. 88. 41.2556°N 91.3940°W / 41.2556; -91.3940 This article about the geography of Louisa County, Iowa is a stub. You can help Wikipedia by expanding it.vteWikiwand - on Seamless Wikipedia browsing. On steroids.