Logan Township is a township in Marshall County, Iowa, USA.[1] History Logan Township was created in 1869.[2] References [1]U.S. Geological Survey Geographic Names Information System: Logan Township, Marshall County, Iowa [2]The History of Marshall County, Iowa: Containing a History of the County, Its Cities, Towns, &c. Western Historical Co. 1878. pp. 341. 41.906°N 93.058°W / 41.906; -93.058 This article about the geography of Marshall County, Iowa is a stub. You can help Wikipedia by expanding it.vteWikiwand - on Seamless Wikipedia browsing. On steroids.