Grant Township is a township in Montgomery County, Iowa, USA.[1] History Grant Township was formed in 1868.[2] References [1]U.S. Geological Survey Geographic Names Information System: Grant Township, Montgomery County, Iowa [2]History of Montgomery County, Iowa: Containing a History of the County, Its Cities, Towns, Etc. Iowa Historical & Biographical Company. 1881. p. 480. 40.9411°N 95.2044°W / 40.9411; -95.2044 This article about the geography of Montgomery County, Iowa is a stub. You can help Wikipedia by expanding it.vteWikiwand - on Seamless Wikipedia browsing. On steroids.