Decatur County, Iowa - Chart of communities by population (2010 census)

† county seat

Reference 1: Population (2010 Census).

Reference 2: Lamoni, † Leon, Grand River, Van Wert, Garden Grove, Davis City, Decatur City, Weldon (partially in Clarke County), Pleasanton and Le Roy.

Source: http://en.wikipedia.org/wiki/Decatur_County,_Iowa