Madison Township, Buchanan County, IowaMadison Township is one of sixteen townships in Buchanan County, Iowa, United States. As of the 2000 census, its population was 768.GeographyMadison Township covers an area of and contains one incorporated settlement, Lamont. According to the USGS, it contains two cemeteries: Campton and Madison.HistoryMadison Township was organized in 1857.