Pokagon Township is a civil township of Cass County in the U.S. state of Michigan. The population was 2,029 at the 2010 census. The township includes the unincorporated communities of Pokagon and Sumnerville, adjacent to each other on M-51. Pokagon Township is the location of the first public performance of the hymn "The Old Rugged Cross", the birthplace of journalist Webb Miller, and the location of the government offices of the Pokagon Band of Potawatomi Indians.