As of the 2020 census, its population was 619 (down from 640 at 2010[2]) and it contained 201 housing units.

In 1832, the first permanent white settlement in the area was made in what is now Gilliam Township.

[3] Independence Methodist Church was listed on the National Register of Historic Places in 1982.

[4] According to the 2010 census, the township has a total area of 38.23 square miles (99.0 km2), all land.

[2] The township contains two cemeteries: Mason and Robinson.