[4] Concord Township was founded in 1830.

[5] The Joseph and Sarah Puterbaugh Farm was listed on the National Register of Historic Places in 1995.

[6] According to the 2010 census, the township has a total area of 36.86 square miles (95.5 km2), of which 36.15 square miles (93.6 km2) (or 98.07%) is land and 0.71 square miles (1.8 km2) (or 1.93%) is water.

[4] (This list is based on USGS data and may include former settlements.)

The township contains five cemeteries: Burkett, Grace Lawn, Prairie Street, Rice, Rowe and Frame.