[3] As of the 2020 census, its population was 4,470 (up from 4,336 at 2010[4]) and it contained 2,641 housing units.

[5] Hamblen Township was named for Job Hamblen, a pioneer settler.

[7] According to the 2010 census, the township has a total area of 64.92 square miles (168.1 km2), of which 63.97 square miles (165.7 km2) (or 98.54%) is land and 0.95 square miles (2.5 km2) (or 1.46%) is water.

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

The township contains six cemeteries: Anderson, Calvin, Duncan, Mount Moriah, Taylor and Zion Church.