Cass Township is one of nine townships in Sullivan County, Indiana, USA. As of the 2020 census, its population was 1,856 and it contained 923 housing units.

Geography

According to the 2010 census, the township has a total area of 39.46 sqmi, of which 37.8 sqmi (or 95.79%) is land and 1.67 sqmi (or 4.23%) is water.

Cities, towns, villages

Unincorporated towns

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

Extinct towns

(These towns are listed as "historical" by the USGS.)

Adjacent townships

Cemeteries

The township contains these five cemeteries: Burris, Clayton Cemeteries (historical), Deckard, Dugger and Houck.

Major highways

Lakes

School districts

Political districts