
Cass township
- County:
- Sullivan County
- County Seat:
- No
- Area (mi²):
- 37.822
- State:
- Indiana
Cass township is located in Sullivan County, Indiana. Cass township has a 2025 population of 1,881. Cass township is currently growing at a rate of 0.86% annually and its population has increased by 1.73% since the most recent census, which recorded a population of 1,849 in 2020.
The average household income in Cass township is $92,421 with a poverty rate of 9.24%. The median age in Cass township is 46.7 years: 47.3 years for males, and 46 years for females.