
Jefferson township
- County:
- Sullivan County
- County Seat:
- No
- Area (mi²):
- 42.394
- State:
- Indiana
Jefferson township is located in Sullivan County, Indiana. Jefferson township has a 2025 population of 369. Jefferson township is currently growing at a rate of 0.82% annually and its population has increased by 1.65% since the most recent census, which recorded a population of 363 in 2020.
The average household income in Jefferson township is $52,360 with a poverty rate of 40.78%. The median age in Jefferson township is 37.3 years: 37.2 years for males, and 38 years for females.