
Jefferson township
- County:
- Jay County
- County Seat:
- No
- Area (mi²):
- 35.13
- State:
- Indiana
Jefferson township is located in Jay County, Indiana. Jefferson township has a 2025 population of 669. Jefferson township is currently declining at a rate of -0.59% annually and its population has decreased by -3.6% since the most recent census, which recorded a population of 694 in 2020.
The average household income in Jefferson township is $83,677 with a poverty rate of 5.75%. The median age in Jefferson township is 44.1 years: 33 years for males, and 48.3 years for females.