
Jefferson township
- County:
- Greene County
- County Seat:
- No
- Area (mi²):
- 36.367
- State:
- Iowa
Jefferson township is located in Greene County, Iowa. Jefferson township has a 2025 population of 6,184. Jefferson township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The average household income in Jefferson township is $65,638 with a poverty rate of 16.87%. The median age in Jefferson township is 44.9 years: 43.1 years for males, and 47.5 years for females.