Jefferson
- County:
- Greene County
- County Seat:
- Yes
- Area (mi²):
- 35.919
- State:
- Iowa
Jefferson is located in Greene County, Iowa Iowa. Unfortunately, the data for this location is currently limited or unavailable.
The median age in Jefferson is 70.9 years: 73.8 years for males, and 70.1 years for females. For every 100 females there are 100.0 males.