
Greenbrier township
- County:
- Greene County
- County Seat:
- No
- Area (mi²):
- 36.106
- State:
- Iowa
Greenbrier township is located in Greene County, Iowa. Greenbrier township has a 2025 population of 247. Greenbrier 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 Greenbrier township is $51,687 with a poverty rate of 54.66%. The median age in Greenbrier township is 41.8 years: 41.8 years for males, and 39 years for females.