
Greenfield
- County:
- Milwaukee County
- County Seat:
- No
- Area (mi²):
- 11.532
- State:
- Wisconsin
Greenfield is a city located in Milwaukee County, Wisconsin. Greenfield has a 2025 population of 36,360. Greenfield is currently declining at a rate of -0.76% annually and its population has decreased by -3.68% since the most recent census, which recorded a population of 37,749 in 2020.
The average household income in Greenfield is $86,286 with a poverty rate of 8.05%. The median age in Greenfield is 43 years: 41.1 years for males, and 45.2 years for females.