
Marshfield
- County:
- Wood County
- County Seat:
- No
- Area (mi²):
- 13.801
- State:
- Wisconsin
Marshfield is a city located in Wood County, Wisconsin. Marshfield has a 2025 population of 18,600. Marshfield is currently declining at a rate of -0.36% annually and its population has decreased by -1.8% since the most recent census, which recorded a population of 18,940 in 2020.
The average household income in Marshfield is $81,951 with a poverty rate of 10.99%. The median age in Marshfield is 43.1 years: 40.9 years for males, and 45.2 years for females.