Marshfield
- County:
- Webster County
- County Seat:
- Yes
- Area (mi²):
- 5.521
- State:
- Missouri
Marshfield is a city located in Webster County, Missouri. Marshfield has a 2026 population of 7,935. It is also the county seat of Webster County. Marshfield is currently growing at a rate of 1.19% annually and its population has increased by 5.97% since the most recent census, which recorded a population of 7,488 in 2020.