Marshfield is a town in Wood County, Wisconsin, United States.
As of the census of 2000, there were 811 people, 295 households, and 233 families residing in the town.
There were 307 housing units at an average density of 18.5 per square mile (7.1/km2).
18% of all households were made up of individuals, and 5.8% had someone living alone who was 65 years of age or older.
Out of the total people living in poverty, 3.4% were under the age of 18 and 6.9% were 65 or older.