Bay City is a village on the Mississippi River in Pierce County, Wisconsin, United States.

[7] As of the census[3] of 2010, there were 500 people, 201 households, and 128 families living in the village.

There were 214 housing units at an average density of 362.7 per square mile (140.0/km2).

26.9% of all households were made up of individuals, and 6% had someone living alone who was 65 years of age or older.

There were 193 housing units at an average density of 375.3 per square mile (144.9/km2).

25.1% of all households were made up of individuals, and 10.2% had someone living alone who was 65 years of age or older.