About Bay City, WIBay City is located in Wisconsin. Bay City, Wisconsin has a population of 423. Bay City is less family-centric than the surrounding county with 29% households with children. The county percentage for households with children is 29%. The median household income in Bay City, Wisconsin is $52,054. The median household income for the surrounding county is $55,179 compared to the national median of $49,877. The median age of people living in Bay City is 43.2 years. Bay City WeatherThe average high temperature in July is 82.41 degrees, with an average low temperature in January of 2.55 degrees. The annual precipitation is 31.86. Bay City MapBay City real estate officesReal estate near Bay CityNearby CitiesNearby Cities Homes for Sale |