Bay city is located in Pierce county Wisconsin with a geographic area of 0.6 square miles. The total population in Bay city is 444 with 55.6% male and 44.4% female. Children under age 5 represent 6.5% of the population, under age 18 equal 15.8% of the population and over age 65 is 18.5% of the population. The median household income is $46,500, per capita income is $32,521. There are a total of 194 housing units with 77.3% owner occupied. Education includes 50.0% of residents that are high school graduates and 4.6% with a bachelor's degree or higher. The average temperature in Bay city in the summer is 66 degrees, and in the winter 17 degrees.