Munster is located in Lake county Indiana with a geographic area of 7.5 square miles. The total population in Munster is 22,604 with 49.6% male and 50.4% female. Children under age 5 represent 5.1% of the population, under age 18 equal 19.1% of the population and over age 65 is 17.9% of the population. The median household income is $88,010, per capita income is $44,926. There are a total of 8,535 housing units with 84.6% owner occupied. Education includes 24.9% of residents that are high school graduates and 50.0% with a bachelor's degree or higher. The average temperature in Munster in the summer is 73 degrees, and in the winter 29 degrees.