Bath is located in Mason county Illinois with a geographic area of 0.4 square miles. The total population in Bath is 300 with 40.0% male and 60.0% female. Children under age 5 represent 4.3% of the population, under age 18 equal 14.0% of the population and over age 65 is 26.3% of the population. The median household income is $42,813, per capita income is $25,570. There are a total of 150 housing units with 72.0% owner occupied. Education includes 55.3% of residents that are high school graduates and 1.3% with a bachelor's degree or higher. The average temperature in Bath in the summer is 74 degrees, and in the winter 27 degrees.