Lewis township is located in Brown county Ohio with a geographic area of square miles. The total population in Lewis township is 2,626 with 57.3% male and 42.7% female. Children under age 5 represent 1.6% of the population, under age 18 equal 20.1% of the population and over age 65 is 16.9% of the population. The median household income is $52,575, per capita income is $24,936. There are a total of 973 housing units with 80.0% owner occupied. Education includes 55.3% of residents that are high school graduates and 3.6% with a bachelor's degree or higher. The average temperature in Lewis township in the summer is 73 degrees, and in the winter 32 degrees.
