Norwalk is located in Huron county Ohio with a geographic area of 8.9 square miles. The total population in Norwalk is 16,860 with 48.6% male and 51.4% female. Children under age 5 represent 7.4% of the population, under age 18 equal 23.8% of the population and over age 65 is 19.5% of the population. The median household income is $48,851, per capita income is $25,257. There are a total of 7,206 housing units with 59.1% owner occupied. Education includes 42.4% of residents that are high school graduates and 15.9% with a bachelor's degree or higher. The average temperature in Norwalk in the summer is 70 degrees, and in the winter 32 degrees.