Norfolk is located in Madison county Nebraska with a geographic area of 11.6 square miles. The total population in Norfolk is 24,410 with 48.9% male and 51.1% female. Children under age 5 represent 7.5% of the population, under age 18 equal 25.4% of the population and over age 65 is 15.1% of the population. The median household income is $49,280, per capita income is $29,154. There are a total of 10,240 housing units with 61.9% owner occupied. Education includes 31.3% of residents that are high school graduates and 23.8% with a bachelor's degree or higher. The average temperature in Norfolk in the summer is 73 degrees, and in the winter 26 degrees.