Norfolk county is located in Massachusetts with a geographic area of 443.9 square miles. The total population in Norfolk county is 703,740 with 48.1% male and 51.9% female. Children under age 5 represent 5.3% of the population, under age 18 equal 20.9% of the population and over age 65 is 16.8% of the population. The median household income is $105,320, per capita income is $55,860. There are a total of 267,967 housing units with 68.8% owner occupied. Education includes 16.5% of residents that are high school graduates and 57.4% with a bachelor's degree or higher. The average temperature in Norfolk county in the summer is 70 degrees, and in the winter 30 degrees.