Essex county is located in Massachusetts with a geographic area of 828.5 square miles. The total population in Essex county is 787,038 with 48.2% male and 51.8% female. Children under age 5 represent 5.6% of the population, under age 18 equal 21.3% of the population and over age 65 is 17.1% of the population. The median household income is $82,225, per capita income is $43,948. There are a total of 297,254 housing units with 63.8% owner occupied. Education includes 22.0% of residents that are high school graduates and 43.1% with a bachelor's degree or higher. The average temperature in Essex county in the summer is 70 degrees, and in the winter 30 degrees.