Holyoke is located in Hampden county Massachusetts with a geographic area of 21.2 square miles. The total population in Holyoke is 40,161 with 49.4% male and 50.6% female. Children under age 5 represent 6.3% of the population, under age 18 equal 22.8% of the population and over age 65 is 15.1% of the population. The median household income is $42,537, per capita income is $24,626. There are a total of 15,464 housing units with 40.0% owner occupied. Education includes 29.1% of residents that are high school graduates and 21.9% with a bachelor's degree or higher. The average temperature in Holyoke in the summer is 70 degrees, and in the winter 30 degrees.
