Holden is located in Worcester county Massachusetts with a geographic area of square miles. The total population in Holden is 19,128 with 47.8% male and 52.2% female. Children under age 5 represent 5.1% of the population, under age 18 equal 24.7% of the population and over age 65 is 16.5% of the population. The median household income is $111,960, per capita income is $49,245. There are a total of 7,076 housing units with 87.2% owner occupied. Education includes 14.8% of residents that are high school graduates and 62.1% with a bachelor's degree or higher. The average temperature in Holden in the summer is 70 degrees, and in the winter 30 degrees.