Hudson is located in Middlesex county Massachusetts with a geographic area of 5.7 square miles. The total population in Hudson is 15,222 with 47.9% male and 52.1% female. Children under age 5 represent 5.2% of the population, under age 18 equal 18.7% of the population and over age 65 is 20.2% of the population. The median household income is $87,959, per capita income is $44,011. There are a total of 6,252 housing units with 68.4% owner occupied. Education includes 21.6% of residents that are high school graduates and 47.0% with a bachelor's degree or higher. The average temperature in Hudson in the summer is 70 degrees, and in the winter 30 degrees.