Plainville is located in Norfolk county Massachusetts with a geographic area of square miles. The total population in Plainville is 9,227 with 48.3% male and 51.7% female. Children under age 5 represent 3.5% of the population, under age 18 equal 19.2% of the population and over age 65 is 19.2% of the population. The median household income is $93,388, per capita income is $44,369. There are a total of 3,727 housing units with 70.2% owner occupied. Education includes 20.5% of residents that are high school graduates and 47.8% with a bachelor's degree or higher. The average temperature in Plainville in the summer is 70 degrees, and in the winter 30 degrees.
