Westerly is located in Washington county Rhode island with a geographic area of 15.8 square miles. The total population in Westerly is 17,842 with 48.9% male and 51.1% female. Children under age 5 represent 3.9% of the population, under age 18 equal 14.2% of the population and over age 65 is 22.6% of the population. The median household income is $75,200, per capita income is $42,479. There are a total of 8,316 housing units with 66.9% owner occupied. Education includes 28.8% of residents that are high school graduates and 39.9% with a bachelor's degree or higher. The average temperature in Westerly in the summer is 69 degrees, and in the winter 33 degrees.
