West yarmouth is located in Barnstable county Massachusetts with a geographic area of 6.7 square miles. The total population in West yarmouth is 6,388 with 47.0% male and 53.0% female. Children under age 5 represent 5.1% of the population, under age 18 equal 18.2% of the population and over age 65 is 29.4% of the population. The median household income is $57,852, per capita income is $36,700. There are a total of 2,859 housing units with 77.9% owner occupied. Education includes 16.8% of residents that are high school graduates and 39.2% with a bachelor's degree or higher. The average temperature in West yarmouth in the summer is 70 degrees, and in the winter 30 degrees.