Marshfield is located in Washington county Vermont with a geographic area of 0.3 square miles. The total population in Marshfield is 367 with 54.0% male and 46.0% female. Children under age 5 represent 5.4% of the population, under age 18 equal 23.4% of the population and over age 65 is 15.0% of the population. The median household income is $54,583, per capita income is $21,401. There are a total of 107 housing units with 78.5% owner occupied. Education includes 21.5% of residents that are high school graduates and 49.5% with a bachelor's degree or higher. The average temperature in Marshfield in the summer is 65 degrees, and in the winter 19 degrees.