Plymouth is located in Marshall county Indiana with a geographic area of 7.6 square miles. The total population in Plymouth is 10,029 with 51.1% male and 48.9% female. Children under age 5 represent 5.7% of the population, under age 18 equal 25.7% of the population and over age 65 is 14.7% of the population. The median household income is $40,444, per capita income is $21,592. There are a total of 3,982 housing units with 53.9% owner occupied. Education includes 36.0% of residents that are high school graduates and 21.2% with a bachelor's degree or higher. The average temperature in Plymouth in the summer is 71 degrees, and in the winter 29 degrees.
