Marthasville is located in Warren county Missouri with a geographic area of 0.9 square miles. The total population in Marthasville is 2,410 with 51.0% male and 49.0% female. Children under age 5 represent 4.4% of the population, under age 18 equal 35.6% of the population and over age 65 is 4.8% of the population. The median household income is $96,528, per capita income is $26,315. There are a total of 728 housing units with 86.5% owner occupied. Education includes 40.7% of residents that are high school graduates and 19.4% with a bachelor's degree or higher. The average temperature in Marthasville in the summer is 76 degrees, and in the winter 32 degrees.
