Jamestown is located in Moniteau county Missouri with a geographic area of 1.0 square miles. The total population in Jamestown is 382 with 51.8% male and 48.2% female. Children under age 5 represent 6.0% of the population, under age 18 equal 25.4% of the population and over age 65 is 18.8% of the population. The median household income is $42,083, per capita income is $23,536. There are a total of 165 housing units with 89.7% owner occupied. Education includes 46.7% of residents that are high school graduates and 15.2% with a bachelor's degree or higher. The average temperature in Jamestown in the summer is 77 degrees, and in the winter 32 degrees.