Grimsley is located in Fentress county Tennessee with a geographic area of 10.9 square miles. The total population in Grimsley is 975 with 48.2% male and 51.8% female. Children under age 5 represent 8.4% of the population, under age 18 equal 18.7% of the population and over age 65 is 17.1% of the population. The median household income is $33,011, per capita income is $14,588. There are a total of 319 housing units with 92.5% owner occupied. Education includes 58.6% of residents that are high school graduates and 10.0% with a bachelor's degree or higher. The average temperature in Grimsley in the summer is 77 degrees, and in the winter 38 degrees.