Mountain city is located in Johnson county Tennessee with a geographic area of 3.4 square miles. The total population in Mountain city is 2,062 with 48.3% male and 51.7% female. Children under age 5 represent 6.0% of the population, under age 18 equal 16.3% of the population and over age 65 is 32.9% of the population. The median household income is $27,155, per capita income is $19,139. There are a total of 946 housing units with 53.8% owner occupied. Education includes 32.1% of residents that are high school graduates and 8.2% with a bachelor's degree or higher. The average temperature in Mountain city in the summer is 77 degrees, and in the winter 38 degrees.