Round mountain is located in Shasta county California with a geographic area of 1.7 square miles. The total population in Round mountain is 100 with 32.0% male and 68.0% female. Children under age 5 represent 0.0% of the population, under age 18 equal 12.0% of the population and over age 65 is 29.0% of the population. The median household income is $32,708, per capita income is $22,278. There are a total of 55 housing units with 87.3% owner occupied. Education includes 23.6% of residents that are high school graduates and 3.6% with a bachelor's degree or higher. The average temperature in Round mountain in the summer is 76 degrees, and in the winter 43 degrees.