Topaz is located in Mono county California with a geographic area of 12.2 square miles. The total population in Topaz is 369 with 62.9% male and 37.1% female. Children under age 5 represent 0.0% of the population, under age 18 equal 0.0% of the population and over age 65 is 3.3% of the population. The median household income is $73,396, per capita income is $51,120. There are a total of 133 housing units with 75.2% owner occupied. Education includes 0.0% of residents that are high school graduates and 24.8% with a bachelor's degree or higher. The average temperature in Topaz in the summer is 76 degrees, and in the winter 43 degrees.