Upper lake is located in Lake county California with a geographic area of 1.7 square miles. The total population in Upper lake is 1,250 with 57.9% male and 42.1% female. Children under age 5 represent 7.2% of the population, under age 18 equal 14.6% of the population and over age 65 is 9.3% of the population. The median household income is $89,083, per capita income is $33,964. There are a total of 457 housing units with 84.5% owner occupied. Education includes 45.7% of residents that are high school graduates and 12.3% with a bachelor's degree or higher. The average temperature in Upper lake in the summer is 76 degrees, and in the winter 43 degrees.