Plumas lake is located in Yuba county California with a geographic area of 11.8 square miles. The total population in Plumas lake is 7,687 with 52.3% male and 47.7% female. Children under age 5 represent 12.4% of the population, under age 18 equal 36.9% of the population and over age 65 is 6.7% of the population. The median household income is $103,832, per capita income is $33,936. There are a total of 2,305 housing units with 80.7% owner occupied. Education includes 14.4% of residents that are high school graduates and 26.5% with a bachelor's degree or higher. The average temperature in Plumas lake in the summer is 76 degrees, and in the winter 43 degrees.