Guerneville is located in Sonoma county California with a geographic area of 9.7 square miles. The total population in Guerneville is 4,747 with 52.3% male and 47.7% female. Children under age 5 represent 2.6% of the population, under age 18 equal 11.8% of the population and over age 65 is 28.0% of the population. The median household income is $72,480, per capita income is $49,229. There are a total of 2,369 housing units with 67.7% owner occupied. Education includes 19.1% of residents that are high school graduates and 33.7% with a bachelor's degree or higher. The average temperature in Guerneville in the summer is 76 degrees, and in the winter 43 degrees.
