Sonoma is located in Sonoma county California with a geographic area of 2.7 square miles. The total population in Sonoma is 11,082 with 45.0% male and 55.0% female. Children under age 5 represent 3.2% of the population, under age 18 equal 14.1% of the population and over age 65 is 32.5% of the population. The median household income is $85,509, per capita income is $56,109. There are a total of 5,446 housing units with 60.3% owner occupied. Education includes 15.9% of residents that are high school graduates and 49.2% with a bachelor's degree or higher. The average temperature in Sonoma in the summer is 70 degrees, and in the winter 43 degrees.