In 2018, Sonoma County, CA had a population of 500k people with a median age of 42.4 and a median household income of $81,395. Between 2017 and 2018 the population of Sonoma County, CA declined from 504,217 to 499,942, a -0.848% decrease and its median household income grew from $80,409 to $81,395, a 1.23% increase.
The 5 largest ethnic groups in Sonoma County, CA are White (Non-Hispanic) (62.8%), Other (Hispanic) (13.6%), White (Hispanic) (11.1%), Asian (Non-Hispanic) (4.17%), and Two+ (Non-Hispanic) (3.53%). 0% of the households in Sonoma County, CA speak a non-English language at home as their primary language, and 90.2% of the residents in Sonoma County, CA are U.S. citizens.
In 2018, the median property value in Sonoma County, CA was $655,200, and the homeownership rate was 61.5%. Most people in Sonoma County, CA drove alone to work, and the average commute time was 23.5 minutes. The average car ownership in Sonoma County, CA was 2 cars per household.