In 2019, Sonoma County, CA had a population of 494k people with a median age of 43.1 and a median household income of $87,828. Between 2018 and 2019 the population of Sonoma County, CA declined from 499,942 to 494,336, a −1.12% decrease and its median household income grew from $81,395 to $87,828, a 7.9% increase.
The 5 largest ethnic groups in Sonoma County, CA are White (Non-Hispanic) (62.7%), Other (Hispanic) (13.5%), White (Hispanic) (11.1%), Asian (Non-Hispanic) (4.13%), and Two+ (Non-Hispanic) (3.57%). 0% of the households in Sonoma County, CA speak a non-English language at home as their primary language, and 92.2% of the residents in Sonoma County, CA are U.S. citizens.
In 2019, the median property value in Sonoma County, CA was $664,600, and the homeownership rate was 62.2%. Most people in Sonoma County, CA drove alone to work, and the average commute time was 24 minutes. The average car ownership in Sonoma County, CA was 2 cars per household.