In 2018, Contra Costa County, CA had a population of 1.15M people with a median age of 40 and a median household income of $101,618. Between 2017 and 2018 the population of Contra Costa County, CA grew from 1.15M to 1.15M, a 0.242% increase and its median household income grew from $95,339 to $101,618, a 6.59% increase.
The 5 largest ethnic groups in Contra Costa County, CA are White (Non-Hispanic) (43%), Asian (Non-Hispanic) (16.8%), Some Other Race (Hispanic) (11.3%), White (Hispanic) (11.1%), and Black or African American (Non-Hispanic) (8.54%). 36% of the people in Contra Costa County, CA speak a non-English language, and 88.9% are U.S. citizens.
The largest universities in Contra Costa County, CA are Diablo Valley College (2,828 degrees awarded in 2017), Los Medanos College (2,445 degrees), and Saint Mary's College of California (1,299 degrees).
The median property value in Contra Costa County, CA is $670,000, and the homeownership rate is 66.7%. Most people in Contra Costa County, CA commute by Drove Alone, and the average commute time is 37.3 minutes. The average car ownership in Contra Costa County, CA is 2 cars per household.