In 2019, Marin County, CA had a population of 259k people with a median age of 47.3 and a median household income of $110,843. Between 2018 and 2019 the population of Marin County, CA declined from 259,666 to 258,826, a −0.323% decrease and its median household income declined from $126,373 to $110,843, a −12.3% decrease.
The 5 largest ethnic groups in Marin County, CA are White (Non-Hispanic) (70.9%), White (Hispanic) (7.94%), Other (Hispanic) (6.92%), Asian (Non-Hispanic) (6.33%), and Two+ (Non-Hispanic) (3.5%). 0% of the households in Marin County, CA speak a non-English language at home as their primary language, and 91.3% of the residents in Marin County, CA are U.S. citizens.
In 2019, the median property value in Marin County, CA was $1.08M, and the homeownership rate was 62%. Most people in Marin County, CA drove alone to work, and the average commute time was 28.8 minutes. The average car ownership in Marin County, CA was 2 cars per household.