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.
91.3% of the residents in Marin County, CA are U.S. citizens.
The largest universities in Marin County, CA are Dominican University of California (481 degrees awarded in 2020) and College of Marin (469 degrees).
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.
Marin County, CA borders Contra Costa County, CA, San Francisco County, CA, Solano County, CA, and Sonoma County, CA.