10 California Counties Have Over 1 Million Residents, While 21 Counties Have Fewer Than 100,000

Estimated Population for California's 58 Counties as of January 1, 2024

Map of California showing the different populations in each county. Darker counties indicate counties with a higher population and lighter counties represent counties with a lower population. Map shows that 10 counties have more than 1 million residents, whereas 21 counties have fewer than 100,000 residents.