
Los Angeles County
- State:
- California
- County Seat:
- Los Angeles
Los Angeles County's estimated 2025 population is 9,550,505 with a growth rate of -0.59% in the past year according to the most recent United States census data. Los Angeles County is the largest county in California. The 2010 population was 9,821,647 and has seen a growth of -2.76% since that time.