Ranking of California Counties By Population with Celtic Ancestry in 2021

Based on the US Census ACS-5Yrs estimates, in 2021, there were 4.61K people in California with Celtic ancestry. Among all California counties, Los Angeles County had the highest population with Celtic ancestry (602), followed by San Diego County (373), and Sacramento County (291).

The chart and table below shows the top 10 counties with high number of people with Celtic ancestry.

You can see similar information for other states and for other ancestry groups in California.