Largest Mexican population, US counties · 2010
US counties ranked by the number of residents who are Mexican origin, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Los Angeles County, California leads at 3,541,205. 3,055 counties qualify in total. California carries 13 of the top 25 entries.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which county has the highest mexican population?
Los Angeles County, California ranks #1 with 3,541,205 (2010 American Community Survey).
What are the top 5 counties by mexican population?
Los Angeles County, California, Harris County, Texas, Maricopa County, Arizona, Cook County, Illinois, Orange County, California.
How many counties are in this ranking?
3,055 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 ACS 5-year data.
How is mexican population measured?
Number of residents who are Mexican origin (Hispanic origin, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2010).