Most racially diverse, US counties
US counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2024 ACS). Queens County, New York leads at 96. 3,144 counties qualify in total. California carries 5 of the top 25 entries. The median across all 3,144 is 41.
Flip the list · Least racially diverse, US counties →UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which county has the highest diversity score?
Queens County, New York ranks #1 with 96 (2024 American Community Survey).
What are the top 5 counties by diversity score?
Queens County, New York, Fort Bend County, Texas, Solano County, California, Gwinnett County, Georgia, Alameda County, California.
How many counties are in this ranking?
3,144 counties qualify after filtering for population minimums and data availability. The ranking covers 2024 ACS 5-year data.
How is diversity score measured?
CensusEasy Diversity Score (0 to 100): the chance that two random residents are of a different race or ethnicity, rescaled so 100 is a perfectly even split across all five groups. A Simpson diversity index over the five ACS race and ethnicity shares. Source: US Census Bureau, American Community Survey 5-year estimates (2024).