Largest Croatian population, US counties
US counties ranked by the number of residents who are Croatian ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Cook County, Illinois leads at 15,378. 1,704 counties qualify in total. California carries 4 of the top 25 entries.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which county has the highest croatian population?
Cook County, Illinois ranks #1 with 15,378 (2024 American Community Survey).
What are the top 5 counties by croatian population?
Cook County, Illinois, Allegheny County, Pennsylvania, Los Angeles County, California, Maricopa County, Arizona, Cuyahoga County, Ohio.
How many counties are in this ranking?
1,704 counties qualify after filtering for population minimums and data availability. The ranking covers 2024 ACS 5-year data.
How is croatian population measured?
Number of residents who are Croatian ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2024).