Largest Romanian population, US counties · 2020
US counties ranked by the number of residents who are Romanian 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 21,874. 1,667 counties qualify in total. California carries 5 of the top 25 entries.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which county has the highest romanian population?
Cook County, Illinois ranks #1 with 21,874 (2020 American Community Survey).
What are the top 5 counties by romanian population?
Cook County, Illinois, Los Angeles County, California, Maricopa County, Arizona, New York County, New York, Queens County, New York.
How many counties are in this ranking?
1,667 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 ACS 5-year data.
How is romanian population measured?
Number of residents who are Romanian ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2020).