Largest Polish population, US counties · 2020
US counties ranked by the number of residents who are Polish 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 399,234. 3,021 counties qualify in total. New York carries 6 of the top 25 entries.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which county has the highest polish population?
Cook County, Illinois ranks #1 with 399,234 (2020 American Community Survey).
What are the top 5 counties by polish population?
Cook County, Illinois, Erie County, New York, Macomb County, Michigan, Wayne County, Michigan, Oakland County, Michigan.
How many counties are in this ranking?
3,021 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 ACS 5-year data.
How is polish population measured?
Number of residents who are Polish ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2020).