Highest Slovak population share, US counties · 2010
US counties ranked by the share of all residents who are Slovak ancestry (2023 American Community Survey). A concentration measure: Slovak residents as a percentage of total population. Cambria County, Pennsylvania leads at 7.5%. 1,834 counties qualify in total. Pennsylvania carries 17 of the top 25 entries.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which county has the highest slovak share?
Cambria County, Pennsylvania ranks #1 with 7.5% (2010 American Community Survey).
What are the top 5 counties by slovak share?
Cambria County, Pennsylvania, Mahoning County, Ohio, Fayette County, Pennsylvania, Westmoreland County, Pennsylvania, Carbon County, Pennsylvania.
How many counties are in this ranking?
1,834 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 ACS 5-year data.
How is slovak share measured?
Share of all residents who are Slovak ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2010).