Highest Finnish population share, US counties · 2010
US counties ranked by the share of all residents who are Finnish ancestry (2023 American Community Survey). A concentration measure: Finnish residents as a percentage of total population. Keweenaw County, Michigan leads at 44.0%. 2,022 counties qualify in total. Michigan carries 10 of the top 25 entries.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which county has the highest finnish share?
Keweenaw County, Michigan ranks #1 with 44.0% (2010 American Community Survey).
What are the top 5 counties by finnish share?
Keweenaw County, Michigan, Houghton County, Michigan, Ontonagon County, Michigan, Baraga County, Michigan, Marquette County, Michigan.
How many counties are in this ranking?
2,022 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 ACS 5-year data.
How is finnish share measured?
Share of all residents who are Finnish ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2010).