Highest Scotch-Irish population share, US counties · 2020
US counties ranked by the share of all residents who are Scotch-Irish ancestry (2023 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. Avery County, North Carolina leads at 8.7%. 3,101 counties qualify in total. North Carolina 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 scotch-irish share?
Avery County, North Carolina ranks #1 with 8.7% (2020 American Community Survey).
What are the top 5 counties by scotch-irish share?
Avery County, North Carolina, Mitchell County, North Carolina, Daggett County, Utah, Haywood County, North Carolina, Yancey County, North Carolina.
How many counties are in this ranking?
3,101 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 ACS 5-year data.
How is scotch-irish share measured?
Share of all residents who are Scotch-Irish ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2020).