Largest Scotch-Irish population, US states · 2020
US states ranked by the number of residents who are Scotch-Irish ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Texas leads at 249,798. 51 states qualify in total. The top 25 average 99,318, against an all-states median of 32,957.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which state has the highest scotch-irish population?
Texas ranks #1 with 249,798 (2020 American Community Survey).
What are the top 5 states by scotch-irish population?
Texas, North Carolina, California, Florida, Pennsylvania.
How many states are in this ranking?
51 states qualify after filtering for population minimums and data availability. The ranking covers 2020 ACS 5-year data.
How is scotch-irish population measured?
Number of residents who are Scotch-Irish ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2020).