Highest Irish population share, US metro areas · 2010
US metro areas ranked by the share of all residents who are Irish ancestry (2023 American Community Survey). A concentration measure: Irish residents as a percentage of total population. Butte-Silver Bow, MT leads at 32.6%. 918 metro areas qualify in total. New York carries 8 of the top 25 entries.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which metro area has the highest irish share?
Butte-Silver Bow, MT ranks #1 with 32.6% (2010 American Community Survey).
What are the top 5 metro areas by irish share?
Butte-Silver Bow, MT, Barnstable, MA, Boston-Cambridge-Newton, MA-NH, Auburn, NY, Pittsfield, MA.
How many metro areas are in this ranking?
918 metro areas qualify after filtering for population minimums and data availability. The ranking covers 2010 ACS 5-year data.
How is irish share measured?
Share of all residents who are Irish ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2010).