Cities with the largest Irish-American populations (by percentage):
Twenty-two million Americans --or about 7.2 percent of the population-- say their “primary ancestry” is Irish, according to the US Census’s American Community Survey. Another 13.5 million Americans claim at least some Irish ancestry, bringing the total to 35.5 million Americans --or 11.6 percent of the population-- who have at least partial Irish ancestry.
10. Wilmington, DE, 13 percent
9. Long Island, NY, 13.1 percent
8. Philadelphia, PA, 14.2 percent
7. Camden, NJ, 14.8 percent
6. Worcester, MA, 14.8 percent
5. Syracuse, NY, 15 percent
4. Albany, NY, 15.6 percent
3. Peabody, MA, 16.9 percent
2. Middlesex County, MA, 16.9 percent
1. Boston, MA, 20.4 percent