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Irish Americans are citizens of the United States who can trace their ancestry to Ireland. A total of 36,278,332 Americans—estimated at 11.9% of the total population—reported Irish ancestry in the 2008 American Community Survey conducted by the U.S. Census Bureau. Roughly another 3.5 million identified more specifically with Scotch-Irish ancestry. The Irish diaspora population in the...  MORE

Irish Americans are citizens of the United States who can trace their ancestry to Ireland. A total of 36,278,332 Americans—estimated at 11.9% of the total population—reported Irish ancestry in the 2008 American Community Survey conducted by the U.S. Census Bureau. Roughly another 3.5 million identified more specifically with Scotch-Irish ancestry. The Irish diaspora population in the United States is roughly six times the modern population of Ireland. The only self-reported ancestral group larger than Irish Americans is German Americans. The Irish are widely dispersed in terms of geography, and demographics. Irish American political leaders have played a major role in local and national politics since before the American Revolutionary War: eight Irish Americans signed the United States Declaration of Independence, and twenty-two American Presidents, from Andrew Jackson to Barack Obama, have been at least partly of Irish ancestry. LESS