how many americans with irish ancestry live in the united states?
About 33.3 million Americansâ10.5% of the total populationâreported Irish ancestry in the 2013 American Community Survey conducted by the U.S. Census Bureau. This compares with a population of 6.4 million on the island of Ireland.
The following statistics are compiled from a number of national censuses, and refer to those born in the Republic of Ireland, unless stated otherwise. 1  Just under 500,000 lived in Britain in 2001. 2  156,000 in the US in 2000. 3  About 50,000 in Australia, with 21,000 from Northern Ireland.  22,800 in Canada (2001 Census)