The state with the most residents claiming Irish ancestry is California, which is home to nearly 2.2 million people claiming Irish ancestry, according to the Census’ 2022 American Community ...

Explore collection items related to Ireland and Irish American history and heritage. Learn how a chance encounter and the Smithsonian Folklife Festival helped launch a revival of Irish American music.

If Ireland invited every American with Irish ancestry to its St. Patrick's Day celebrations, it would need a lot more Guinness. Approximately 162 million Americans – more than 20 times Ireland ...