Major components of the European segment of the United States population are descended from immigrants from Germany (19.2%), Ireland (10.8%), England (7.7%), Scotland (5.8%), Italy (5.6%), Scandinavia (3.7%) and Poland (3.2%) with many immigrants also coming from other Slavic countries.

Fifteen largest ancestries in the United States (2000 Census):[5]
Fifteen largest ancestries in 2000.