| Ancestry Group | Percentage of Total U.S. Population |
|---|---|
| German | 16.5 |
| Irish | 12.0 |
| English | 9.0 |
| Italian | 5.9 |
| Polish | 3.3 |
| French (except Basque) | 3.1 |
| Scottish | 1.9 |
| Dutch | 1.6 |
| Norwegian | 1.5 |
| Swedish | 1.4 |
| *Does not include those individuals who identified themselves as Other or American or who chose not to classify or report their ancestry. (Source: U.S. Bureau of the Census, 2009.) | |