to the 2007 estimates, 21.1% of the population had German ancestry, 13.3% had Irish ancestry, 7.9% had Polish ancestry, 6.7% had English ancestry, 6.4% had Italian ancestry, 4.6% listed themselves as American , 2.4% had Swedish ancestry, 2.2% had French ancestry, other than Basque , 1.6% had Dutch ancestry, 1.4% had