Welsh 1.2% Hungarian 1.0% West Indian 1.0% Ukrainian 1.0% Mexican The five largest estimated ancestry groups in Pennsylvania are: German (28.5%), Irish (18.2%), Italian (12.8%), English (8.5%) and Polish (7.2%). Demographics of Pennsylvania (csv) By race White Black AIAN* Asian NHPI* 2000 (total population) 87.60% 10.71% 0.43% 2.04% 0.07% 2000 (Hispanic