The dominant ethnicity group by population in the United States and Canada culture region is the whites of European ancestry.
US Ethnicity
Almost half of America's population reported to have German Ancestry. The next most commonly reported ancestry is Mexican or Hispanic. The third most common ancestry reported are purely Americans.
The largest ethnicity group by population is White; 66% of America's population consists of whites. The smallest ethnicity group by population is the Native Hawaiians/Pacific Islanders.
This map represents the majority ethnic group per census division in Canada. The major ethnic groups are English and North American Indian, or the indigenous people of North America.