- European: The majority of the US population has European ancestry, with the largest groups tracing their origins to England, Germany, Ireland, Italy, and Eastern Europe (such as Poland, Russia, and Ukraine).
- African: African Americans make up a significant portion of the US population and are descended from enslaved people who were brought to the Americas from various regions of Africa, primarily West Africa.
- Hispanic/Latino: Hispanic and Latino Americans come from diverse cultural backgrounds, primarily originating from Mexico, Puerto Rico, Cuba, the Dominican Republic, and other Latin American countries.
- Asian: Asian Americans represent a growing part of the US population, with ancestral ties to China, India, the Philippines, Japan, Korea, and other Asian nations.
- Native American: Native American tribes are indigenous to the Americas and have rich cultural traditions and histories that predate European colonization.
In addition to these major ancestral cultures, there are individuals and groups with ancestry from other parts of the world, including the Middle East, Oceania, and various African countries. The diversity of ancestral cultures in the US population is a reflection of the nation's history, immigration patterns, and cultural interactions over time.