Where in Africa do African Americans come from?

Mainly West and West Central Africa. Micheletti et al. (2020) traced the African ancestry of people in the United States to Senegambia, the Bight of Benin, the Bight of Biafra and the Congo-Angola coast, with Nigerian-related ancestry more common than the direct shipping records predict. A single genome usually carries ancestry from several of these regions.

How much European ancestry do African Americans have?

On average about a quarter. Bryc et al. (2015) found a mean of 24 percent European ancestry in about 5,000 self-identified African Americans, with individuals ranging from almost none to a majority. It entered mostly through European men, which is why European Y-chromosome lineages are far more common than European mitochondrial lineages.

Are there ancient genomes from West Africa?

Almost none. Shum Laka in Cameroon, sequenced by Lipson et al. (2020), is the main exception, and its four individuals belonged to a Central African forager-related lineage that is not ancestral to most present-day West Africans. Other ancient sub-Saharan genomes come from East and southern Africa. Ancient Matches on the African side are therefore sparse compared with the European side.

Can DNA tell which African people or tribe my family came from?

Not precisely. Genome-wide analysis can place African ancestry in a broad region such as Senegambia, southern Nigeria or Angola, and often which region contributes most. It cannot name a specific people, because West African populations are closely related, reference sampling is uneven, and most genomes carry ancestry from several regions at once.

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african-american

September 2, 2026

By Andi Thomaj

8 min read

African American DNA: Ancient Origins, Source Regions and Limits

What genomes say about African American ancestry: West and West Central African source regions, the European share and its sex bias, and the ancient DNA gap.

african-american west-africa ancient-dna qpadm population-genetics

The source regions
The sex bias
What "ancient origins" can mean for the African stream
A dated timeline
What the Y-DNA and mitochondrial DNA add
Limitations
Frequently asked questions about African American DNA

Where in Africa do African Americans come from?
How much European ancestry do African Americans have?
Are there ancient genomes from West Africa?
Can DNA tell which African people or tribe my family came from?
How to model African American ancestry with qpAdm and Global25
Sources and further reading

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African American DNA: Ancient Origins, Source Regions and Limits

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