Surname Checker / Duncan
How Common Is the Last Name Duncan?
Estimated U.S. bearers of the surname Duncan today
149,682
Ranked #212 of 162,254 published surnames · 45.83 per 100,000 Americans (2010 Census) · 135,187 bearers counted in 2010, scaled to today's population.
Ancestry breakdown reported in the 2010 Census
White
76.39%
Black
17.33%
Asian / Pacific Islander
0.52%
Hispanic
2.55%
Percentages are the Census Bureau's published figures for surname bearers in 2010. Figures are estimates from public records — see the methodology page.