Surname Checker / Duffy
How Common Is the Last Name Duffy?
Estimated U.S. bearers of the surname Duffy today
42,999
Ranked #892 of 162,254 published surnames · 13.17 per 100,000 Americans (2010 Census) · 38,835 bearers counted in 2010, scaled to today's population.
Ancestry breakdown reported in the 2010 Census
White
90.71%
Black
4.25%
Asian / Pacific Islander
0.67%
Hispanic
2.25%
Percentages are the Census Bureau's published figures for surname bearers in 2010. Figures are estimates from public records — see the methodology page.