Surname Checker / Mcwilliams
How Common Is the Last Name Mcwilliams?
Estimated U.S. bearers of the surname Mcwilliams today
22,724
Ranked #1,746 of 162,254 published surnames · 6.96 per 100,000 Americans (2010 Census) · 20,523 bearers counted in 2010, scaled to today's population.
Ancestry breakdown reported in the 2010 Census
White
76.7%
Black
17.64%
Asian / Pacific Islander
0.56%
Hispanic
2.53%
Percentages are the Census Bureau's published figures for surname bearers in 2010. Figures are estimates from public records — see the methodology page.