McDuffie

McDuffie is the 3,613th most common surname in the United States, shared by 9,601 people at the 2020 census. That is about one person in 31,100.

By the numbers

People: 9,601
Rank: 3,613th
How common: 1 in 31,100
Per 100,000: 3.2

Where the name comes from

Anglicized form of Irish and Scottish Gaelic Mac Duibshíthe (“son of Duibshíth”) a personal name composed of the elements dubh (“black”) + síth (“peace”).

Etymology from Wiktionary, used under CC BY-SA 4.0.

Who bears the name

How people with the surname McDuffie described their own race and Hispanic origin at the 2020 census:

Black, not Hispanic 52.7%
White, not Hispanic 38.4%
Two or more races, not Hispanic 5.2%
Hispanic or Latino 3.0%
Asian or Pacific Islander, not Hispanic 0.5%
American Indian or Alaska Native, not Hispanic 0.3%

Surnames like McDuffie

Try it on yourself

Source: US Census Bureau, Frequently Occurring Surnames, 2020. The Census describes the file as the surnames borne by 100 or more people; rarer names are not published. The line is not quite exact, and 617 published names come in under it, the smallest at 92 people. Race and Hispanic origin are self-reported. Rates are worked out against the 298.9 million people the file's own figures are calculated on, which is fewer than the census counted in all: the difference is everyone whose surname was too rare to publish.