Explore the Family Name Mcduff

The meaning of Mcduff

Scottish and northern Irish: Anglicized form of Gaelic Mac Duibh, a patronymic from the personal name or byname Dubh ‘black, dark-haired, swarthy’. Compare Duff.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Mcduff in the United States?

According to the Decennial U.S. Census data, the popularity of the surname "Mcduff" has seen a slight decline over the decade from 2000 to 2010. The surname was ranked as the 18,857th most popular surname in 2000, but fell to 20,408th place by 2010, a drop of over 8 percent. In terms of count, there were 1,341 individuals with the Mcduff surname in the year 2000, which decreased slightly to 1,302 by the year 2010, experiencing a change of -2.91 percent. The proportion per 100k also experienced a decrease, from 0.5 in 2000 to 0.44 in 2010.

20002010Change
Rank#18,857#20,408-8.23%
Count1,3411,302-2.91%
Proportion per 100k0.50.44-12%

Race and Ethnicity of people with the last name Mcduff

As for the ethnic identity associated with the Mcduff surname, the Decennial U.S. Census data shows shifts between 2000 and 2010. The percentage of those who identify as White decreased slightly from 85.68% to 82.87%. There was also a substantial increase in individuals who identified as Black - up from 10.66% in 2000 to 13.29% in 2010. The Hispanic identification saw a decrease from 2.01% to 1.38%. The category of 'Two or more races' rose from 0.89% to 1.15%, showing an increase of 29.21%. Notably, there were new entries in the categories of Asian/Pacific Islander and American Indian and Alaskan Native in 2010, with percentages of 0.46% and 0.84% respectively, both categories had been at 0% in 2000. This indicates a diversification of ethnic identities associated with the surname over the decade.

20002010Change
White85.68%82.87%-3.28%
Black10.66%13.29%24.67%
Hispanic2.01%1.38%-31.34%
Two or More Races0.89%1.15%29.21%
American Indian and Alaskan Native0%0.84%0%
Asian/Pacific Islander0%0.46%0%