Explore the Family Name Blackmun

The meaning of Blackmun

English: variant of Blackman. This form of the surname is now rare in Britain.

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

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

Based on the Decennial U.S. Census, the popularity of the surname Blackmun has seen a significant increase between 2000 and 2010. In 2000, it was ranked 100,663 in terms of popularity but jumped to 89,403 in 2010, representing an 11.19% change. The number of individuals carrying the Blackmun surname also increased during this period from 166 to 207, a growth of 24.7%. As a result, the proportion per 100k people rose by 16.67%, from 0.06 to 0.07.

20002010Change
Rank#100,663#89,40311.19%
Count16620724.7%
Proportion per 100k0.060.0716.67%

Race and Ethnicity of people with the last name Blackmun

The ethnic identity associated with the surname Blackmun has also shown some changes between 2000 and 2010, according to the Decennial U.S. Census. While the majority of individuals with this surname identified as White in both years (84.34% in 2000 and 85.99% in 2010), there was a decrease in those identifying as Black (from 7.83% in 2000 to 6.76% in 2010). There was no data available for Asian/Pacific Islander ethnicity in 2010, compared to 4.22% recorded in 2000. A new category emerged in 2010, with 3.86% of Blackmuns identifying as having two or more races. No individuals with this surname identified as Hispanic or American Indian and Alaskan Native in either year.

20002010Change
White84.34%85.99%1.96%
Black7.83%6.76%-13.67%
Two or More Races0%3.86%0%
Asian/Pacific Islander4.22%0%0%
Hispanic0%0%0%
American Indian and Alaskan Native0%0%0%