Explore the Family Name Desormeau

The meaning of Desormeau

French: variant of Desormeaux and, in North America, (also) an altered form of this.

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

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

Based on the Decennial U.S. Census data, the popularity of the surname Desormeau has seen a slight decline in the United States from 2000 to 2010. In 2000, it was ranked 74,957 in terms of popularity and had fallen to 84,463 by 2010, marking a change of -12.68%. The count of individuals with this surname also dipped from 240 in 2000 to 222 in 2010, a 7.5% decrease. Correspondingly, the proportion per 100,000 people decreased by 11.11% over the decade.

20002010Change
Rank#74,957#84,463-12.68%
Count240222-7.5%
Proportion per 100k0.090.08-11.11%

Race and Ethnicity of people with the last name Desormeau

Regarding the ethnic identity associated with the surname Desormeau, the U.S. Census data shows that in both 2000 and 2010, most people with this surname identified as White (86.25% in 2000 and 86.49% in 2010). Over this period, there was a small increase of 0.28% in the percentage of people identifying as White. In contrast, those identifying as Black made up 10.42% in 2000, increasing to 11.26% in 2010. A small portion of people with this surname identified as belonging to two or more races in 2000 (2.92%), but this category dropped to zero by 2010. There were no recorded instances of people with this surname identifying as Asian/Pacific Islander, Hispanic, or American Indian and Alaskan Native in either year.

20002010Change
White86.25%86.49%0.28%
Black10.42%11.26%8.06%
Asian/Pacific Islander0%0%0%
Two or More Races2.92%0%0%
Hispanic0%0%0%
American Indian and Alaskan Native0%0%0%