Explore the Family Name Mersereau

The meaning of Mersereau

Altered form of French Mercereau. History: This surname is listed along with its original form Mercereau in the (US) National Huguenot Society’s register of qualified Huguenot ancestors.

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

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

According to the Decennial U.S. Census, the popularity of the surname Mersereau has seen a slight decrease between 2000 and 2010. In 2000, it was ranked the 35,239th most common surname in the United States, but dropped to the 36,585th position by 2010, indicating a change of -3.82%. However, the number of individuals carrying the Mersereau surname increased slightly from 605 to 611 over the same period, a minor growth of 0.99%. The proportion per 100 thousand people also saw a small decline of 4.55%, moving from 0.22 to 0.21.

	2000	2010	Change
Rank	#35,239	#36,585	-3.82%
Count	605	611	0.99%
Proportion per 100k	0.22	0.21	-4.55%

Race and Ethnicity of people with the last name Mersereau

The Decennial U.S. Census data on the ethnicity associated with the Mersereau surname reveals some shifts as well. In terms of ethnicity, the majority of Mersereaus identified as White, increasing from 92.89% in 2000 to 94.76% in 2010. There were decreases in the number of Mersereaus identifying with two or more races (from 3.14% to 1.96%) and those identifying as Hispanic (from 1.98% to 1.47%). The percentage of Mersereaus identifying as Asian/Pacific Islander went down to zero in 2010 from 0.83% in 2000. Meanwhile, the 2010 census marked the first appearance of Mersereaus identifying as American Indian and Alaskan Native, at 0.98%.

	2000	2010	Change
White	92.89%	94.76%	2.01%
Two or More Races	3.14%	1.96%	-37.58%
Hispanic	1.98%	1.47%	-25.76%
American Indian and Alaskan Native	0%	0.98%	0%
Asian/Pacific Islander	0.83%	0%	0%
Black	0%	0%	0%