Explore the Family Name Rosseau

The meaning of Rosseau

French (mainly Nord): variant of Rousseau and, in North America, also an altered form of this. This surname is very rare in France. It is also found in Belgium (mainly Flanders).

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

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

Based on the Decennial U.S. Census data, the surname Rosseau's popularity experienced a slight dip between 2000 and 2010. In 2000, the Rosseau surname ranked 82,344 in popularity and decreased to 87,663 by 2010, representing a change of -6.46%. The total count of individuals with the Rosseau surname was 213 in 2000, which slightly dropped to 212 in 2010, a decrease of -0.47%. The proportion of this surname per 100,000 people also fell from 0.08 in 2000 to 0.07 in 2010, marking a 12.5% reduction.

	2000	2010	Change
Rank	#82,344	#87,663	-6.46%
Count	213	212	-0.47%
Proportion per 100k	0.08	0.07	-12.5%

Race and Ethnicity of people with the last name Rosseau

In terms of ethnicity, based on the Decennial U.S. Census data, the majority of individuals with the Rosseau surname identified as White, although there was a small decrease from 92.02% in 2000 to 89.15% in 2010. The percentage of those identifying as Black saw an increase during this period, rising from 3.76% in 2000 to 4.72% in 2010, reflecting a 25.53% growth. There were no recorded individuals with this surname identifying as Asian/Pacific Islander or American Indian and Alaskan Native in either year. The census noted a new appearance in 2010 of individuals identifying with two or more races at 3.30%, while those identifying as Hispanic disappeared from the dataset entirely.

	2000	2010	Change
White	92.02%	89.15%	-3.12%
Black	3.76%	4.72%	25.53%
Two or More Races	0%	3.3%	0%
Asian/Pacific Islander	0%	0%	0%
Hispanic	2.35%	0%	0%
American Indian and Alaskan Native	0%	0%	0%