Explore the Family Name Guilbeault

The meaning of Guilbeault

French: variant of Guilbault and, in North America, (also) an altered form of this. This surname is very rare in France. Some characteristic forenames: French Adelard, Adrien, Armand, Donat, Emile, Laurent, Lucien, Normand.

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

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

Based on the Decennial U.S. Census, the surname Guilbeault has seen a slight decline in popularity between 2000 and 2010. In 2000, Guilbeault ranked 44,574th in popularity with a count of 454 individuals bearing the name. By 2010, although the rank had fallen to 47,272, the count only slightly decreased to 449. This change represents a 6.05% decrease in ranking and a 1.1% decrease in the total count. The proportion of people named Guilbeault per 100,000 dropped by 11.76%, from 0.17 to 0.15.

	2000	2010	Change
Rank	#44,574	#47,272	-6.05%
Count	454	449	-1.1%
Proportion per 100k	0.17	0.15	-11.76%

Race and Ethnicity of people with the last name Guilbeault

Ethnic identity for the Guilbeault surname is predominantly White, according to the Decennial U.S. Census data. However, there was a notable shift between 2000 and 2010. In 2000, 99.12% of people with the Guilbeault surname identified as White. By 2010, this percentage fell to 95.10, marking a decrease of 4.06%. Meanwhile, an increase was observed among those identifying as Hispanic, rising from zero to 2.90% in 2010. The census also recorded a minor percentage (1.11%) of individuals with the Guilbeault surname identifying as belonging to two or more races in 2010, where none were recorded in 2000. Other ethnic identities including Asian/Pacific Islander, Black, and American Indian and Alaskan Native remained at 0% for both years.

	2000	2010	Change
White	99.12%	95.1%	-4.06%
Hispanic	0%	2.9%	0%
Two or More Races	0%	1.11%	0%
Asian/Pacific Islander	0%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%