Explore the Family Name Trepanier

The meaning of Trepanier

Altered form of French Trépagny: habitational name from Étrépagny, a place in Eure. History: Romain Trépanier/(de) Trépagny from Muchedent in Seine-Maritime, France, married Geneviève Drouin in Quebec City, QC, in 1656. Some characteristic forenames: French Marcel, Gilles, Pierre, Raynald, Alain, Andre, Armand, Cecile, Gaston, Gisele, Henri, Jacques.

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

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

According to the Decennial U.S. Census, the popularity of the surname Trepanier slightly decreased between 2000 and 2010. In 2000, it ranked 15,356 in popularity among all surnames in the United States, falling to 16,385 in 2010, a change of -6.7%. However, the actual count of individuals with the Trepanier surname remained virtually the same during this period, increasing by only 0.06% from 1,756 in 2000 to 1,757 in 2010. The proportion per 100,000 people also saw a minor decrease of -7.69%, from 0.65 in 2000 to 0.6 in 2010.

20002010Change
Rank#15,356#16,385-6.7%
Count1,7561,7570.06%
Proportion per 100k0.650.6-7.69%

Race and Ethnicity of people with the last name Trepanier

When examining the ethnic identity associated with the surname Trepanier, the data from the Decennial U.S. Census reveals that the majority of persons with this surname identified as White, although this percentage fell slightly from 93.91% in 2000 to 92.26% in 2010. Meanwhile, the proportion identifying as Hispanic almost doubled, rising from 1.08% in 2000 to 1.99% in 2010. The percentage of those identifying as American Indian and Alaskan Native also increased, moving up from 2.90% in 2000 to 3.47% in 2010. There were no reported changes for those identifying as Asian/Pacific Islander or Black, and the proportion reporting two or more races remained steady at 1.37%.

20002010Change
White93.91%92.26%-1.76%
American Indian and Alaskan Native2.9%3.47%19.66%
Hispanic1.08%1.99%84.26%
Two or More Races1.37%1.37%0%
Asian/Pacific Islander0%0%0%
Black0%0%0%