Explore the Family Name Therriault

The meaning of Therriault

Variant of Thériault (see Theriault), a surname of French origin. History: Bearers of the surname Therriault are descendants of Jean Terriot from France (see Theriot). Some characteristic forenames: French Emile, Andre, Camille, Cecile, Fernand, Lucien, Marcel, Normand, Rudolphe.

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

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

Based on the Decennial U.S. Census, the surname Therriault has seen a slight decline in popularity between 2000 and 2010. In the year 2000, it ranked 25,524th in frequency of use but dropped to 26,534th by 2010, a decrease of approximately 3.96%. Despite this, the actual count of people bearing the surname slightly increased from 909 in 2000 to 919 in 2010, representing a growth of 1.1%. However, when looking at the proportion per 100,000 people, there was a decrease of around 8.82%, from 0.34 in 2000 to 0.31 in 2010.

20002010Change
Rank#25,524#26,534-3.96%
Count9099191.1%
Proportion per 100k0.340.31-8.82%

Race and Ethnicity of people with the last name Therriault

Turning to ethnic identity, information derived from the Decennial U.S. Census indicates that the Therriault surname is predominantly associated with White ethnicity. In 2000, approximately 95.71% of those with the Therriault surname identified as White, though this proportion slightly decreased to 94.34% by 2010. There's been a significant increase in the number of individuals identifying as Hispanic, rising from 0.66% to 1.74% over the decade, which represents an impressive 163.64% change. The percentage of those reporting two or more ethnicities also rose from 1.98% to 2.07%. Data for Asian/Pacific Islander and Black ethnicities were either suppressed or non-existent. The proportion of those identifying as American Indian and Alaskan Native marginally increased from 0.77% in 2000 to 0.98% in 2010.

20002010Change
White95.71%94.34%-1.43%
Two or More Races1.98%2.07%4.55%
Hispanic0.66%1.74%163.64%
American Indian and Alaskan Native0.77%0.98%27.27%
Asian/Pacific Islander0%0%0%
Black0%0%0%