Explore the Family Name Tetro

The meaning of Tetro

1. Altered form of French Tétreau (see Tetreau). 2. Italian (Apulia): nickname from the adjective tetro ‘dark’. History: Some of the American bearers of the surname Tetro are descendants of Louis Tétreau/Tétrault from France (see Tetreau). Some characteristic forenames: Italian Rocco, Concetta, Mauro.

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

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

The surname Tetro holds the rank of 40,610 in popularity based on the 2010 Decennial U.S. Census data, falling from its previous ranking of 38,198 in 2000. This change indicates a drop of 6.31% in its popularity over the decade. In terms of count, there were 538 individuals with the last name Tetro in 2010 as compared to 545 in 2000, representing a slight decrease of 1.28%. The proportion of the Tetro surname per 100,000 people also decreased by 10% from 0.2 in 2000 to 0.18 in 2010.

	2000	2010	Change
Rank	#38,198	#40,610	-6.31%
Count	545	538	-1.28%
Proportion per 100k	0.2	0.18	-10%

Race and Ethnicity of people with the last name Tetro

In terms of ethnicity based on the same Decennial U.S. Census data, most of the individuals with the Tetro surname identified as White in both 2000 (95.60%) and 2010 (95.35%), with only a minimal decline of 0.26%. The Hispanic ethnicity saw a more significant drop of 10.58%, going from 3.12% in 2000 to 2.79% in 2010. Ethnic identity for Asian/Pacific Islander was registered at 0.93% in 2010, but no such data was available for 2000. There were no changes noted in other ethnic identities such as Black, American Indian, Alaskan Native or those identifying as two or more races.

	2000	2010	Change
White	95.6%	95.35%	-0.26%
Hispanic	3.12%	2.79%	-10.58%
Asian/Pacific Islander	0%	0.93%	0%
Two or More Races	0%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%