Explore the Family Name Tesauro

The meaning of Tesauro

Italian: metonymic occupational name for a treasurer or person in charge of financial administration, from Old Italian tesauro ‘treasure, treasury’ (from Latin thesaurus ‘hoard’). It may also be from the personal name Tesauro, with the same origin. Compare Tesoro 2. Some characteristic forenames: Italian Massimino, Vita.

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

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

According to the Decennial U.S. Census, the popularity of the surname Tesauro saw a slight decrease between 2000 and 2010. The ranking of the surname dropped from 53,904 in 2000 to 56,444 in 2010, showing a decline of 4.71%. However, the actual count of individuals with the Tesauro surname slightly increased from 359 in 2000 to 362 in 2010, indicating a modest growth of 0.84%. The proportion per 100,000 people decreased by 7.69%, moving from 0.13 in 2000 to 0.12 in 2010.

	2000	2010	Change
Rank	#53,904	#56,444	-4.71%
Count	359	362	0.84%
Proportion per 100k	0.13	0.12	-7.69%

Race and Ethnicity of people with the last name Tesauro

In terms of ethnicity, the Decennial U.S. Census data shows that the vast majority of individuals with the Tesauro surname identify as White. In 2000, this percentage was 97.21% and it marginally increased to 97.24% in 2010. A small percentage identified as Hispanic, but this number decreased from 2.23% in 2000 to 1.93% in 2010, a change of -13.45%. No individuals with this surname identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native during either census year. The category of two or more races also remained at zero for both years.

	2000	2010	Change
White	97.21%	97.24%	0.03%
Hispanic	2.23%	1.93%	-13.45%
Asian/Pacific Islander	0%	0%	0%
Two or More Races	0%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%