Explore the Family Name Tadeo

The meaning of Tadeo

1. Spanish: from a vernacular form of the Latin personal name Thaddeus (see Taddeo). 2. Italian: variant of Taddeo. Some characteristic forenames: Spanish Juan, Jose, Alberto, Anselmo, Armando, Eusebio, Javier, Mario, Raul, Adriana, Agustina, Angel. Italian Angelo, Narcisso.

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

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

Based on the Decennial U.S. Census data, the popularity of the surname Tadeo increased significantly between 2000 and 2010. In terms of rank, it climbed from 17,170 in 2000 to 11,970 in 2010, a change of over 30%. The number of people with this last name also rose substantially during this period, with the count going up from 1,522 to 2,610, reflecting a growth rate of over 71%. The proportion per 100,000 people also saw an increase of about 57%, moving from 0.56 to 0.88.

	2000	2010	Change
Rank	#17,170	#11,970	30.29%
Count	1,522	2,610	71.48%
Proportion per 100k	0.56	0.88	57.14%

Race and Ethnicity of people with the last name Tadeo

When it comes to the ethnic identity associated with the surname Tadeo, there have been notable shifts recorded in the Decennial U.S. Census data between 2000 and 2010. The Hispanic community showed the highest percentage with this surname, growing from 71.16% to 75.48%. Conversely, the proportion of those identifying as White with this surname dropped by roughly 33%, declining from 8.08% to 5.4%. There was a slight decrease within the Asian/Pacific Islander group, decreasing by 9.61%, while the category of two or more races experienced a slight increase from 1.84% to 2.03%. It's important to note that the categories for Black and American Indian and Alaskan Native were suppressed for privacy purposes.

	2000	2010	Change
Hispanic	71.16%	75.48%	6.07%
Asian/Pacific Islander	18.73%	16.93%	-9.61%
White	8.08%	5.4%	-33.17%
Two or More Races	1.84%	2.03%	10.33%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%