Find out how popular the last name Tadeo is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named Tadeo.

Tadeo, like all of the last names we have data for, is identified by the U.S. Census Bureau as a surname which has more than 100 occurrences in the United States in the Decennial Census survey. The most recent statistics we have for the Tadeo surname is from the 2010 census data.

Popularity of Tadeo in America

Tadeo is the 11970th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Tadeo surname appeared 2,610 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 1 people would have the surname Tadeo.

We can also compare 2010 data for Tadeo to data from the previous census in 2000. The table below contains all of the statistics for both years in a side-by-side comparison.

The history of the last name Tadeo

The surname TADEO has its origins in Spain, dating back to the medieval period around the 12th century. It is derived from the Spanish personal name Tadeo, which in turn comes from the Latin Thaddaeus, meaning "heart" or "courageous." This name traces its roots to the Aramaic name Taddai, borne by one of the twelve apostles of Jesus Christ.

The earliest recorded instances of the surname TADEO can be found in various Spanish documents from the 13th and 14th centuries, particularly in regions like Castile and Aragon. It is believed that the name was initially adopted as a patronymic, indicating descent from an ancestor named Tadeo.

One notable historical reference to the surname TADEO appears in the Libro de la Montería, a 14th-century manuscript commissioned by King Alfonso XI of Castile, which contains a list of participants in royal hunts. The name Tadeo is mentioned among the attendees, suggesting the presence of individuals bearing this surname during that period.

In the 15th century, a prominent figure with the surname TADEO was Juan Tadeo de Rojas (c. 1450-1521), a Spanish nobleman and military commander who served as the Governor of Galicia and played a significant role in the conquest of Granada. His exploits were documented in various historical accounts from that era.

Another noteworthy individual was Diego Tadeo González de Samano (1744-1814), a Spanish lawyer, politician, and judge who served as the President of the Supreme Council of Spain and the Indies during the early 19th century, a position of great importance in the Spanish colonial administration.

During the 16th and 17th centuries, the TADEO surname was also found in various regions of Spain, including Catalonia and Valencia, where it was sometimes spelled as "Tedeo" or "Thadeo," reflecting regional variations in pronunciation and spelling.

One remarkable figure from this period was Fray Tadeo de San Elíseo (1570-1638), a Spanish Carmelite friar and mystic who lived in the convent of San Hermenegildo in Madrid. He was known for his spiritual writings and his reputation for sanctity.

In the 18th century, the surname TADEO gained prominence in the Spanish colonies of the Americas. One notable bearer was José Tadeo Bravo (1778-1818), a Venezuelan military leader and patriot who fought in the Venezuelan War of Independence against Spanish rule.

These are just a few examples of individuals who carried the surname TADEO throughout history, reflecting its Spanish origins and its presence across various regions and time periods.

Race and ethnic origin of people with the last name Tadeo

We also have some data on the ancestry of people with the surname Tadeo.

The below race categories are the modified race categories used in the Census Bureau's population estimates program. All people were categorized into six mutually exclusive racial and Hispanic origin groups:

1. White only
2. Black only
3. American Indian and Alaskan Native only
4. Asian and Pacific Islander only
5. Hispanic
6. Two or More Races

For the most recent 2010 census data, the race/ethnic origin breakdown for Tadeo was:

Note: Any fields showing (S) means the data was suppressed for privacy so that the data does not in any way identify any specific individuals.

Since we have data from the previous census in 2000, we can also compare the values to see how the popularity of Tadeo has changed in the 10 years between the two census surveys.

Data source

The last name data and ethnic breakdown of last names is sourced directly from the Decennial Census survey, conducted every 10 years by the United States Census Bureau.

The history and meaning of the name Tadeo was researched and written by our team of onomatology and genealogy experts.

If you have a correction or suggestion to improve the history of Tadeo, please contact us.

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