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

Ruiz Díaz, 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 Ruiz Díaz surname is from the 2010 census data.

Popularity of Ruiz Díaz in America

Ruiz Díaz is the 63524th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Ruiz Díaz surname appeared 314 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 people would have the surname Ruiz Díaz.

We can also compare 2010 data for Ruiz Díaz 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 Ruiz Díaz

The surname RUIZDIAZ is of Spanish origin, with roots tracing back to the Middle Ages. It is a compound name formed by the combination of two distinct family names: Ruiz and Diaz.

The first component, Ruiz, is a patronymic name derived from the given name Ruy, which was a common name among the Visigoths and later adopted by the Spanish. It is believed to have originated from the Germanic name Hrodric or Roderic, meaning "famous ruler."

The second component, Diaz, is also a patronymic name derived from the given name Dia or Diego, which itself is a Spanish form of the name James. Diaz translates to "son of Diego" or "son of James."

One of the earliest recorded instances of the RUIZDIAZ surname can be found in the Becerro de las Behetrías de Castilla, a medieval census document from the 14th century. This document mentions several individuals bearing the name, indicating its presence in the region of Castile during that time period.

Throughout history, there have been notable individuals who carried the RUIZDIAZ surname. One such figure was Juan Ruizdiaz, a Spanish explorer and conquistador who participated in the conquest of the Americas in the 16th century. He was born in Seville, Spain, around 1490 and accompanied Hernán Cortés on his expeditions to Mexico.

Another prominent bearer of the RUIZDIAZ surname was Pedro Ruizdiaz, a Spanish architect and engineer who lived in the late 16th and early 17th centuries. He was responsible for the design and construction of several notable buildings in Spain, including the Monastery of San Lorenzo de El Escorial near Madrid.

In the 18th century, Francisco Ruizdiaz was a renowned Spanish painter known for his religious works and portraits. He was born in Seville in 1710 and produced numerous paintings for churches and private patrons throughout Andalusia.

Moving into the 19th century, Mariano Ruizdiaz was a Spanish military officer and politician who played a role in the Peninsular War against the French invasion. He was born in Madrid in 1784 and served as a general in the Spanish Army during the Napoleonic Wars.

Lastly, Emilio Ruizdiaz was a prominent Spanish writer and journalist born in Barcelona in 1892. He was a prolific author, publishing several novels, short stories, and articles throughout his career, and was known for his contributions to the literary movement of the Generation of '98.

Race and ethnic origin of people with the last name Ruiz Díaz

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

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 Ruiz Díaz 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 Ruiz Díaz 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 Ruiz Díaz was researched and written by our team of onomatology and genealogy experts.

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

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