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

Siordia, 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 Siordia surname is from the 2010 census data.

Popularity of Siordia in America

Siordia is the 21092nd most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Siordia surname appeared 1,245 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 Siordia.

We can also compare 2010 data for Siordia 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 Siordia

The surname Siordia has its roots in the Basque region of northern Spain and southern France, dating back to the 11th century. It is believed to be derived from the Basque word "siorda," meaning "cultivated land" or "farmland." This suggests that the name may have originated as a descriptive surname for someone who lived or worked on a farm or agricultural land.

The earliest recorded instances of the name Siordia can be found in medieval Basque records and documents from the 12th and 13th centuries. One notable mention is in the Cartulario de San Millán de la Cogolla, a collection of documents from the Monastery of San Millán de la Cogolla in La Rioja, Spain, which references a person named "Siordia de Alesanco" in the year 1220.

During the 15th and 16th centuries, the Siordia name spread beyond the Basque region as a result of migration and the expansion of Spanish influence. Records from this era show various spellings, such as "Siordi," "Siorda," and "Siurdia," reflecting regional variations in pronunciation and spelling.

One of the earliest known bearers of the name was Juan de Siordia, a Basque soldier who fought alongside the Spanish conquistador Hernán Cortés during the conquest of Mexico in the early 16th century. Another notable individual was Pedro de Siordia, a Basque explorer and navigator who accompanied Juan Sebastián Elcano on the famous Magellan-Elcano expedition, which completed the first circumnavigation of the globe in 1522.

In the 17th century, the Siordia name gained prominence in the Spanish colonies of the Americas. Francisco de Siordia, born in 1620 in Bilbao, Spain, was a prominent landowner and rancher in New Spain (present-day Mexico). His son, Tomás de Siordia, born in 1655, inherited his father's estates and became a respected figure in the colonial society of New Spain.

Another notable bearer of the Siordia name was María Josefa de Siordia, born in 1735 in Pamplona, Spain. She was a influential figure in the Spanish court and served as a lady-in-waiting to Queen Maria Luisa of Spain in the late 18th century.

Race and ethnic origin of people with the last name Siordia

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

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

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

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