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

Ilarraza, 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 Ilarraza surname is from the 2010 census data.

Popularity of Ilarraza in America

Ilarraza is the 60196th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Ilarraza surname appeared 335 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 Ilarraza.

We can also compare 2010 data for Ilarraza 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 Ilarraza

The surname Ilarraza is of Basque origin, hailing from the northern regions of Spain and southwestern France. It is believed to have originated in the 12th or 13th century, a time when surnames were becoming more prevalent in Europe. The name Ilarraza is derived from two Basque words, "ilar" meaning "field" and "aza" meaning "new," suggesting a connection to new or recently cultivated fields.

One of the earliest recorded references to the Ilarraza surname can be found in a medieval document from the Spanish region of Navarre, where a landowner named Juan de Ilarraza was mentioned in relation to a property dispute in the year 1387. This suggests that the name was already well-established in the region at that time.

In the 16th century, a prominent figure named Martín Ilarraza was a respected lawyer and adviser to the Spanish monarchy during the reign of King Philip II. His influence and reputation likely contributed to the further spread and recognition of the Ilarraza name.

Another notable individual with this surname was Pedro Ilarraza, a Basque explorer and navigator who was part of the Spanish expeditions to the Americas in the late 15th century. He is believed to have accompanied Christopher Columbus on one of his voyages across the Atlantic Ocean.

During the 17th century, a small village named Ilarraza existed in the Basque region of northern Spain, near the town of Vitoria-Gasteiz. This may have been the original place from which the surname derived or was closely associated with the family bearing this name.

In more recent history, Miguel Ilarraza (1818-1892) was a prominent Basque writer and poet who helped preserve and promote the Basque language and culture through his literary works. His contributions were significant in maintaining the cultural heritage of the Basque people.

Throughout its history, the Ilarraza surname has been found in various spellings, including Illaraza, Ilaraza, and Illaraza, reflecting the regional variations and linguistic adaptations over time. However, the core elements of the name have remained relatively consistent, preserving its Basque origins and connection to the land and agriculture.

Race and ethnic origin of people with the last name Ilarraza

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

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

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

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