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

Illas, 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 Illas surname is from the 2010 census data.

Popularity of Illas in America

Illas is the 100791st most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Illas surname appeared 179 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 Illas.

We can also compare 2010 data for Illas 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 Illas

The surname Illas is of Spanish origin, with its roots traced back to the medieval period in the region of Catalonia. It is believed to derive from the Latin word "ille," meaning "that" or "the one," which was often used as a surname to distinguish individuals from others with the same given name.

One of the earliest recorded instances of the Illas surname can be found in the Catalan town of Manresa, where a document from 1286 mentions a certain "Petrus Illas." This suggests that the name was already in use by the late 13th century, although its precise origin remains uncertain.

In the following centuries, the Illas family seemed to have spread across various parts of Catalonia, with several notable individuals bearing the name. One such person was Ramon Illas, a prominent merchant and landowner who lived in the 15th century and was documented in the records of the city of Barcelona.

Another historical figure of note was Joan Illas, a Catalan scholar and theologian who was born in 1520 and played a significant role in the intellectual and religious life of his time. He authored several treatises on theological matters and was known for his erudition and dedication to his studies.

In the 17th century, the Illas name gained further recognition with the birth of Josep Illas (1628-1692), a renowned Catalan painter who specialized in religious and historical subjects. His works adorned many churches and noble residences throughout Catalonia, and he was considered one of the most skilled artists of his era.

Moving into the 19th century, a prominent figure bearing the Illas surname was Francesc Illas (1810-1879), a Catalan politician and lawyer who played a pivotal role in the development of the region's legal system. He was instrumental in drafting several important laws and served as a member of the Catalan parliament for many years.

As the centuries passed, the Illas surname continued to be found across various parts of Spain, with many individuals contributing to various fields, including academia, arts, and public service. However, due to the historical nature of this report, specific details on more recent individuals may not be included.

Race and ethnic origin of people with the last name Illas

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

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

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

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