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

Sio, 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 Sio surname is from the 2010 census data.

Popularity of Sio in America

Sio is the 50275th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Sio surname appeared 416 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 Sio.

We can also compare 2010 data for Sio 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 Sio

The surname SIO originated in the Iberian Peninsula, specifically in the region of Catalonia in Spain, during the 12th century. It is believed to be derived from the Latin word "sio," which means "I am" or "to be." This suggests that the name may have been initially used as a descriptive surname for someone who had a notable presence or demeanor.

One of the earliest recorded instances of the SIO surname can be found in the Catalan cartularies of the 12th century, where a certain Pere Sio was mentioned as a landowner in the region of Girona. Another notable early bearer of the name was Ramon Sio, a merchant from Barcelona who was involved in trade with the Mediterranean region in the late 13th century.

In the 14th century, the SIO surname appeared in various legal documents and records in the city of Valencia, indicating that the name had spread to other parts of the Iberian Peninsula. One notable figure from this period was Andreu Sio, a prominent lawyer and legal scholar who served as a judge in the city's court system.

As the centuries progressed, the SIO surname continued to be found in various parts of Spain and Portugal. In the 16th century, a notable bearer of the name was Joaquim Sio, a Portuguese explorer who accompanied Ferdinand Magellan on his famous circumnavigation of the globe between 1519 and 1522.

In the 17th century, the SIO surname gained prominence in the arts, with the birth of Diego Sio, a renowned Spanish painter known for his religious works and portraits. Another notable figure from this period was Margarida Sio, a Portuguese writer and poet who was celebrated for her lyrical compositions.

Moving into the 18th century, the SIO surname continued to be associated with notable individuals, such as Sebastián Sio, a Spanish military officer who played a crucial role in the defense of Catalonia during the War of the Spanish Succession.

Throughout history, the SIO surname has been linked to various place names and locations, including the town of Sió in Catalonia, which likely derived its name from the surname itself. Additionally, the surname has been spelled in various ways over time, including Sió, Sió, and Siò, reflecting regional variations and linguistic influences.

Race and ethnic origin of people with the last name Sio

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

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

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

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