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

Iorizzo, 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 Iorizzo surname is from the 2010 census data.

Popularity of Iorizzo in America

Iorizzo is the 127494th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Iorizzo surname appeared 134 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 Iorizzo.

We can also compare 2010 data for Iorizzo 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 Iorizzo

The surname Iorizzo originated in Italy, specifically in the southern regions of Campania and Basilicata. Its roots can be traced back to the medieval period, around the 11th or 12th century. The name is believed to have derived from the Latin word "iorus," meaning "yore" or "ancient times," possibly indicating an ancestral lineage tracing back to ancient Roman times.

One of the earliest recorded instances of the surname Iorizzo can be found in the Codex Diplomaticus Cavensis, a collection of medieval documents from the Montevergine Abbey in Campania. This manuscript, dating back to the 12th century, mentions a certain "Petrus Iorizzo" who was a landowner in the region.

In the 15th century, the name Iorizzo appears in the archives of the Kingdom of Naples, where a nobleman named Giovanni Iorizzo is recorded as having received a land grant from King Alfonso V of Aragon in 1442. This suggests that the Iorizzo family had attained a certain level of prominence and wealth during that period.

Notables bearing the surname Iorizzo throughout history include Francesco Iorizzo (1555-1623), a renowned jurist and legal scholar from Naples who authored several treatises on civil law. Another notable figure was Giulio Iorizzo (1680-1748), a Baroque painter from Potenza, whose works can be found in various churches and galleries across southern Italy.

In the 19th century, Vincenzo Iorizzo (1818-1892) was a prominent politician and journalist from Campania, known for his advocacy of Italian unification and his role in the Risorgimento movement. He served as a deputy in the Parliament of the Kingdom of Italy after the country's unification in 1861.

More recently, Nicola Iorizzo (1920-2009) was an Italian-American mathematician and professor at the University of Illinois at Chicago, renowned for his contributions to the field of functional analysis and his research on partial differential equations.

Throughout its history, the surname Iorizzo has maintained a strong presence in the southern Italian regions of Campania and Basilicata, although it has also been found in other parts of Italy and among Italian immigrant communities abroad.

Race and ethnic origin of people with the last name Iorizzo

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

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

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

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