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

DeMasi, 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 DeMasi surname is from the 2010 census data.

Popularity of DeMasi in America

DeMasi is the 15303rd most popular name in America based on the data we have collected from the U.S. Census Bureau.

The DeMasi surname appeared 1,918 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 1 people would have the surname DeMasi.

We can also compare 2010 data for DeMasi 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 DeMasi

The surname DEMASI originated in Italy during the Middle Ages. It is believed to have derived from the Italian word "de Masi," which means "from the farmhouses" or "from the rural dwellings." This suggests that the earliest bearers of this name likely lived in or came from rural areas or small villages in Italy.

The name DEMASI can be traced back to various historical records in Italy, particularly in the regions of Campania, Lazio, and Sicily. Some of the earliest mentions of the name can be found in medieval documents, such as land registries and census records from the 13th and 14th centuries.

One notable historical figure with the surname DEMASI was Francesco De Masi, a renowned Italian architect who lived in the late 16th and early 17th centuries. He was responsible for designing several notable buildings in Naples, including the Church of San Gregorio Armeno and the Palazzo Doria d'Angri.

Another prominent figure was Tommaso De Masi, a 17th-century Italian painter from Naples. He was known for his religious works and was commissioned to create several altarpieces for churches in Naples and the surrounding areas.

In the 18th century, Gennaro De Masi was a notable Italian composer and music theorist. He wrote several operas and was also known for his contributions to the development of musical notation and theory.

During the 19th century, Giuseppe De Masi was a renowned Italian politician and lawyer. He served as a member of the Italian Parliament and was involved in the unification of Italy under the House of Savoy.

Another notable figure with the surname DEMASI was Antonio De Masi, an Italian philosopher and scholar who lived in the early 20th century. He was known for his work on the philosophy of science and was a professor at the University of Naples.

The name DEMASI has also appeared in various place names throughout Italy, such as the town of Masi Torello in the province of Ferrara, and the village of Masi di Palaia in the province of Pisa. These place names may have influenced the spelling variations of the surname over time.

Race and ethnic origin of people with the last name DeMasi

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

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

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

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