Cillo last name popularity, history, and meaning

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

Meaning of Cillo

An Italian surname derived from the medieval masculine name Cillone, likely diminutive form of Sicilian Roman name Cillus.

Cillo, 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 Cillo surname is from the 2010 census data.

Popularity of Cillo in America

Cillo is the 36900th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Cillo surname appeared 605 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 Cillo.

We can also compare 2010 data for Cillo 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.

2010 2000 Change (%)
Rank 36900 34399 7.02%
Count 605 623 -2.93%
Proportion per 100k 0.21 0.23 -9.09%

The history of the last name Cillo

The surname CILLO originated in Italy during the medieval period. It is believed to have derived from the Latin word "cillus," meaning "a small horse" or "pony." This suggests that the name may have initially referred to someone who worked with or owned small horses.

One of the earliest recorded instances of the CILLO surname can be found in the Codex Diplomaticus Cavensis, a collection of medieval documents from the Campania region of southern Italy, dated around the 11th century. This indicates that the name was present in this region during that time.

In the 13th century, a notable figure named Giovanni Cillo was mentioned in the annals of the city of Salerno, located in the same region of Campania. He was a local nobleman and landowner, suggesting that the CILLO family had achieved a certain level of prominence by that point.

Another historical reference comes from the 14th century, when a friar named Niccolò Cillo was recorded as a member of the Dominican order in Naples. This further establishes the presence of the CILLO surname in southern Italy during the Middle Ages.

Moving forward to the 15th century, a notable individual named Antonio Cillo was a renowned painter and architect from the city of Siena in Tuscany. His works can still be found in various churches and buildings throughout the region, demonstrating the artistic talents of those bearing the CILLO name.

In the 16th century, a scholar and humanist named Girolamo Cillo gained recognition for his writings on philosophy and literature. He was born in the town of Nola, near Naples, and his works were widely circulated throughout Italy during the Renaissance period.

As the centuries progressed, the CILLO surname continued to spread across various regions of Italy, with families bearing this name settling in various cities and towns. While not as numerous as some other Italian surnames, the CILLO name has maintained a presence throughout the country's history.

Race and ethnic origin of people with the last name Cillo

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

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 Cillo was:

Race/Ethnicity Percentage Total Occurrences
Non-Hispanic White Only 92.89% 562
Non-Hispanic Black Only (S)% (S)
Non-Hispanic Asian and Pacific Islander Only 2.15% 13
Non-Hispanic American Indian and Alaskan Native (S)% (S)
Non-Hispanic of Two or More Races 2.31% 14
Hispanic Origin 1.98% 12

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 Cillo has changed in the 10 years between the two census surveys.

2010 2000 Change (%)
White 92.89% 95.35% -2.61%
Black (S)% 0.00% (S)%
Asian and Pacific Islander 2.15% 1.77% 19.39%
American Indian and Alaskan Native (S)% 0.00% (S)%
Two or More Races 2.31% 0.96% 82.57%
Hispanic 1.98% 1.93% 2.56%

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

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

Reference this page

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"Cillo last name popularity, history, and meaning". NameCensus.com. Accessed on June 21, 2025. http://namecensus.com/last-names/cillo-surname-popularity/.

"Cillo last name popularity, history, and meaning". NameCensus.com, http://namecensus.com/last-names/cillo-surname-popularity/. Accessed 21 June, 2025

Cillo last name popularity, history, and meaning. NameCensus.com. Retrieved from http://namecensus.com/last-names/cillo-surname-popularity/.

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