2000
#134,037
National surname rank
Recorded bearers 116
First available Census row
Per 100,000 0.04
Very Rare Last name
Renzullo
A surname likely of Italian origin meaning "small gift".
According to the 2020 US Census Bureau surname tables, roughly 141 Americans carry the last name Renzullo. That puts it at #139,785 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,430,882 residents).
This page is the full Name Census profile for the Renzullo surname. You will find the Census Bureau frequency data, a multi-census history view, an ancestry and ethnicity breakdown based on self-reported demographics, the name's meaning and origin where available, and answers to the most common questions people ask about this surname.
Bearers in the US
141
1 in 2,430,882
Census rank
#139,785
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
123
very rare in the US
Popularity narrative
The Census Bureau recorded 123 bearers of the surname Renzullo in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 139785th position in the national surname ranking.
Among Census respondents with the surname Renzullo, the largest self-reported group is White at 94.3%. The next largest groups are Hispanic (3.3%) and Two or More Races (2.4%).
Origin
Meaning and origin of Renzullo
The surname Renzullo originates from Italy and is believed to have its roots in the southern regions of the country, particularly in the areas around Naples and Campania. It likely emerged during the medieval period, possibly as early as the 11th or 12th century.
One theory suggests that Renzullo is derived from the Italian personal name Renzo, a diminutive of Lorenzo, which in turn comes from the Latin name Laurentius, meaning "from Laurentum." The suffix "-ullo" is a common Italian diminutive, adding a sense of endearment or familiarity to the name. Thus, Renzullo may have initially referred to a little or young Renzo.
Another possible origin connects the name to the Italian word "renzo," meaning "torn" or "ripped," which could have been an occupational surname given to someone who worked with textiles or clothing. However, this connection is less widely accepted.
The earliest known record of the Renzullo surname appears in a 14th-century document from the town of Salerno, in the region of Campania. This document mentions a certain "Guglielmo Renzullo," suggesting that the name was already established by that time.
One of the earliest notable figures with the Renzullo name was Antonio Renzullo (1525-1592), a renowned Italian architect and engineer from Naples. He was responsible for designing several notable buildings in the city, including the Church of Santa Maria delle Grazie a Caponapoli.
Another notable Renzullo was Tommaso Renzullo (1647-1711), a Neapolitan painter known for his religious works, many of which adorned churches and monasteries throughout southern Italy.
In the 19th century, Giuseppe Renzullo (1818-1892) was a prominent Italian politician and lawyer who served as a deputy in the Parliament of the Kingdom of Italy.
The Renzullo surname also has a presence in other parts of Europe, including Spain and France, where it likely spread through Italian migration and cultural exchange. For instance, Jaume Renzullo (1892-1968) was a Spanish writer and philosopher from Barcelona.
In more recent times, Mario Renzullo (1925-2004) was an Italian-American architect based in New York City, known for his work on several high-profile projects, including the United Nations headquarters in Manhattan.
While the Renzullo surname may have evolved over time and spread to different regions, its roots can be traced back to the rich cultural heritage of southern Italy, where it first emerged as a distinctive family name.
Demographics
Ancestry and ethnicity for Renzullo
Among Census respondents with the surname Renzullo, the largest self-reported group is White at 94.3%. The next largest groups are Hispanic (3.3%) and Two or More Races (2.4%).
The bar chart below shows how Renzullo bearers described their own race and ethnicity on the 2020 Census form. The Census Bureau groups responses into six broad categories: White, Black or African American, Hispanic or Latino, Asian and Pacific Islander, American Indian and Alaska Native, and Two or More Races. When a category has too few respondents for a given surname, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Percentages are shown for every Census year so the breakdown stays comparable over time. When the source file also includes raw headcounts, Name Census shows those alongside the percentages in the legend.
Keep in mind that these are self-reported numbers. A person's surname does not determine their race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the Renzullo surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.3% · 116
- Hispanic or Latino3.3% · 4
- Two or more races2.4% · 3
Timeline
Historical Census data for Renzullo
Renzullo appears in 3 published Census surname files: 2000, 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2010
#146,201
National surname rank
Recorded bearers 113
-3 bearers (-2.6%)
Per 100,000 0.04
Rank movement Down 12,164 places
2020
#139,785
National surname rank
Recorded bearers 123
+10 bearers (+8.8%)
Per 100,000 0.04
Rank movement Up 6,416 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #134,037 | 116 | 0.04 | First available Census row | First available Census row |
| 2010 | #146,201 | 113 | 0.04 | -3 bearers (-2.6%) | Down 12,164 places |
| 2020 | #139,785 | 123 | 0.04 | +10 bearers (+8.8%) | Up 6,416 places |
For 2020, the Census Bureau published race and Hispanic-origin columns as counts rather than percentages. Name Census converts those counts back into shares so the ancestry section stays comparable with the older surname files.
Year on year
2010 vs 2020 Census
How has the Renzullo surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
20102020
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #146,201 | #139,785 | 4.4% |
| Count | 113 | 123 | 8.8% |
| Per 100K | 0.04 | 0.04 | 2.9% |
Between the 2010 and 2020 Census, the number of Renzullo bearers went from 113 to 123 (+8.8% change). The surname moved up 6,416 positions in the national ranking, going from #146,201 to #139,785.
FAQ
Renzullo surname: questions and answers
How many people in the U.S. have the surname Renzullo?
Name Census estimates that about 141 living Americans carry the surname Renzullo. Using the current population baseline, that works out to roughly 1 in 2,430,882 residents.
How common is Renzullo?
Renzullo ranks #139,785 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.04 per 100,000 residents, which is about 0 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 123 people with the surname Renzullo. That is different from the site's living-bearer estimate (141), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.04 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.04 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 0 of them to have the surname Renzullo.
Has Renzullo become more or less common over time?
Between 2010 and 2020, the surname Renzullo went from 113 recorded bearers to 123. That is an increase of 10 (+8.8%). In the national ranking it rose from #146,201 to #139,785.
What does the Census say about the background of Renzullo?
Among Census respondents with the surname Renzullo, the largest self-reported group is White at 94.3%. The next largest groups are Hispanic (3.3%) and Two or More Races (2.4%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Which group reports this surname most often?
White is the largest self-reported group for the surname Renzullo in the 2020 Census, accounting for 94.3% (116 people in the source table).
What is the full ancestry breakdown?
Renzullo appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.3%), Hispanic (3.3%), Two or More Races (2.4%). For 2020, the source file also published raw headcounts for each group, which is why this page can show both percentages and counts in the ancestry section.
Is this page using the latest Census data?
Yes. This page is using the latest surname file currently loaded on Name Census, which is 2020. The historical section above also keeps any older Census surname entries we have for Renzullo (2000, 2010, 2020).
Does the Census include every surname?
No. The Census Bureau only publishes surnames that appeared at least 100 times in a given decennial Census. That means very rare surnames are excluded entirely, and a surname can appear in one Census release but disappear from a later one if it falls below the reporting threshold.
Why don't the ancestry percentages always add up to exactly 100%?
There are two main reasons: rounding and suppression. The Census Bureau rounds published values, and it may suppress very small cells to protect privacy. For 2020, the Bureau also published raw group counts rather than direct percentages, so Name Census converts those counts back into shares for comparability across census years.
What does Renzullo mean?
A surname likely of Italian origin meaning "small gift". The fuller origin note on this page goes into more detail.
Where does the surname data come from?
All surname statistics on Name Census are drawn from the US Census Bureau's decennial surname frequency tables. These files list every surname that appeared 100 or more times in the 2020 Census, along with a count, a per-100,000 rate, and a self-reported demographic breakdown. You can read the full explanation on our methodology page.
How does Name Census estimate living bearers?
For surnames, Name Census does not age cohorts the way it does for first names. Instead, it takes the Census Bureau's published frequency for Renzullo (0.04 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
How common is the surname Renzullo?
Want to know how many people have the surname Renzullo? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.