2000
#133,114
National surname rank
Recorded bearers 117
First available Census row
Per 100,000 0.04
Very Rare Last name
Dezenzo
A surname of Italian origin meaning "from Zenzo" or "son of Zenzo."
According to the 2020 US Census Bureau surname tables, roughly 123 Americans carry the last name Dezenzo. That puts it at #151,639 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,786,621 residents).
This page is the full Name Census profile for the Dezenzo 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
123
1 in 2,786,621
Census rank
#151,639
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
107
very rare in the US
Popularity narrative
The Census Bureau recorded 107 bearers of the surname Dezenzo in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 151639th position in the national surname ranking.
Among Census respondents with the surname Dezenzo, the largest self-reported group is White at 92.5%. The next largest groups are Two or More Races (4.7%) and Hispanic (1.9%).
Origin
Meaning and origin of Dezenzo
The surname DEZENZO is of Italian origin, tracing its roots back to the regions of southern Italy, particularly Campania and Calabria. It is believed to have derived from the Italian phrase "di Zenzo," meaning "son of Zenzo," with Zenzo being a diminutive form of the name Vincenzo.
The earliest known record of the DEZENZO surname dates back to the 15th century in the historical records of the Kingdom of Naples. One notable mention is found in a land ownership document from the year 1472, which refers to a certain Nicola DEZENZO, a landowner in the town of Salerno.
During the late 16th century, the DEZENZO name appeared in the records of the Archdiocese of Amalfi, where a priest named Giovanni DEZENZO served as a parish vicar in the coastal town of Maiori from 1587 to 1612.
In the early 17th century, a family of DEZENZO artisans gained recognition for their skilled craftsmanship in the production of maiolica pottery in the city of Vietri sul Mare. One of the most renowned members of this family was Luca DEZENZO, a master potter who lived from 1598 to 1672.
Another notable figure bearing the DEZENZO surname was Antonio DEZENZO, a military officer who fought in the Napoleonic Wars. Born in 1778 in the town of Cava de' Tirreni, he served as a captain in the Neapolitan army and participated in several battles against the French forces.
In the late 19th century, the DEZENZO name gained prominence in the field of medicine. Raffaele DEZENZO, born in 1846 in Naples, was a renowned physician and professor of anatomy at the University of Naples. His contributions to medical research and education earned him widespread recognition in the scientific community.
As the Italian diaspora spread across the globe, the DEZENZO surname found its way to various parts of the world, particularly in North and South America, where many Italian immigrants settled in search of new opportunities.
While these are just a few examples, the DEZENZO surname has a rich history rooted in the cultural tapestry of southern Italy, with its bearers making significant contributions across various fields throughout the centuries.
Demographics
Ancestry and ethnicity for Dezenzo
Among Census respondents with the surname Dezenzo, the largest self-reported group is White at 92.5%. The next largest groups are Two or More Races (4.7%) and Hispanic (1.9%).
The bar chart below shows how Dezenzo 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 Dezenzo surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.5% · 99
- Two or more races4.7% · 5
- Hispanic or Latino1.9% · 2
- Asian and Pacific Islander0.9% · 1
Timeline
Historical Census data for Dezenzo
Dezenzo 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
#143,149
National surname rank
Recorded bearers 116
-1 bearers (-0.9%)
Per 100,000 0.04
Rank movement Down 10,035 places
2020
#151,639
National surname rank
Recorded bearers 107
-9 bearers (-7.8%)
Per 100,000 0.04
Rank movement Down 8,490 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #133,114 | 117 | 0.04 | First available Census row | First available Census row |
| 2010 | #143,149 | 116 | 0.04 | -1 bearers (-0.9%) | Down 10,035 places |
| 2020 | #151,639 | 107 | 0.04 | -9 bearers (-7.8%) | Down 8,490 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 Dezenzo 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 | #143,149 | #151,639 | -5.9% |
| Count | 116 | 107 | -7.8% |
| Per 100K | 0.04 | 0.04 | -10.5% |
Between the 2010 and 2020 Census, the number of Dezenzo bearers went from 116 to 107 (-7.8% change). The surname moved down 8,490 positions in the national ranking, going from #143,149 to #151,639.
FAQ
Dezenzo surname: questions and answers
How many people in the U.S. have the surname Dezenzo?
Name Census estimates that about 123 living Americans carry the surname Dezenzo. Using the current population baseline, that works out to roughly 1 in 2,786,621 residents.
How common is Dezenzo?
Dezenzo ranks #151,639 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 107 people with the surname Dezenzo. That is different from the site's living-bearer estimate (123), 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 Dezenzo.
Has Dezenzo become more or less common over time?
Between 2010 and 2020, the surname Dezenzo went from 116 recorded bearers to 107. That is a decrease of 9 (-7.8%). In the national ranking it fell from #143,149 to #151,639.
What does the Census say about the background of Dezenzo?
Among Census respondents with the surname Dezenzo, the largest self-reported group is White at 92.5%. The next largest groups are Two or More Races (4.7%) and Hispanic (1.9%). 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 Dezenzo in the 2020 Census, accounting for 92.5% (99 people in the source table).
What is the full ancestry breakdown?
Dezenzo appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.5%), Two or More Races (4.7%), Hispanic (1.9%). 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 Dezenzo (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 Dezenzo mean?
A surname of Italian origin meaning "from Zenzo" or "son of Zenzo." 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 Dezenzo (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 Dezenzo?
If you just want to know how many people have the surname Dezenzo, HowManyOfMe.org gives you the headline number in one glance.