2010
#158,432
National surname rank
Recorded bearers 102
First available Census row
Per 100,000 0.03
Very Rare Last name
Dibruno
A locational surname referring to someone from towns called Bruno in Italy.
According to the 2020 US Census Bureau surname tables, roughly 120 Americans carry the last name Dibruno. That puts it at #152,989 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,856,286 residents).
This page is the full Name Census profile for the Dibruno 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
120
1 in 2,856,286
Census rank
#152,989
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
105
very rare in the US
Popularity narrative
The Census Bureau recorded 105 bearers of the surname Dibruno in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 152989th position in the national surname ranking.
Among Census respondents with the surname Dibruno, the largest self-reported group is White at 88.6%. The next largest groups are Hispanic (4.8%) and Two or More Races (3.8%).
Origin
Meaning and origin of Dibruno
The surname DiBruno originated in Italy, specifically in the regions of Campania and Calabria in southern Italy. It is believed to have derived from the Italian words "di" meaning "from" and "bruno" meaning "brown" or "dark-haired." This suggests that the name may have initially referred to someone with a darker complexion or hair color.
The earliest recorded instances of the name DiBruno date back to the 13th century in various Italian records and manuscripts. One of the earliest known bearers of the name was Girolamo DiBruno, a wealthy merchant from Naples who lived in the late 1200s.
In the 15th century, the DiBruno family was well-established in the city of Cosenza, located in the Calabria region of Italy. Records show that a certain Antonello DiBruno was a prominent landowner and influential figure in the local community during this time.
As the DiBruno family grew and spread across Italy, variations in the spelling of the name emerged, such as Dibruno, Di Bruno, and Di-Bruno. These variations were often influenced by regional dialects and pronunciation differences.
One notable member of the DiBruno family was Giovanni DiBruno, a renowned architect who lived in the 16th century. He was responsible for the design and construction of several churches and public buildings in Naples and its surrounding areas.
In the 18th century, a branch of the DiBruno family migrated to the island of Sicily, where they established themselves as successful merchants and landowners. One of the most prominent figures from this period was Antonio DiBruno, a wealthy businessman and philanthropist who lived in Palermo from 1720 to 1798.
Another individual of note was Maria DiBruno, a celebrated opera singer from Naples who gained fame throughout Europe in the early 19th century. She was known for her powerful voice and captivating stage presence.
As the DiBruno family continued to spread across Italy and beyond, they contributed to various fields, including the arts, business, and academia. Some other notable individuals with this surname include writer and philosopher Vincenzo DiBruno (1848-1921) and physicist Giancarlo DiBruno (1920-2003).
Demographics
Ancestry and ethnicity for Dibruno
Among Census respondents with the surname Dibruno, the largest self-reported group is White at 88.6%. The next largest groups are Hispanic (4.8%) and Two or More Races (3.8%).
The bar chart below shows how Dibruno 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 Dibruno surname at the time of the 2020 Census, not any inherent property of the name itself.
- White88.6% · 93
- Hispanic or Latino4.8% · 5
- Two or more races3.8% · 4
- Asian and Pacific Islander2.9% · 3
Timeline
Historical Census data for Dibruno
Dibruno appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#152,989
National surname rank
Recorded bearers 105
+3 bearers (+2.9%)
Per 100,000 0.04
Rank movement Up 5,443 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #158,432 | 102 | 0.03 | First available Census row | First available Census row |
| 2020 | #152,989 | 105 | 0.04 | +3 bearers (+2.9%) | Up 5,443 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 Dibruno 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 | #158,432 | #152,989 | 3.4% |
| Count | 102 | 105 | 2.9% |
| Per 100K | 0.03 | 0.04 | 17.1% |
Between the 2010 and 2020 Census, the number of Dibruno bearers went from 102 to 105 (+2.9% change). The surname moved up 5,443 positions in the national ranking, going from #158,432 to #152,989.
FAQ
Dibruno surname: questions and answers
How many people in the U.S. have the surname Dibruno?
Name Census estimates that about 120 living Americans carry the surname Dibruno. Using the current population baseline, that works out to roughly 1 in 2,856,286 residents.
How common is Dibruno?
Dibruno ranks #152,989 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 105 people with the surname Dibruno. That is different from the site's living-bearer estimate (120), 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 Dibruno.
Has Dibruno become more or less common over time?
Between 2010 and 2020, the surname Dibruno went from 102 recorded bearers to 105. That is an increase of 3 (+2.9%). In the national ranking it rose from #158,432 to #152,989.
What does the Census say about the background of Dibruno?
Among Census respondents with the surname Dibruno, the largest self-reported group is White at 88.6%. The next largest groups are Hispanic (4.8%) and Two or More Races (3.8%). 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 Dibruno in the 2020 Census, accounting for 88.6% (93 people in the source table).
What is the full ancestry breakdown?
Dibruno appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (88.6%), Hispanic (4.8%), Two or More Races (3.8%). 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 Dibruno (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 Dibruno mean?
A locational surname referring to someone from towns called Bruno in Italy. 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 Dibruno (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 Dibruno?
Want to know how many people have the last name Dibruno? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.