2000
#147,095
National surname rank
Recorded bearers 103
First available Census row
Per 100,000 0.04
Very Rare Last name
Delbonis
A surname stemming from the Italian phrase "del bonis" meaning "of good things".
According to the 2020 US Census Bureau surname tables, roughly 126 Americans carry the last name Delbonis. That puts it at #149,446 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,720,273 residents).
This page is the full Name Census profile for the Delbonis 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
126
1 in 2,720,273
Census rank
#149,446
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
110
very rare in the US
Popularity narrative
The Census Bureau recorded 110 bearers of the surname Delbonis in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 149446th position in the national surname ranking.
Among Census respondents with the surname Delbonis, the largest self-reported group is White at 98.2%. The next largest groups are Black (0.9%) and Asian/Pacific Islander (0.9%).
Origin
Meaning and origin of Delbonis
The surname DELBONIS has its origins in Italy, dating back to the medieval period. It is believed to have derived from a combination of the Italian words "del" meaning "of" or "from" and "bonis" meaning "good" or "virtuous." This suggests that the name may have been given to an individual or family known for their upstanding character or moral qualities.
One of the earliest recorded instances of the name DELBONIS can be found in the historic city of Bologna, located in the northern Italian region of Emilia-Romagna. In the 13th century, a prominent family bearing this surname held significant influence and power in the city's political and social circles.
During the Renaissance period, a notable figure named Girolamo DELBONIS (1492-1567) emerged as a respected scholar and humanist. He was renowned for his mastery of Latin and Greek literature, and his contributions to the field of education earned him recognition throughout Italy.
In the 17th century, a branch of the DELBONIS family settled in the southern region of Calabria. Here, they established themselves as landowners and played a role in the region's agricultural and economic development. One prominent member, Francesco DELBONIS (1624-1698), was a successful merchant and philanthropist who funded the construction of several churches and charitable institutions.
The DELBONIS name also found its way into the arts, with the 18th century painter Antonio DELBONIS (1742-1812) gaining acclaim for his landscapes and portraiture. His works were celebrated for their attention to detail and vibrant use of color, and some of his pieces can still be found in prestigious art galleries throughout Italy.
As the DELBONIS family expanded and migrated across Italy, variations in spelling and regional dialects emerged, leading to variations such as DELBONIS, DELBONISI, and DELBONESE. However, the core meaning and heritage of the name remained rooted in its Italian origins.
Throughout the centuries, the DELBONIS surname has been carried by individuals from diverse backgrounds and professions, each contributing to the rich tapestry of Italian history and culture.
Demographics
Ancestry and ethnicity for Delbonis
Among Census respondents with the surname Delbonis, the largest self-reported group is White at 98.2%. The next largest groups are Black (0.9%) and Asian/Pacific Islander (0.9%).
The bar chart below shows how Delbonis 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 Delbonis surname at the time of the 2020 Census, not any inherent property of the name itself.
- White98.2% · 108
- Black or African American0.9% · 1
- Asian and Pacific Islander0.9% · 1
Timeline
Historical Census data for Delbonis
Delbonis 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
#153,769
National surname rank
Recorded bearers 106
+3 bearers (+2.9%)
Per 100,000 0.04
Rank movement Down 6,674 places
2020
#149,446
National surname rank
Recorded bearers 110
+4 bearers (+3.8%)
Per 100,000 0.04
Rank movement Up 4,323 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #147,095 | 103 | 0.04 | First available Census row | First available Census row |
| 2010 | #153,769 | 106 | 0.04 | +3 bearers (+2.9%) | Down 6,674 places |
| 2020 | #149,446 | 110 | 0.04 | +4 bearers (+3.8%) | Up 4,323 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 Delbonis 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 | #153,769 | #149,446 | 2.8% |
| Count | 106 | 110 | 3.8% |
| Per 100K | 0.04 | 0.04 | -8.0% |
Between the 2010 and 2020 Census, the number of Delbonis bearers went from 106 to 110 (+3.8% change). The surname moved up 4,323 positions in the national ranking, going from #153,769 to #149,446.
FAQ
Delbonis surname: questions and answers
How many people in the U.S. have the surname Delbonis?
Name Census estimates that about 126 living Americans carry the surname Delbonis. Using the current population baseline, that works out to roughly 1 in 2,720,273 residents.
How common is Delbonis?
Delbonis ranks #149,446 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 110 people with the surname Delbonis. That is different from the site's living-bearer estimate (126), 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 Delbonis.
Has Delbonis become more or less common over time?
Between 2010 and 2020, the surname Delbonis went from 106 recorded bearers to 110. That is an increase of 4 (+3.8%). In the national ranking it rose from #153,769 to #149,446.
What does the Census say about the background of Delbonis?
Among Census respondents with the surname Delbonis, the largest self-reported group is White at 98.2%. The next largest groups are Black (0.9%) and Asian/Pacific Islander (0.9%). 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 Delbonis in the 2020 Census, accounting for 98.2% (108 people in the source table).
What is the full ancestry breakdown?
Delbonis appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (98.2%), Black (0.9%), Asian/Pacific Islander (0.9%). 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 Delbonis (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 Delbonis mean?
A surname stemming from the Italian phrase "del bonis" meaning "of good things". 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 Delbonis (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 many Americans have the surname Delbonis?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.