2000
#7,396
National surname rank
Recorded bearers 4,154
First available Census row
Per 100,000 1.54
Rare Last name
Dambrosio
From the Italian surname D'Ambrosio, referring to a person from the town of Ambrosia or a descendant of Ambrose.
According to the 2020 US Census Bureau surname tables, roughly 4,739 Americans carry the last name Dambrosio. That puts it at #7,721 in the national surname ranking, appearing at a frequency of 1.38 per 100,000 people (about 1 in 72,326 residents).
This page is the full Name Census profile for the Dambrosio 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.
For British records, Name Census UK has a British surname profile for Dambrosio with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
4.7K
1 in 72,326
Census rank
#7,721
2020 decennial data
Per 100,000
1.4
Frequency rate
Recorded bearers
4.1K
rare in the US
Popularity narrative
The Census Bureau recorded 4,133 bearers of the surname Dambrosio in its 2020 decennial surname file. At a rate of 1.38 per 100,000 residents, it holds the 7721st position in the national surname ranking.
Among Census respondents with the surname Dambrosio, the largest self-reported group is White at 91.8%. The next largest groups are Hispanic (4.6%) and Two or More Races (2.5%).
Origin
Meaning and origin of Dambrosio
The surname DAMBROSIO has its origins in Italy, specifically in the southern regions of Campania and Apulia. It is believed to have emerged in the late medieval period, around the 14th or 15th century.
The name DAMBROSIO is derived from the Italian phrase "d'Ambrosio," which translates to "of Ambrose." This suggests a connection to the name Ambrose, a name with Latin roots that means "immortal" or "divine." It was a common name among early Christian saints, including Saint Ambrose, the patron saint of Milan.
One of the earliest recorded instances of the name DAMBROSIO can be found in the Codex Diplomaticus Cavensis, a collection of medieval documents from the Monastery of Cava dei Tirreni in Campania, dating back to the 11th century. However, the name appears to have been more prevalent in later centuries.
In the late 16th century, a notable figure bearing the name DAMBROSIO was Giacomo d'Ambrosio, a philosopher and jurist from Naples who wrote extensively on legal and political theory. He was born in 1551 and died in 1616.
Another prominent individual with this surname was Giulio Cesare d'Ambrosio, an Italian painter from the Baroque period who was active in the late 16th and early 17th centuries. He was born in Naples around 1570 and is known for his religious paintings and frescoes.
During the 18th century, Raffaele d'Ambrosio (1717-1773) was a celebrated Italian architect and engineer who designed several notable buildings in Naples, including the Church of Santa Maria della Neve and the Palazzo Calabritto.
In the 19th century, Achille d'Ambrosio (1828-1893) was a prominent Italian lawyer and politician who served as a member of the Italian Parliament and held various ministerial positions in the government.
Another notable figure was Francesco d'Ambrosio (1857-1932), an Italian painter and sculptor who was born in Naples and is known for his religious and mythological works.
While the surname DAMBROSIO has its roots in southern Italy, it has spread to other regions and countries over time due to migration and diaspora. However, its origins can be traced back to the medieval period in the Campania and Apulia regions of Italy, where it was likely derived from the name Ambrose and its Latin roots.
Demographics
Ancestry and ethnicity for Dambrosio
Among Census respondents with the surname Dambrosio, the largest self-reported group is White at 91.8%. The next largest groups are Hispanic (4.6%) and Two or More Races (2.5%).
The bar chart below shows how Dambrosio 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 Dambrosio surname at the time of the 2020 Census, not any inherent property of the name itself.
- White91.8% · 3,796
- Hispanic or Latino4.6% · 192
- Two or more races2.5% · 103
- Asian and Pacific Islander0.6% · 25
- Black or African American0.3% · 14
- American Indian and Alaska Native0.1% · 3
Timeline
Historical Census data for Dambrosio
Dambrosio 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
#7,763
National surname rank
Recorded bearers 4,275
+121 bearers (+2.9%)
Per 100,000 1.45
Rank movement Down 367 places
2020
#7,721
National surname rank
Recorded bearers 4,133
-142 bearers (-3.3%)
Per 100,000 1.38
Rank movement Up 42 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #7,396 | 4,154 | 1.54 | First available Census row | First available Census row |
| 2010 | #7,763 | 4,275 | 1.45 | +121 bearers (+2.9%) | Down 367 places |
| 2020 | #7,721 | 4,133 | 1.38 | -142 bearers (-3.3%) | Up 42 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 Dambrosio 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 | #7,763 | #7,721 | 0.5% |
| Count | 4,275 | 4,133 | -3.3% |
| Per 100K | 1.45 | 1.38 | -4.6% |
Between the 2010 and 2020 Census, the number of Dambrosio bearers went from 4,275 to 4,133 (-3.3% change). The surname moved up 42 positions in the national ranking, going from #7,763 to #7,721.
FAQ
Dambrosio surname: questions and answers
How many people in the U.S. have the surname Dambrosio?
Name Census estimates that about 4,739 living Americans carry the surname Dambrosio. Using the current population baseline, that works out to roughly 1 in 72,326 residents.
How common is Dambrosio?
Dambrosio ranks #7,721 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 1.38 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 4,133 people with the surname Dambrosio. That is different from the site's living-bearer estimate (4,739), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 1.38 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 1.38 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Dambrosio.
Has Dambrosio become more or less common over time?
Between 2010 and 2020, the surname Dambrosio went from 4,275 recorded bearers to 4,133. That is a decrease of 142 (-3.3%). In the national ranking it rose from #7,763 to #7,721.
What does the Census say about the background of Dambrosio?
Among Census respondents with the surname Dambrosio, the largest self-reported group is White at 91.8%. The next largest groups are Hispanic (4.6%) and Two or More Races (2.5%). 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 Dambrosio in the 2020 Census, accounting for 91.8% (3,796 people in the source table).
What is the full ancestry breakdown?
Dambrosio appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (91.8%), Hispanic (4.6%), Two or More Races (2.5%). 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 Dambrosio (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 Dambrosio mean?
From the Italian surname D'Ambrosio, referring to a person from the town of Ambrosia or a descendant of Ambrose. 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 Dambrosio (1.38 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 people share the surname Dambrosio?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.