2000
#30,412
National surname rank
Recorded bearers 725
First available Census row
Per 100,000 0.27
Rare Last name
Ambrocio
An Italian surname derived from the Late Latin name "Ambrosius", meaning "immortal" or "divine".
According to the 2020 US Census Bureau surname tables, roughly 2,218 Americans carry the last name Ambrocio. That puts it at #14,740 in the national surname ranking, appearing at a frequency of 0.65 per 100,000 people (about 1 in 154,533 residents).
This page is the full Name Census profile for the Ambrocio 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
2.2K
1 in 154,533
Census rank
#14,740
2020 decennial data
Per 100,000
0.6
Frequency rate
Recorded bearers
1.9K
rare in the US
Popularity narrative
The Census Bureau recorded 1,934 bearers of the surname Ambrocio in its 2020 decennial surname file. At a rate of 0.65 per 100,000 residents, it holds the 14740th position in the national surname ranking.
Among Census respondents with the surname Ambrocio, the largest self-reported group is Hispanic at 86.3%. The next largest groups are Asian/Pacific Islander (10.1%) and White (2.3%).
Origin
Meaning and origin of Ambrocio
The surname Ambrocio has its origins in Italy, specifically in the region of Tuscany. It dates back to the late medieval period, around the 13th or 14th century. The name is believed to be derived from the Italian personal name Ambrogio, which itself is derived from the Late Latin name Ambrosius, meaning "immortal" or "divine."
One of the earliest recorded instances of the surname Ambrocio can be found in a 14th-century manuscript from the city of Florence, where a certain Piero Ambrocio is mentioned as a merchant. This suggests that the name was already established among the merchant class of the time.
In the 15th century, a notable figure bearing the surname Ambrocio was Girolamo Ambrocio, a renowned painter and fresco artist who lived and worked in the city of Siena between 1445 and 1497. Some of his most famous works can still be seen in the churches and palaces of Siena, showcasing his mastery of the Renaissance style.
During the 16th century, the Ambrocio family appeared to have spread beyond Tuscany, with records showing members of the family residing in the neighboring regions of Umbria and Lazio. One such individual was Emilio Ambrocio, a scholar and humanist born in Perugia in 1520, who gained recognition for his translations of ancient Greek texts.
In the 17th century, the name Ambrocio was associated with a noble family from the town of Montepulciano in Tuscany. This family produced several notable figures, including Vincenzo Ambrocio, who served as a diplomat for the Grand Duchy of Tuscany in the court of Louis XIV of France in the late 1600s.
Another prominent figure with the surname Ambrocio was Gabriele Ambrocio, a military commander who fought in the Napoleonic Wars of the early 19th century. Born in Florence in 1775, he rose through the ranks of the French Army and participated in several major battles, earning distinction for his bravery and leadership.
While the Ambrocio surname has its roots in Italy, over the centuries it has spread to other parts of the world, including Spain, Portugal, and Latin America, where variations of the name such as Ambrosio and Ambrozio can be found.
Demographics
Ancestry and ethnicity for Ambrocio
Among Census respondents with the surname Ambrocio, the largest self-reported group is Hispanic at 86.3%. The next largest groups are Asian/Pacific Islander (10.1%) and White (2.3%).
The bar chart below shows how Ambrocio 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 Ambrocio surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino86.3% · 1,669
- Asian and Pacific Islander10.1% · 195
- White2.3% · 44
- Two or more races0.9% · 18
- American Indian and Alaska Native0.3% · 6
- Black or African American0.1% · 2
Timeline
Historical Census data for Ambrocio
Ambrocio 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
#17,216
National surname rank
Recorded bearers 1,645
+920 bearers (+126.9%)
Per 100,000 0.56
Rank movement Up 13,196 places
2020
#14,740
National surname rank
Recorded bearers 1,934
+289 bearers (+17.6%)
Per 100,000 0.65
Rank movement Up 2,476 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #30,412 | 725 | 0.27 | First available Census row | First available Census row |
| 2010 | #17,216 | 1,645 | 0.56 | +920 bearers (+126.9%) | Up 13,196 places |
| 2020 | #14,740 | 1,934 | 0.65 | +289 bearers (+17.6%) | Up 2,476 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 Ambrocio 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 | #17,216 | #14,740 | 14.4% |
| Count | 1,645 | 1,934 | 17.6% |
| Per 100K | 0.56 | 0.65 | 15.5% |
Between the 2010 and 2020 Census, the number of Ambrocio bearers went from 1,645 to 1,934 (+17.6% change). The surname moved up 2,476 positions in the national ranking, going from #17,216 to #14,740.
FAQ
Ambrocio surname: questions and answers
How many people in the U.S. have the surname Ambrocio?
Name Census estimates that about 2,218 living Americans carry the surname Ambrocio. Using the current population baseline, that works out to roughly 1 in 154,533 residents.
How common is Ambrocio?
Ambrocio ranks #14,740 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.65 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 1,934 people with the surname Ambrocio. That is different from the site's living-bearer estimate (2,218), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.65 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.65 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 Ambrocio.
Has Ambrocio become more or less common over time?
Between 2010 and 2020, the surname Ambrocio went from 1,645 recorded bearers to 1,934. That is an increase of 289 (+17.6%). In the national ranking it rose from #17,216 to #14,740.
What does the Census say about the background of Ambrocio?
Among Census respondents with the surname Ambrocio, the largest self-reported group is Hispanic at 86.3%. The next largest groups are Asian/Pacific Islander (10.1%) and White (2.3%). 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?
Hispanic is the largest self-reported group for the surname Ambrocio in the 2020 Census, accounting for 86.3% (1,669 people in the source table).
What is the full ancestry breakdown?
Ambrocio appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (86.3%), Asian/Pacific Islander (10.1%), White (2.3%). 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 Ambrocio (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 Ambrocio mean?
An Italian surname derived from the Late Latin name "Ambrosius", meaning "immortal" or "divine". 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 Ambrocio (0.65 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 have the surname Ambrocio?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.