2000
#106,477
National surname rank
First available Census row
An occupational surname derived from the Italian word "mastro" meaning "master" or "teacher".
According to the 2020 US Census Bureau surname tables, roughly 197 Americans carry the last name Mastrantonio. That puts it at #109,465 in the national surname ranking, appearing at a frequency of 0.06 per 100,000 people (about 1 in 1,739,870 residents).
This page is the full Name Census profile for the Mastrantonio 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
197
1 in 1,739,870
Census rank
#109,465
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
172
very rare in the US
Popularity narrative
The Census Bureau recorded 172 bearers of the surname Mastrantonio in its 2020 decennial surname file. At a rate of 0.06 per 100,000 residents, it holds the 109465th position in the national surname ranking.
Among Census respondents with the surname Mastrantonio, the largest self-reported group is White at 96.5%. The next largest groups are Black (1.2%) and Asian/Pacific Islander (1.2%).
Origin
The surname Mastrantonio has its roots in Italy, specifically in the southern regions. It is believed to have originated in the Middle Ages, somewhere around the 13th or 14th century. The name is derived from the Italian phrase "mastro Antonio," which translates to "Master Antonio." This suggests that the name may have been given to someone who was a skilled craftsman or master of a particular trade.
One of the earliest recorded instances of the Mastrantonio surname can be found in a historical document from the city of Naples, dated to the late 15th century. This document mentions a certain Mastrantonio di Napoli, who was a respected artisan in the city at the time.
The name Mastrantonio has also been associated with various locations in Italy, particularly in the regions of Campania and Basilicata. Some of the older spellings of place names that may have influenced the surname include "Mastrantoni" and "Mastrantuono."
Throughout history, there have been several notable individuals who bore the Mastrantonio surname. One such person was Girolamo Mastrantonio, a renowned Italian painter who lived during the 16th century (c. 1550-1620). His works can be found in various churches and galleries across Italy.
Another prominent figure was Antonio Mastrantonio, a 17th-century Italian architect (c. 1620-1690) who was responsible for the design and construction of several notable buildings in Naples and the surrounding areas.
In the 19th century, Giuseppe Mastrantonio (1810-1878) was a Italian composer and musician who gained recognition for his operas and orchestral works.
Additionally, the Mastrantonio surname has been associated with the Neapolitan nobility. One example is the Mastrantonio family from the town of Sorrento, who were granted noble status in the late 18th century.
It is worth noting that the name Mastrantonio has also been present in other parts of Europe, likely due to Italian migration and cultural exchange. For instance, there are records of individuals with this surname in Spain and France, dating back to the 17th and 18th centuries, respectively.
Demographics
Among Census respondents with the surname Mastrantonio, the largest self-reported group is White at 96.5%. The next largest groups are Black (1.2%) and Asian/Pacific Islander (1.2%).
The bar chart below shows how Mastrantonio 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 Mastrantonio surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Mastrantonio 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.
2000
National surname rank
First available Census row
2010
National surname rank
+13 bearers (+8.4%)
2020
National surname rank
+4 bearers (+2.4%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #106,477 | 155 | 0.06 | First available Census row | First available Census row |
| 2010 | #106,096 | 168 | 0.06 | +13 bearers (+8.4%) | Up 381 places |
| 2020 | #109,465 | 172 | 0.06 | +4 bearers (+2.4%) | Down 3,369 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
How has the Mastrantonio surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #106,096 | #109,465 | -3.2% |
| Count | 168 | 172 | 2.4% |
| Per 100K | 0.06 | 0.06 | -4.1% |
Between the 2010 and 2020 Census, the number of Mastrantonio bearers went from 168 to 172 (+2.4% change). The surname moved down 3,369 positions in the national ranking, going from #106,096 to #109,465.
Notable bearers
FAQ
Name Census estimates that about 197 living Americans carry the surname Mastrantonio. Using the current population baseline, that works out to roughly 1 in 1,739,870 residents.
Mastrantonio ranks #109,465 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.06 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 172 people with the surname Mastrantonio. That is different from the site's living-bearer estimate (197), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
It is the Census Bureau's normalized frequency measure. A rate of 0.06 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 Mastrantonio.
Between 2010 and 2020, the surname Mastrantonio went from 168 recorded bearers to 172. That is an increase of 4 (+2.4%). In the national ranking it fell from #106,096 to #109,465.
Among Census respondents with the surname Mastrantonio, the largest self-reported group is White at 96.5%. The next largest groups are Black (1.2%) and Asian/Pacific Islander (1.2%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
White is the largest self-reported group for the surname Mastrantonio in the 2020 Census, accounting for 96.5% (166 people in the source table).
Mastrantonio appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (96.5%), Black (1.2%), Asian/Pacific Islander (1.2%). 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.
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 Mastrantonio (2000, 2010, 2020).
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.
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.
An occupational surname derived from the Italian word "mastro" meaning "master" or "teacher". The fuller origin note on this page goes into more detail.
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.
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 Mastrantonio (0.06 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
See how many people have the last name Mastrantonio on HowManyOfMe.org, our sister site built around that single question.