2000
#116,835
National surname rank
First available Census row
An Italian surname derived from 'Pietro' meaning Peter and 'monaco' meaning monk.
According to the 2020 US Census Bureau surname tables, roughly 143 Americans carry the last name Pietromonaco. That puts it at #138,300 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,396,883 residents).
This page is the full Name Census profile for the Pietromonaco 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
143
1 in 2,396,883
Census rank
#138,300
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
125
very rare in the US
Popularity narrative
The Census Bureau recorded 125 bearers of the surname Pietromonaco in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 138300th position in the national surname ranking.
Among Census respondents with the surname Pietromonaco, the largest self-reported group is White at 83.2%. The next largest groups are Hispanic (8.8%) and Two or More Races (4.0%).
Origin
The surname Pietromonaco originates from Italy, specifically from the southern regions of Campania and Calabria. It is believed to have emerged in the late medieval period, around the 13th or 14th century. The name is a combination of two Italian words, "Pietro" meaning Peter, and "monaco" meaning monk, suggesting a possible connection to a religious order or monastic community.
One of the earliest recorded instances of the name Pietromonaco can be found in the historical archives of the city of Naples, dating back to the 15th century. It appears in a document from 1463, where a certain Giovanni Pietromonaco is mentioned as a landowner in the area of Portici.
In the 16th century, the name Pietromonaco is also documented in the town of Cava de' Tirreni, near Salerno. A church record from 1582 refers to a Lucia Pietromonaco, who was married to a local nobleman.
During the 17th century, the Pietromonaco family gained prominence in the town of Morano Calabro, in the province of Cosenza, Calabria. Historical records mention a notable figure named Francesco Pietromonaco, born in 1624, who served as a magistrate and played a significant role in the local administration.
In the 18th century, the name Pietromonaco appears in various documents related to the Kingdom of Naples. One example is Gennaro Pietromonaco, born in 1738, who was a prominent lawyer and legal scholar in the city of Naples.
As the name spread throughout southern Italy, variations in spelling and pronunciation emerged, including Pietromonaco, Pietromónaco, and Pietromonachi. Some notable individuals with this surname include:
1. Antonio Pietromonaco (1820-1892), an Italian artist and painter from Calabria, known for his landscapes and religious works.
2. Giuseppe Pietromonaco (1873-1947), an Italian politician and journalist from Campania, who served as a member of the Italian Parliament.
3. Raffaele Pietromonaco (1887-1967), an Italian sculptor and artist from Calabria, whose works can be found in several churches and public spaces in the region.
4. Maria Pietromonaco (1908-1986), an Italian writer and poet from Campania, known for her contributions to the Neapolitan literary tradition.
5. Vincenzo Pietromonaco (1920-2002), an Italian architect and urban planner from Calabria, who designed several notable buildings and public spaces in the region.
While the surname Pietromonaco has its roots in southern Italy, it has since spread to other parts of the country and beyond, with families bearing this name found in various regions and countries around the world.
Demographics
Among Census respondents with the surname Pietromonaco, the largest self-reported group is White at 83.2%. The next largest groups are Hispanic (8.8%) and Two or More Races (4.0%).
The bar chart below shows how Pietromonaco 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 Pietromonaco surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Pietromonaco 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
-2 bearers (-1.4%)
2020
National surname rank
-11 bearers (-8.1%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #116,835 | 138 | 0.05 | First available Census row | First available Census row |
| 2010 | #126,018 | 136 | 0.05 | -2 bearers (-1.4%) | Down 9,183 places |
| 2020 | #138,300 | 125 | 0.04 | -11 bearers (-8.1%) | Down 12,282 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 Pietromonaco 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 | #126,018 | #138,300 | -9.7% |
| Count | 136 | 125 | -8.1% |
| Per 100K | 0.05 | 0.04 | -16.4% |
Between the 2010 and 2020 Census, the number of Pietromonaco bearers went from 136 to 125 (-8.1% change). The surname moved down 12,282 positions in the national ranking, going from #126,018 to #138,300.
FAQ
Name Census estimates that about 143 living Americans carry the surname Pietromonaco. Using the current population baseline, that works out to roughly 1 in 2,396,883 residents.
Pietromonaco ranks #138,300 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.
The raw 2020 Census file counted 125 people with the surname Pietromonaco. That is different from the site's living-bearer estimate (143), 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 0.04 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 Pietromonaco.
Between 2010 and 2020, the surname Pietromonaco went from 136 recorded bearers to 125. That is a decrease of 11 (-8.1%). In the national ranking it fell from #126,018 to #138,300.
Among Census respondents with the surname Pietromonaco, the largest self-reported group is White at 83.2%. The next largest groups are Hispanic (8.8%) and Two or More Races (4.0%). 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 Pietromonaco in the 2020 Census, accounting for 83.2% (104 people in the source table).
Pietromonaco appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (83.2%), Hispanic (8.8%), Two or More Races (4.0%). 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 Pietromonaco (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 Italian surname derived from 'Pietro' meaning Peter and 'monaco' meaning monk. 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 Pietromonaco (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.
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.