2010
#138,304
National surname rank
Recorded bearers 121
First available Census row
Per 100,000 0.04
Very Rare Last name
Piagentini
An Italian surname that likely refers to someone from a location called Piagentina.
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Piagentini. That puts it at #147,221 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,636,572 residents).
This page is the full Name Census profile for the Piagentini 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
130
1 in 2,636,572
Census rank
#147,221
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
113
very rare in the US
Popularity narrative
The Census Bureau recorded 113 bearers of the surname Piagentini in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147221st position in the national surname ranking.
Among Census respondents with the surname Piagentini, the largest self-reported group is White at 85.0%. The next largest groups are Black (6.2%) and Two or More Races (6.2%).
Origin
Meaning and origin of Piagentini
The surname Piagentini has its origins in Italy, where it first emerged in the medieval period. It is believed to have originated as a locative name, derived from a place name. Specifically, the name may have its roots in the Italian city of Piacenza, located in the northern region of Emilia-Romagna.
One of the earliest recorded instances of the Piagentini surname can be found in the Codex Diplomaticus Cavensis, a collection of medieval documents from the Cava de' Tirreni monastery in Southern Italy. This manuscript, dating back to the 11th century, contains a reference to a certain "Petrus Piagentini" who was likely a resident of the area.
During the Renaissance period, the Piagentini name gained further recognition, particularly in the arts and literature. Notably, Girolamo Piagentini (1525-1592) was a prominent Italian painter and architect who hailed from the city of Piacenza. His works can be found in various churches and palaces throughout Italy, showcasing the artistic talents of this family.
In the realm of literature, Bartolomeo Piagentini (1570-1638) was a renowned Italian scholar and writer. He authored several works on history, philosophy, and theology, contributing significantly to the intellectual discourse of his time.
As the centuries progressed, the Piagentini name continued to make its mark across various fields. In the 18th century, Antonio Piagentini (1707-1782) was a respected Italian jurist and legal scholar, known for his influential writings on civil law.
Another notable figure bearing the Piagentini name was Vincenzo Piagentini (1832-1901), a celebrated Italian botanist and naturalist. His extensive research on plant species and their habitats earned him recognition among the scientific community of his era.
While the name Piagentini may have originated from a specific region in Italy, its bearers have left their mark across the country and beyond, contributing to various aspects of society, including art, literature, law, and science.
Demographics
Ancestry and ethnicity for Piagentini
Among Census respondents with the surname Piagentini, the largest self-reported group is White at 85.0%. The next largest groups are Black (6.2%) and Two or More Races (6.2%).
The bar chart below shows how Piagentini 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 Piagentini surname at the time of the 2020 Census, not any inherent property of the name itself.
- White85.0% · 96
- Black or African American6.2% · 7
- Two or more races6.2% · 7
- Hispanic or Latino2.7% · 3
Timeline
Historical Census data for Piagentini
Piagentini appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#147,221
National surname rank
Recorded bearers 113
-8 bearers (-6.6%)
Per 100,000 0.04
Rank movement Down 8,917 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #138,304 | 121 | 0.04 | First available Census row | First available Census row |
| 2020 | #147,221 | 113 | 0.04 | -8 bearers (-6.6%) | Down 8,917 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 Piagentini 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 | #138,304 | #147,221 | -6.4% |
| Count | 121 | 113 | -6.6% |
| Per 100K | 0.04 | 0.04 | -5.5% |
Between the 2010 and 2020 Census, the number of Piagentini bearers went from 121 to 113 (-6.6% change). The surname moved down 8,917 positions in the national ranking, going from #138,304 to #147,221.
FAQ
Piagentini surname: questions and answers
How many people in the U.S. have the surname Piagentini?
Name Census estimates that about 130 living Americans carry the surname Piagentini. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
How common is Piagentini?
Piagentini ranks #147,221 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 113 people with the surname Piagentini. That is different from the site's living-bearer estimate (130), 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 Piagentini.
Has Piagentini become more or less common over time?
Between 2010 and 2020, the surname Piagentini went from 121 recorded bearers to 113. That is a decrease of 8 (-6.6%). In the national ranking it fell from #138,304 to #147,221.
What does the Census say about the background of Piagentini?
Among Census respondents with the surname Piagentini, the largest self-reported group is White at 85.0%. The next largest groups are Black (6.2%) and Two or More Races (6.2%). 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 Piagentini in the 2020 Census, accounting for 85.0% (96 people in the source table).
What is the full ancestry breakdown?
Piagentini appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (85.0%), Black (6.2%), Two or More Races (6.2%). 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.
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 Piagentini (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 Piagentini mean?
An Italian surname that likely refers to someone from a location called Piagentina. 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 Piagentini (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 Piagentini?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.