2000
#57,406
National surname rank
Recorded bearers 332
First available Census row
Per 100,000 0.12
Very Rare Last name
Pieretti
A surname of Italian origin meaning "little stone" or "pebble".
According to the 2020 US Census Bureau surname tables, roughly 406 Americans carry the last name Pieretti. That puts it at #61,280 in the national surname ranking, appearing at a frequency of 0.12 per 100,000 people (about 1 in 844,223 residents).
This page is the full Name Census profile for the Pieretti 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
406
1 in 844,223
Census rank
#61,280
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
354
very rare in the US
Popularity narrative
The Census Bureau recorded 354 bearers of the surname Pieretti in its 2020 decennial surname file. At a rate of 0.12 per 100,000 residents, it holds the 61280th position in the national surname ranking.
Among Census respondents with the surname Pieretti, the largest self-reported group is White at 78.0%. The next largest groups are Hispanic (18.4%) and Two or More Races (1.7%).
Origin
Meaning and origin of Pieretti
The surname Pieretti originated in Italy, specifically in the regions of Tuscany and Emilia-Romagna, dating back to the 14th century. It is derived from the Italian personal name Piero, which is a variant of the name Pietro, the Italian form of Peter. This name has roots in the ancient Greek word "Petros," meaning rock or stone.
One of the earliest recorded instances of the surname Pieretti can be found in the archives of Florence from the late 14th century, where a certain Giovanni Pieretti is mentioned as a merchant and landowner. The name also appears in the records of the city of Bologna in the 15th century, indicating its presence in the Emilia-Romagna region during that period.
Notably, the surname Pieretti is associated with the noble Pieretti family of Forlì, a city in the Emilia-Romagna region. This family held significant influence and power in the region during the Renaissance period, with several members serving as prominent figures in the political and religious spheres.
One of the earliest known Pieretti individuals was Francesco Pieretti (1450-1518), a humanist scholar and diplomat who served as the ambassador of the Duchy of Milan to the Republic of Venice. Another notable figure was Cardinal Giovanni Battista Pieretti (1520-1595), a highly influential churchman who played a crucial role in the Council of Trent, one of the most significant events of the Catholic Counter-Reformation.
In the 17th century, the Pieretti family continued to hold significant social and political standing in Forlì. Giulio Pieretti (1610-1678) was a renowned lawyer and jurist who served as the mayor of Forlì and played a pivotal role in the city's legal and administrative affairs.
Another prominent individual was Alessandro Pieretti (1735-1810), a renowned architect and urban planner who contributed to the design and development of several notable buildings and public spaces in Forlì and the surrounding areas.
Lastly, the 19th century saw the rise of Nicola Pieretti (1820-1892), a distinguished Italian painter and sculptor who is renowned for his works depicting historical and mythological themes, many of which can be found in various museums and galleries throughout Italy.
Demographics
Ancestry and ethnicity for Pieretti
Among Census respondents with the surname Pieretti, the largest self-reported group is White at 78.0%. The next largest groups are Hispanic (18.4%) and Two or More Races (1.7%).
The bar chart below shows how Pieretti 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 Pieretti surname at the time of the 2020 Census, not any inherent property of the name itself.
- White78.0% · 276
- Hispanic or Latino18.4% · 65
- Two or more races1.7% · 6
- Asian and Pacific Islander1.1% · 4
- Black or African American0.6% · 2
- American Indian and Alaska Native0.3% · 1
Timeline
Historical Census data for Pieretti
Pieretti 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
#57,101
National surname rank
Recorded bearers 357
+25 bearers (+7.5%)
Per 100,000 0.12
Rank movement Up 305 places
2020
#61,280
National surname rank
Recorded bearers 354
-3 bearers (-0.8%)
Per 100,000 0.12
Rank movement Down 4,179 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #57,406 | 332 | 0.12 | First available Census row | First available Census row |
| 2010 | #57,101 | 357 | 0.12 | +25 bearers (+7.5%) | Up 305 places |
| 2020 | #61,280 | 354 | 0.12 | -3 bearers (-0.8%) | Down 4,179 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 Pieretti 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 | #57,101 | #61,280 | -7.3% |
| Count | 357 | 354 | -0.8% |
| Per 100K | 0.12 | 0.12 | -1.3% |
Between the 2010 and 2020 Census, the number of Pieretti bearers went from 357 to 354 (-0.8% change). The surname moved down 4,179 positions in the national ranking, going from #57,101 to #61,280.
FAQ
Pieretti surname: questions and answers
How many people in the U.S. have the surname Pieretti?
Name Census estimates that about 406 living Americans carry the surname Pieretti. Using the current population baseline, that works out to roughly 1 in 844,223 residents.
How common is Pieretti?
Pieretti ranks #61,280 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.12 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 354 people with the surname Pieretti. That is different from the site's living-bearer estimate (406), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.12 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.12 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 Pieretti.
Has Pieretti become more or less common over time?
Between 2010 and 2020, the surname Pieretti went from 357 recorded bearers to 354. That is a decrease of 3 (-0.8%). In the national ranking it fell from #57,101 to #61,280.
What does the Census say about the background of Pieretti?
Among Census respondents with the surname Pieretti, the largest self-reported group is White at 78.0%. The next largest groups are Hispanic (18.4%) and Two or More Races (1.7%). 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 Pieretti in the 2020 Census, accounting for 78.0% (276 people in the source table).
What is the full ancestry breakdown?
Pieretti appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (78.0%), Hispanic (18.4%), Two or More Races (1.7%). 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 Pieretti (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 Pieretti mean?
A surname of Italian origin meaning "little stone" or "pebble". 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 Pieretti (0.12 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 Pieretti?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.