2010
#156,044
National surname rank
Recorded bearers 104
First available Census row
Per 100,000 0.04
Very Rare Last name
Pacchioli
A surname derived from the Italian word "pacchia" meaning "leisure" or "pleasure."
According to the 2020 US Census Bureau surname tables, roughly 128 Americans carry the last name Pacchioli. That puts it at #147,954 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,677,768 residents).
This page is the full Name Census profile for the Pacchioli 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
128
1 in 2,677,768
Census rank
#147,954
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
112
very rare in the US
Popularity narrative
The Census Bureau recorded 112 bearers of the surname Pacchioli in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147954th position in the national surname ranking.
Among Census respondents with the surname Pacchioli, the largest self-reported group is White at 87.5%. The next largest groups are Hispanic (8.9%) and Two or More Races (1.8%).
Origin
Meaning and origin of Pacchioli
The surname PACCHIOLI is believed to have originated in Italy, likely during the medieval period. It is thought to derive from the Italian word "pacchia," which means "pleasure" or "comfort." This suggests that the name may have been given to someone who lived a life of ease or luxury.
One of the earliest recorded instances of the name can be found in a document from the 14th century, where a certain Girolamo Pacchioli is mentioned as a merchant in the city of Pisa. This provides evidence that the name was already in use by that time and may have been associated with individuals involved in trade or commerce.
In the 15th century, there are records of a notable figure named Luca Pacchioli (1447-1517), who was a mathematician and Franciscan friar from the city of Sansepolcro in Tuscany. He is widely regarded as the "Father of Accounting" for his pioneering work in developing the double-entry bookkeeping system, which revolutionized the field of accountancy.
Another individual of note was Guido Pacchioli (1567-1626), an Italian painter who was active during the late Renaissance period. He is known for his religious works, particularly those commissioned for churches in his native city of Modena and the surrounding areas.
In the 18th century, the name appears in connection with a prominent family from the region of Emilia-Romagna. Giuseppe Pacchioli (1727-1798) was a landowner and politician who served as a senator in the city of Bologna during the latter part of his life.
Moving into the 19th century, there are records of a certain Antonio Pacchioli (1829-1901), who was a renowned architect and urban planner. He was responsible for the design of several iconic buildings and public spaces in the city of Milan, including the Galleria Vittorio Emanuele II, which is considered one of the oldest shopping malls in the world.
These examples illustrate the longstanding presence of the PACCHIOLI surname in various regions of Italy, with individuals from different walks of life bearing this name throughout history. While the name may have originally been associated with a particular lifestyle or occupation, it has since been carried by notable figures across various fields, including mathematics, art, politics, and architecture.
Demographics
Ancestry and ethnicity for Pacchioli
Among Census respondents with the surname Pacchioli, the largest self-reported group is White at 87.5%. The next largest groups are Hispanic (8.9%) and Two or More Races (1.8%).
The bar chart below shows how Pacchioli 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 Pacchioli surname at the time of the 2020 Census, not any inherent property of the name itself.
- White87.5% · 98
- Hispanic or Latino8.9% · 10
- Two or more races1.8% · 2
- Asian and Pacific Islander0.9% · 1
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Pacchioli
Pacchioli 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
#147,954
National surname rank
Recorded bearers 112
+8 bearers (+7.7%)
Per 100,000 0.04
Rank movement Up 8,090 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #156,044 | 104 | 0.04 | First available Census row | First available Census row |
| 2020 | #147,954 | 112 | 0.04 | +8 bearers (+7.7%) | Up 8,090 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 Pacchioli 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 | #156,044 | #147,954 | 5.2% |
| Count | 104 | 112 | 7.7% |
| Per 100K | 0.04 | 0.04 | -6.3% |
Between the 2010 and 2020 Census, the number of Pacchioli bearers went from 104 to 112 (+7.7% change). The surname moved up 8,090 positions in the national ranking, going from #156,044 to #147,954.
FAQ
Pacchioli surname: questions and answers
How many people in the U.S. have the surname Pacchioli?
Name Census estimates that about 128 living Americans carry the surname Pacchioli. Using the current population baseline, that works out to roughly 1 in 2,677,768 residents.
How common is Pacchioli?
Pacchioli ranks #147,954 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 112 people with the surname Pacchioli. That is different from the site's living-bearer estimate (128), 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 Pacchioli.
Has Pacchioli become more or less common over time?
Between 2010 and 2020, the surname Pacchioli went from 104 recorded bearers to 112. That is an increase of 8 (+7.7%). In the national ranking it rose from #156,044 to #147,954.
What does the Census say about the background of Pacchioli?
Among Census respondents with the surname Pacchioli, the largest self-reported group is White at 87.5%. The next largest groups are Hispanic (8.9%) and Two or More Races (1.8%). 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 Pacchioli in the 2020 Census, accounting for 87.5% (98 people in the source table).
What is the full ancestry breakdown?
Pacchioli appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (87.5%), Hispanic (8.9%), Two or More Races (1.8%). 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 Pacchioli (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 Pacchioli mean?
A surname derived from the Italian word "pacchia" meaning "leisure" or "pleasure." 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 Pacchioli (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 people have the surname Pacchioli?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.