2000
#134,037
National surname rank
Recorded bearers 116
First available Census row
Per 100,000 0.04
Very Rare Last name
Monachelli
An Italian occupational surname for a monk or member of the religious order.
According to the 2020 US Census Bureau surname tables, roughly 117 Americans carry the last name Monachelli. That puts it at #154,755 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,929,524 residents).
This page is the full Name Census profile for the Monachelli 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
117
1 in 2,929,524
Census rank
#154,755
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
102
very rare in the US
Popularity narrative
The Census Bureau recorded 102 bearers of the surname Monachelli in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154755th position in the national surname ranking.
Among Census respondents with the surname Monachelli, the largest self-reported group is White at 90.2%. The next largest groups are Hispanic (4.9%) and Two or More Races (3.9%).
Origin
Meaning and origin of Monachelli
The surname MONACHELLI has its origins in Italy, dating back to the medieval period. It is derived from the Italian word "monaco," meaning "monk," and is believed to have initially referred to individuals who either lived near a monastery or had some association with monastic life.
One of the earliest recorded instances of the name can be found in the Codice Diplomatico Longobardo, a collection of medieval legal documents from the Lombard period in Italy, where the name "Monachelli" is mentioned in reference to a landowner in the region of Tuscany in the 12th century.
In the 13th century, the name appeared in the Libro di Montaperti, a historical document chronicling the Battle of Montaperti in 1260, where a certain Guido Monachelli was recorded as a soldier fighting for the Ghibelline faction in the conflict between the Guelphs and Ghibellines in medieval Italy.
During the Renaissance period, the name gained prominence with the rise of the Monachelli family in Florence. One notable member was Bartolomeo Monachelli (1453-1521), a renowned painter and architect who contributed to the design of various churches and palaces in the city.
In the 17th century, the name was associated with Girolamo Monachelli (1610-1678), a celebrated jurist and legal scholar who served as a judge in the Grand Duchy of Tuscany and authored several influential treatises on Roman law.
Another prominent figure was Giuseppe Monachelli (1768-1832), a military officer who served under Napoleon Bonaparte and played a significant role in the French campaigns in Italy during the Napoleonic Wars.
Throughout history, the surname MONACHELLI has been associated with various professions and backgrounds, from artists and scholars to soldiers and landowners, reflecting the diverse and rich heritage of this Italian family name.
Demographics
Ancestry and ethnicity for Monachelli
Among Census respondents with the surname Monachelli, the largest self-reported group is White at 90.2%. The next largest groups are Hispanic (4.9%) and Two or More Races (3.9%).
The bar chart below shows how Monachelli 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 Monachelli surname at the time of the 2020 Census, not any inherent property of the name itself.
- White90.2% · 92
- Hispanic or Latino4.9% · 5
- Two or more races3.9% · 4
- Asian and Pacific Islander1.0% · 1
Timeline
Historical Census data for Monachelli
Monachelli 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
#148,347
National surname rank
Recorded bearers 111
-5 bearers (-4.3%)
Per 100,000 0.04
Rank movement Down 14,310 places
2020
#154,755
National surname rank
Recorded bearers 102
-9 bearers (-8.1%)
Per 100,000 0.03
Rank movement Down 6,408 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #134,037 | 116 | 0.04 | First available Census row | First available Census row |
| 2010 | #148,347 | 111 | 0.04 | -5 bearers (-4.3%) | Down 14,310 places |
| 2020 | #154,755 | 102 | 0.03 | -9 bearers (-8.1%) | Down 6,408 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 Monachelli 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 | #148,347 | #154,755 | -4.3% |
| Count | 111 | 102 | -8.1% |
| Per 100K | 0.04 | 0.03 | -14.7% |
Between the 2010 and 2020 Census, the number of Monachelli bearers went from 111 to 102 (-8.1% change). The surname moved down 6,408 positions in the national ranking, going from #148,347 to #154,755.
FAQ
Monachelli surname: questions and answers
How many people in the U.S. have the surname Monachelli?
Name Census estimates that about 117 living Americans carry the surname Monachelli. Using the current population baseline, that works out to roughly 1 in 2,929,524 residents.
How common is Monachelli?
Monachelli ranks #154,755 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 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 102 people with the surname Monachelli. That is different from the site's living-bearer estimate (117), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Monachelli.
Has Monachelli become more or less common over time?
Between 2010 and 2020, the surname Monachelli went from 111 recorded bearers to 102. That is a decrease of 9 (-8.1%). In the national ranking it fell from #148,347 to #154,755.
What does the Census say about the background of Monachelli?
Among Census respondents with the surname Monachelli, the largest self-reported group is White at 90.2%. The next largest groups are Hispanic (4.9%) and Two or More Races (3.9%). 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 Monachelli in the 2020 Census, accounting for 90.2% (92 people in the source table).
What is the full ancestry breakdown?
Monachelli appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (90.2%), Hispanic (4.9%), Two or More Races (3.9%). 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 Monachelli (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 Monachelli mean?
An Italian occupational surname for a monk or member of the religious order. 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 Monachelli (0.03 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 Monachelli?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.