2000
#122,534
National surname rank
Recorded bearers 130
First available Census row
Per 100,000 0.05
Very Rare Last name
Compagnoni
A surname derived from the Italian word "compagnone," meaning companion or comrade.
According to the 2020 US Census Bureau surname tables, roughly 123 Americans carry the last name Compagnoni. That puts it at #151,639 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,786,621 residents).
This page is the full Name Census profile for the Compagnoni 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
123
1 in 2,786,621
Census rank
#151,639
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
107
very rare in the US
Popularity narrative
The Census Bureau recorded 107 bearers of the surname Compagnoni in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 151639th position in the national surname ranking.
Among Census respondents with the surname Compagnoni, the largest self-reported group is White at 95.3%. The next largest groups are Hispanic (2.8%) and Two or More Races (1.9%).
Origin
Meaning and origin of Compagnoni
The surname Compagnoni originates from Italy, specifically from the northern regions of Lombardy and Emilia-Romagna. It is believed to have emerged during the late Middle Ages, around the 13th or 14th century. The name is derived from the Italian word "compagno," which means "companion" or "comrade," suggesting a possible connection to a guild or trade association.
One of the earliest recorded instances of the surname Compagnoni can be found in the archives of the city of Brescia, dating back to the late 14th century. A document from 1397 mentions a certain "Iohannes Compagnoni," indicating the presence of this surname in the region at that time.
The Compagnoni name has been associated with several notable figures throughout history. In the 16th century, Giovanni Battista Compagnoni (1524-1599) was a renowned Italian architect and sculptor who contributed to the design and construction of several churches and palaces in the city of Genoa.
Another prominent individual bearing this surname was Pietro Compagnoni (1619-1689), an Italian painter and art theorist from the Baroque period. He was particularly known for his religious works and his treatise on art theory, "La Pittura Vaga et Eccellente."
In the 18th century, Giuseppe Compagnoni (1754-1833) was a prominent Italian writer and poet who authored several works, including the historical novel "Le Notti Romane" (The Roman Nights).
The surname Compagnoni has also been linked to the world of music. Domenico Compagnoni (1746-1823) was an Italian composer and violinist who spent much of his career in St. Petersburg, Russia, where he served as a court musician and composer.
Another notable figure was Giulio Compagnoni (1872-1952), an Italian politician and lawyer who served as a member of the Italian Parliament and held various ministerial positions during the early 20th century.
While the Compagnoni surname can be found across various regions of Italy, it has maintained a stronger presence in the northern areas, particularly in Lombardy and Emilia-Romagna, where it likely originated. The name's roots can be traced back to the medieval period, reflecting its long-standing history and cultural significance within Italian communities.
Demographics
Ancestry and ethnicity for Compagnoni
Among Census respondents with the surname Compagnoni, the largest self-reported group is White at 95.3%. The next largest groups are Hispanic (2.8%) and Two or More Races (1.9%).
The bar chart below shows how Compagnoni 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 Compagnoni surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.3% · 102
- Hispanic or Latino2.8% · 3
- Two or more races1.9% · 2
Timeline
Historical Census data for Compagnoni
Compagnoni 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
#138,304
National surname rank
Recorded bearers 121
-9 bearers (-6.9%)
Per 100,000 0.04
Rank movement Down 15,770 places
2020
#151,639
National surname rank
Recorded bearers 107
-14 bearers (-11.6%)
Per 100,000 0.04
Rank movement Down 13,335 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #122,534 | 130 | 0.05 | First available Census row | First available Census row |
| 2010 | #138,304 | 121 | 0.04 | -9 bearers (-6.9%) | Down 15,770 places |
| 2020 | #151,639 | 107 | 0.04 | -14 bearers (-11.6%) | Down 13,335 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 Compagnoni 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 | #151,639 | -9.6% |
| Count | 121 | 107 | -11.6% |
| Per 100K | 0.04 | 0.04 | -10.5% |
Between the 2010 and 2020 Census, the number of Compagnoni bearers went from 121 to 107 (-11.6% change). The surname moved down 13,335 positions in the national ranking, going from #138,304 to #151,639.
FAQ
Compagnoni surname: questions and answers
How many people in the U.S. have the surname Compagnoni?
Name Census estimates that about 123 living Americans carry the surname Compagnoni. Using the current population baseline, that works out to roughly 1 in 2,786,621 residents.
How common is Compagnoni?
Compagnoni ranks #151,639 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 107 people with the surname Compagnoni. That is different from the site's living-bearer estimate (123), 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 Compagnoni.
Has Compagnoni become more or less common over time?
Between 2010 and 2020, the surname Compagnoni went from 121 recorded bearers to 107. That is a decrease of 14 (-11.6%). In the national ranking it fell from #138,304 to #151,639.
What does the Census say about the background of Compagnoni?
Among Census respondents with the surname Compagnoni, the largest self-reported group is White at 95.3%. The next largest groups are Hispanic (2.8%) and Two or More Races (1.9%). 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 Compagnoni in the 2020 Census, accounting for 95.3% (102 people in the source table).
What is the full ancestry breakdown?
Compagnoni appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.3%), Hispanic (2.8%), Two or More Races (1.9%). 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 Compagnoni (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 Compagnoni mean?
A surname derived from the Italian word "compagnone," meaning companion or comrade. 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 Compagnoni (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 are called Compagnoni?
For a quick modern take, check how many Americans have the surname Compagnoni on our sister site HowManyOfMe.org.