2000
#128,797
National surname rank
Recorded bearers 122
First available Census row
Per 100,000 0.05
Very Rare Last name
Stefanoni
An Italian surname derived from the given name Stefano meaning "crown" or "garland".
According to the 2020 US Census Bureau surname tables, roughly 148 Americans carry the last name Stefanoni. That puts it at #135,344 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,315,908 residents).
This page is the full Name Census profile for the Stefanoni 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
148
1 in 2,315,908
Census rank
#135,344
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
129
very rare in the US
Popularity narrative
The Census Bureau recorded 129 bearers of the surname Stefanoni in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 135344th position in the national surname ranking.
Among Census respondents with the surname Stefanoni, the largest self-reported group is White at 69.8%. The next largest groups are Hispanic (27.9%) and Asian/Pacific Islander (0.8%).
Origin
Meaning and origin of Stefanoni
The surname Stefanoni originated in Italy during the medieval period. It is derived from the Italian name Stefano, which translates to "crown" or "garland" and has its roots in the Greek name Stephanos. This name was particularly common in northern and central Italian regions, such as Lombardy and Emilia-Romagna.
One of the earliest recorded instances of the Stefanoni surname can be found in the archives of the city of Bergamo, dating back to the 13th century. In these documents, a certain Giacomo Stefanoni is mentioned as a landowner and merchant.
By the 15th century, the Stefanoni family had established themselves as prominent citizens in the town of Casalmaggiore, located in the province of Cremona. Historical records from this time period mention a Pietro Stefanoni who served as a magistrate and diplomat, representing the interests of the Duchy of Milan in various diplomatic negotiations.
In the 16th century, the name Stefanoni can be found in the annals of the Republic of Venice, where a Giovanni Battista Stefanoni is recorded as a successful merchant and trader. His business dealings extended across the Mediterranean region, and he was known for his expertise in the spice trade.
During the Renaissance period, the Stefanoni family produced several notable artists and scholars. One of the most renowned was Antonio Stefanoni (1520-1597), a painter and architect who worked in the cities of Mantua and Ferrara. His frescoes and architectural designs can still be admired in various churches and palaces throughout northern Italy.
Another distinguished figure with the Stefanoni surname was Girolamo Stefanoni (1572-1629), a Jesuit scholar and philosopher who taught at the University of Padua. His writings on metaphysics and ethics were highly influential during his lifetime and contributed significantly to the intellectual discourse of the time.
As the centuries passed, the Stefanoni family continued to play a role in various aspects of Italian society. In the 18th century, a certain Carlo Stefanoni (1718-1792) was a renowned composer and violinist who performed at the courts of several Italian nobles and was praised for his virtuosic skills.
The 19th century saw the emergence of Giacomo Stefanoni (1825-1899), a prominent political figure who served as a deputy in the Italian Parliament and was actively involved in the Risorgimento movement, which ultimately led to the unification of Italy.
These are just a few examples of the rich history and diversity of the Stefanoni surname, which has left its mark on Italian culture, arts, and intellectual life throughout the centuries.
Demographics
Ancestry and ethnicity for Stefanoni
Among Census respondents with the surname Stefanoni, the largest self-reported group is White at 69.8%. The next largest groups are Hispanic (27.9%) and Asian/Pacific Islander (0.8%).
The bar chart below shows how Stefanoni 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 Stefanoni surname at the time of the 2020 Census, not any inherent property of the name itself.
- White69.8% · 90
- Hispanic or Latino27.9% · 36
- Asian and Pacific Islander0.8% · 1
- American Indian and Alaska Native0.8% · 1
- Two or more races0.8% · 1
Timeline
Historical Census data for Stefanoni
Stefanoni 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
#129,825
National surname rank
Recorded bearers 131
+9 bearers (+7.4%)
Per 100,000 0.04
Rank movement Down 1,028 places
2020
#135,344
National surname rank
Recorded bearers 129
-2 bearers (-1.5%)
Per 100,000 0.04
Rank movement Down 5,519 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #128,797 | 122 | 0.05 | First available Census row | First available Census row |
| 2010 | #129,825 | 131 | 0.04 | +9 bearers (+7.4%) | Down 1,028 places |
| 2020 | #135,344 | 129 | 0.04 | -2 bearers (-1.5%) | Down 5,519 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 Stefanoni 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 | #129,825 | #135,344 | -4.3% |
| Count | 131 | 129 | -1.5% |
| Per 100K | 0.04 | 0.04 | 7.9% |
Between the 2010 and 2020 Census, the number of Stefanoni bearers went from 131 to 129 (-1.5% change). The surname moved down 5,519 positions in the national ranking, going from #129,825 to #135,344.
FAQ
Stefanoni surname: questions and answers
How many people in the U.S. have the surname Stefanoni?
Name Census estimates that about 148 living Americans carry the surname Stefanoni. Using the current population baseline, that works out to roughly 1 in 2,315,908 residents.
How common is Stefanoni?
Stefanoni ranks #135,344 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 129 people with the surname Stefanoni. That is different from the site's living-bearer estimate (148), 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 Stefanoni.
Has Stefanoni become more or less common over time?
Between 2010 and 2020, the surname Stefanoni went from 131 recorded bearers to 129. That is a decrease of 2 (-1.5%). In the national ranking it fell from #129,825 to #135,344.
What does the Census say about the background of Stefanoni?
Among Census respondents with the surname Stefanoni, the largest self-reported group is White at 69.8%. The next largest groups are Hispanic (27.9%) and Asian/Pacific Islander (0.8%). 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 Stefanoni in the 2020 Census, accounting for 69.8% (90 people in the source table).
What is the full ancestry breakdown?
Stefanoni appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (69.8%), Hispanic (27.9%), Asian/Pacific Islander (0.8%). 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 Stefanoni (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 Stefanoni mean?
An Italian surname derived from the given name Stefano meaning "crown" or "garland". 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 Stefanoni (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 common is the surname Stefanoni?
Find out how many Americans have the surname Stefanoni on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.