2000
#30,582
National surname rank
Recorded bearers 720
First available Census row
Per 100,000 0.27
Rare Last name
Quadri
A surname likely derived from the Italian word "quadro," meaning square or frame.
According to the 2020 US Census Bureau surname tables, roughly 1,595 Americans carry the last name Quadri. That puts it at #19,449 in the national surname ranking, appearing at a frequency of 0.47 per 100,000 people (about 1 in 214,893 residents).
This page is the full Name Census profile for the Quadri 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.
For British records, Name Census UK has a British surname profile for Quadri with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
1.6K
1 in 214,893
Census rank
#19,449
2020 decennial data
Per 100,000
0.5
Frequency rate
Recorded bearers
1.4K
rare in the US
Popularity narrative
The Census Bureau recorded 1,391 bearers of the surname Quadri in its 2020 decennial surname file. At a rate of 0.47 per 100,000 residents, it holds the 19449th position in the national surname ranking.
Among Census respondents with the surname Quadri, the largest self-reported group is Asian/Pacific Islander at 70.5%. The next largest groups are Black (16.3%) and White (8.3%).
Origin
Meaning and origin of Quadri
The surname Quadri is of Italian origin, specifically from the Lombardy region of northern Italy. It is believed to have emerged during the late Middle Ages, around the 13th or 14th century. The name Quadri is derived from the Italian word "quadro," meaning "square" or "frame," likely referring to a person's occupation as a painter, framer, or someone involved in the production of art or decorative items.
One of the earliest recorded instances of the name Quadri can be found in the archives of the city of Milan, where a certain Giovanni Quadri was mentioned as a guild member of the painters and decorators in the year 1425. This suggests that the name was already well-established in the area by the early 15th century.
Another notable early reference to the name Quadri comes from the records of the Republic of Venice, where a Venetian merchant named Marco Quadri is mentioned in a trade document dated 1491. This indicates that the name had spread beyond the Lombardy region and was present in other parts of northern Italy during the Renaissance period.
In the 16th century, a famous Italian painter named Giovanni Battista Quadri (1535-1604) earned recognition for his religious works and frescoes adorning various churches in Milan and the surrounding areas. His artistic achievements likely contributed to the prestige of the surname Quadri within the Italian art community.
During the 17th century, a prominent Italian architect and engineer named Girolamo Quadri (1620-1687) was responsible for the design and construction of several notable buildings in the city of Turin, including the Church of San Filippo Neri and the Palazzo Reale.
In more recent times, the Quadri surname has been associated with notable individuals such as the Italian politician and economist Renato Quadri (1920-2008), who served as a member of the Italian Parliament and as the Minister of Industry and Commerce in the 1970s.
Overall, the surname Quadri has a rich history deeply rooted in the artistic and cultural heritage of northern Italy, particularly in the regions of Lombardy and Veneto, where it originated and flourished over several centuries.
Demographics
Ancestry and ethnicity for Quadri
Among Census respondents with the surname Quadri, the largest self-reported group is Asian/Pacific Islander at 70.5%. The next largest groups are Black (16.3%) and White (8.3%).
The bar chart below shows how Quadri 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 Quadri surname at the time of the 2020 Census, not any inherent property of the name itself.
- Asian and Pacific Islander70.5% · 980
- Black or African American16.3% · 227
- White8.3% · 116
- Two or more races3.4% · 47
- Hispanic or Latino1.5% · 21
Timeline
Historical Census data for Quadri
Quadri 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
#23,457
National surname rank
Recorded bearers 1,084
+364 bearers (+50.6%)
Per 100,000 0.37
Rank movement Up 7,125 places
2020
#19,449
National surname rank
Recorded bearers 1,391
+307 bearers (+28.3%)
Per 100,000 0.47
Rank movement Up 4,008 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #30,582 | 720 | 0.27 | First available Census row | First available Census row |
| 2010 | #23,457 | 1,084 | 0.37 | +364 bearers (+50.6%) | Up 7,125 places |
| 2020 | #19,449 | 1,391 | 0.47 | +307 bearers (+28.3%) | Up 4,008 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 Quadri 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 | #23,457 | #19,449 | 17.1% |
| Count | 1,084 | 1,391 | 28.3% |
| Per 100K | 0.37 | 0.47 | 25.8% |
Between the 2010 and 2020 Census, the number of Quadri bearers went from 1,084 to 1,391 (+28.3% change). The surname moved up 4,008 positions in the national ranking, going from #23,457 to #19,449.
FAQ
Quadri surname: questions and answers
How many people in the U.S. have the surname Quadri?
Name Census estimates that about 1,595 living Americans carry the surname Quadri. Using the current population baseline, that works out to roughly 1 in 214,893 residents.
How common is Quadri?
Quadri ranks #19,449 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.47 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 1,391 people with the surname Quadri. That is different from the site's living-bearer estimate (1,595), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.47 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.47 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 Quadri.
Has Quadri become more or less common over time?
Between 2010 and 2020, the surname Quadri went from 1,084 recorded bearers to 1,391. That is an increase of 307 (+28.3%). In the national ranking it rose from #23,457 to #19,449.
What does the Census say about the background of Quadri?
Among Census respondents with the surname Quadri, the largest self-reported group is Asian/Pacific Islander at 70.5%. The next largest groups are Black (16.3%) and White (8.3%). 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?
Asian/Pacific Islander is the largest self-reported group for the surname Quadri in the 2020 Census, accounting for 70.5% (980 people in the source table).
What is the full ancestry breakdown?
Quadri appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Asian/Pacific Islander (70.5%), Black (16.3%), White (8.3%). 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 Quadri (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 Quadri mean?
A surname likely derived from the Italian word "quadro," meaning square or frame. 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 Quadri (0.47 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 Americans have the surname Quadri?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.