2000
#66,878
National surname rank
Recorded bearers 276
First available Census row
Per 100,000 0.10
Very Rare Last name
Derossi
An Italian surname referring to a person of reddish-blonde hair color.
According to the 2020 US Census Bureau surname tables, roughly 294 Americans carry the last name Derossi. That puts it at #80,054 in the national surname ranking, appearing at a frequency of 0.09 per 100,000 people (about 1 in 1,165,831 residents).
This page is the full Name Census profile for the Derossi 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
294
1 in 1,165,831
Census rank
#80,054
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
256
very rare in the US
Popularity narrative
The Census Bureau recorded 256 bearers of the surname Derossi in its 2020 decennial surname file. At a rate of 0.09 per 100,000 residents, it holds the 80054th position in the national surname ranking.
Among Census respondents with the surname Derossi, the largest self-reported group is White at 86.3%. The next largest groups are Hispanic (9.4%) and Two or More Races (3.1%).
Origin
Meaning and origin of Derossi
The surname DeRossi has its origins in Italy, dating back to the medieval period. The name is believed to be derived from the Italian word "rosso," which means "red." This suggests that the name was likely given to someone with red hair or a ruddy complexion.
One of the earliest recorded instances of the name DeRossi can be found in the Codice Diplomatico Veronese, a collection of documents from the city of Verona, Italy. The name appears in a document dated 1183, referring to a certain "Iohannes Rubeus de Rosis."
Throughout the 13th and 14th centuries, the DeRossi family became prominent in several Italian cities, including Rome, Parma, and Florence. One notable member of the family was Giambattista DeRossi (1822-1894), an Italian archaeologist and scholar who made significant contributions to the study of early Christian and Jewish antiquities.
In the 15th century, a branch of the DeRossi family settled in the city of Ferrara, where they became influential in the local Jewish community. One of the most famous members of this branch was Azariah dei Rossi (1511-1578), a Jewish scholar and philosopher who wrote extensively on Jewish history and theology.
Another notable figure with the surname DeRossi was Carlo DeRossi (1786-1863), an Italian painter and engraver who is best known for his etchings of Roman landmarks and landscapes.
During the Renaissance period, the DeRossi name also gained prominence in the field of music. Giovanni Battista DeRossi (1597-1655) was an Italian composer and organist who worked in the court of the Duke of Mantua.
In more recent times, the DeRossi surname has been carried by individuals such as Susanna DeRossi (1789-1852), an Italian poet and writer, and Vera DeRossi (1917-2000), an Italian-American actress and singer who appeared in several Hollywood films in the 1940s and 1950s.
It is worth noting that the DeRossi name has undergone various spelling variations over the centuries, including DeRosis, DeRubeis, and Rossi. These variations often reflect regional dialects or language adaptations.
Demographics
Ancestry and ethnicity for Derossi
Among Census respondents with the surname Derossi, the largest self-reported group is White at 86.3%. The next largest groups are Hispanic (9.4%) and Two or More Races (3.1%).
The bar chart below shows how Derossi 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 Derossi surname at the time of the 2020 Census, not any inherent property of the name itself.
- White86.3% · 221
- Hispanic or Latino9.4% · 24
- Two or more races3.1% · 8
- American Indian and Alaska Native0.8% · 2
- Black or African American0.4% · 1
Timeline
Historical Census data for Derossi
Derossi 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
#71,265
National surname rank
Recorded bearers 274
-2 bearers (-0.7%)
Per 100,000 0.09
Rank movement Down 4,387 places
2020
#80,054
National surname rank
Recorded bearers 256
-18 bearers (-6.6%)
Per 100,000 0.09
Rank movement Down 8,789 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #66,878 | 276 | 0.10 | First available Census row | First available Census row |
| 2010 | #71,265 | 274 | 0.09 | -2 bearers (-0.7%) | Down 4,387 places |
| 2020 | #80,054 | 256 | 0.09 | -18 bearers (-6.6%) | Down 8,789 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 Derossi 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 | #71,265 | #80,054 | -12.3% |
| Count | 274 | 256 | -6.6% |
| Per 100K | 0.09 | 0.09 | -4.8% |
Between the 2010 and 2020 Census, the number of Derossi bearers went from 274 to 256 (-6.6% change). The surname moved down 8,789 positions in the national ranking, going from #71,265 to #80,054.
Notable bearers
Famous people with the surname Derossi
FAQ
Derossi surname: questions and answers
How many people in the U.S. have the surname Derossi?
Name Census estimates that about 294 living Americans carry the surname Derossi. Using the current population baseline, that works out to roughly 1 in 1,165,831 residents.
How common is Derossi?
Derossi ranks #80,054 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.09 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 256 people with the surname Derossi. That is different from the site's living-bearer estimate (294), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.09 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.09 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 Derossi.
Has Derossi become more or less common over time?
Between 2010 and 2020, the surname Derossi went from 274 recorded bearers to 256. That is a decrease of 18 (-6.6%). In the national ranking it fell from #71,265 to #80,054.
What does the Census say about the background of Derossi?
Among Census respondents with the surname Derossi, the largest self-reported group is White at 86.3%. The next largest groups are Hispanic (9.4%) and Two or More Races (3.1%). 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 Derossi in the 2020 Census, accounting for 86.3% (221 people in the source table).
What is the full ancestry breakdown?
Derossi appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (86.3%), Hispanic (9.4%), Two or More Races (3.1%). 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 Derossi (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 Derossi mean?
An Italian surname referring to a person of reddish-blonde hair color. 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 Derossi (0.09 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 Derossi?
For a quick modern take, check how many people have the surname Derossi on our sister site HowManyOfMe.org.