2000
#10,548
National surname rank
Recorded bearers 2,790
First available Census row
Per 100,000 1.03
Rare Last name
Rosati
Derived from the Italian word "rosato," meaning "pinkish" or "rosy," likely referring to a person with a ruddy complexion.
According to the 2020 US Census Bureau surname tables, roughly 3,123 Americans carry the last name Rosati. That puts it at #11,119 in the national surname ranking, appearing at a frequency of 0.91 per 100,000 people (about 1 in 109,752 residents).
This page is the full Name Census profile for the Rosati 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
3.1K
1 in 109,752
Census rank
#11,119
2020 decennial data
Per 100,000
0.9
Frequency rate
Recorded bearers
2.7K
rare in the US
Popularity narrative
The Census Bureau recorded 2,723 bearers of the surname Rosati in its 2020 decennial surname file. At a rate of 0.91 per 100,000 residents, it holds the 11119th position in the national surname ranking.
Among Census respondents with the surname Rosati, the largest self-reported group is White at 93.5%. The next largest groups are Hispanic (4.1%) and Two or More Races (1.5%).
Origin
Meaning and origin of Rosati
The surname Rosati is of Italian origin, with its roots traced back to the medieval period. It is believed to have originated in the region of Tuscany, particularly in the cities of Florence and Siena. The name is derived from the Italian word "rosa," meaning rose, and is likely associated with individuals who cultivated roses or lived in areas abundant with rose gardens.
One of the earliest recorded mentions of the name Rosati can be found in the historic documents of the Florentine Republic, dating back to the 13th century. In these records, various individuals bearing the name Rosati are listed as landowners, merchants, and artisans, suggesting the name's prevalence among the affluent and influential families of the time.
During the Renaissance period, the Rosati name gained prominence in the artistic and scholarly circles of Italy. Notably, Battista Rosati (1508-1573), a renowned painter and architect, was born in Florence and contributed to the artistic legacy of the city through his works adorning churches and palaces.
In the 17th century, the Rosati family expanded beyond the borders of Tuscany, with members settling in other regions of Italy, such as Rome and Naples. One prominent figure from this era was Giuseppe Rosati (1630-1691), a Jesuit scholar and theologian who authored several influential works on philosophy and theology.
As the centuries progressed, the Rosati surname also found its way into the annals of Italian literature. Francesco Rosati (1780-1854), a poet and writer from Siena, gained recognition for his contributions to the literary scene of the 19th century, with his works celebrating the beauty and cultural heritage of his native Tuscany.
Another notable figure bearing the Rosati name was Vincenzo Rosati (1825-1898), a prominent Italian politician and statesman who served as a member of the Italian Parliament and held various ministerial positions during the unification of Italy in the late 19th century.
While the Rosati surname has its roots firmly planted in Italy, it has since spread to other parts of the world through immigration and diaspora, with descendants of the original Italian lineages now found in countries like the United States, Canada, and Australia.
Demographics
Ancestry and ethnicity for Rosati
Among Census respondents with the surname Rosati, the largest self-reported group is White at 93.5%. The next largest groups are Hispanic (4.1%) and Two or More Races (1.5%).
The bar chart below shows how Rosati 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 Rosati surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.5% · 2,545
- Hispanic or Latino4.1% · 112
- Two or more races1.5% · 41
- Asian and Pacific Islander0.7% · 20
- Black or African American0.2% · 5
Timeline
Historical Census data for Rosati
Rosati 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
#10,968
National surname rank
Recorded bearers 2,900
+110 bearers (+3.9%)
Per 100,000 0.98
Rank movement Down 420 places
2020
#11,119
National surname rank
Recorded bearers 2,723
-177 bearers (-6.1%)
Per 100,000 0.91
Rank movement Down 151 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #10,548 | 2,790 | 1.03 | First available Census row | First available Census row |
| 2010 | #10,968 | 2,900 | 0.98 | +110 bearers (+3.9%) | Down 420 places |
| 2020 | #11,119 | 2,723 | 0.91 | -177 bearers (-6.1%) | Down 151 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 Rosati 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 | #10,968 | #11,119 | -1.4% |
| Count | 2,900 | 2,723 | -6.1% |
| Per 100K | 0.98 | 0.91 | -7.0% |
Between the 2010 and 2020 Census, the number of Rosati bearers went from 2,900 to 2,723 (-6.1% change). The surname moved down 151 positions in the national ranking, going from #10,968 to #11,119.
FAQ
Rosati surname: questions and answers
How many people in the U.S. have the surname Rosati?
Name Census estimates that about 3,123 living Americans carry the surname Rosati. Using the current population baseline, that works out to roughly 1 in 109,752 residents.
How common is Rosati?
Rosati ranks #11,119 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.91 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 2,723 people with the surname Rosati. That is different from the site's living-bearer estimate (3,123), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.91 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.91 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Rosati.
Has Rosati become more or less common over time?
Between 2010 and 2020, the surname Rosati went from 2,900 recorded bearers to 2,723. That is a decrease of 177 (-6.1%). In the national ranking it fell from #10,968 to #11,119.
What does the Census say about the background of Rosati?
Among Census respondents with the surname Rosati, the largest self-reported group is White at 93.5%. The next largest groups are Hispanic (4.1%) and Two or More Races (1.5%). 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 Rosati in the 2020 Census, accounting for 93.5% (2,545 people in the source table).
What is the full ancestry breakdown?
Rosati appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.5%), Hispanic (4.1%), Two or More Races (1.5%). 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 Rosati (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 Rosati mean?
Derived from the Italian word "rosato," meaning "pinkish" or "rosy," likely referring to a person with a ruddy complexion. 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 Rosati (0.91 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 Rosati?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.