2000
#139,757
National surname rank
Recorded bearers 110
First available Census row
Per 100,000 0.04
Very Rare Last name
Delraso
An Italian occupational surname referring to someone who sheared cloth.
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Delraso. That puts it at #147,221 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,636,572 residents).
This page is the full Name Census profile for the Delraso 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
130
1 in 2,636,572
Census rank
#147,221
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
113
very rare in the US
Popularity narrative
The Census Bureau recorded 113 bearers of the surname Delraso in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147221st position in the national surname ranking.
Among Census respondents with the surname Delraso, the largest self-reported group is White at 66.4%. The next largest groups are Hispanic (29.2%) and Two or More Races (2.7%).
Origin
Meaning and origin of Delraso
The surname DELRASO has its origins in Italy, dating back to the early medieval period. It is believed to have derived from the Italian word "raso," meaning "smooth" or "shaved," which may have referred to someone who had a smooth or shaved head or face.
The earliest recorded instances of the name DELRASO can be traced back to the 13th century in the region of Tuscany, particularly in the city of Florence. It is possible that the name originated from a nickname or occupation related to the textile industry, as the city was renowned for its fine fabrics and clothing manufacturing.
One of the earliest known bearers of the DELRASO name was Giovanni DELRASO, a merchant who lived in Florence during the late 13th century. His name appears in several historical records and documents from that time period, indicating the family's presence in the city.
In the 14th century, the DELRASO family is mentioned in the records of the Florentine Signoria, the governing body of the Republic of Florence. This suggests that members of the family held influential positions within the city's political and social circles.
During the Renaissance period, the DELRASO name gained further prominence with notable individuals such as Ludovico DELRASO, a renowned architect and sculptor who was born in Florence in 1492. His works can be found in various churches and palaces throughout Italy, and he is widely regarded as a master of the Renaissance architectural style.
Another notable figure bearing the DELRASO surname was Girolamo DELRASO, a Florentine humanist and scholar who lived during the 16th century. He was known for his contributions to the study of classical literature and his extensive writings on various philosophical and literary topics.
In the 17th century, the DELRASO family expanded beyond Tuscany, with branches establishing themselves in other regions of Italy, such as Rome and Naples. One prominent member from this period was Ottavio DELRASO, a celebrated painter who was active in Rome during the Baroque era.
As the centuries passed, the DELRASO name continued to be associated with notable individuals across various fields, including the arts, academia, and politics. While the surname may have evolved in its spelling or pronunciation over time, its Italian roots and rich historical legacy have remained intact.
Demographics
Ancestry and ethnicity for Delraso
Among Census respondents with the surname Delraso, the largest self-reported group is White at 66.4%. The next largest groups are Hispanic (29.2%) and Two or More Races (2.7%).
The bar chart below shows how Delraso 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 Delraso surname at the time of the 2020 Census, not any inherent property of the name itself.
- White66.4% · 75
- Hispanic or Latino29.2% · 33
- Two or more races2.7% · 3
- Black or African American0.9% · 1
- Asian and Pacific Islander0.9% · 1
Timeline
Historical Census data for Delraso
Delraso 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
#151,532
National surname rank
Recorded bearers 108
-2 bearers (-1.8%)
Per 100,000 0.04
Rank movement Down 11,775 places
2020
#147,221
National surname rank
Recorded bearers 113
+5 bearers (+4.6%)
Per 100,000 0.04
Rank movement Up 4,311 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #139,757 | 110 | 0.04 | First available Census row | First available Census row |
| 2010 | #151,532 | 108 | 0.04 | -2 bearers (-1.8%) | Down 11,775 places |
| 2020 | #147,221 | 113 | 0.04 | +5 bearers (+4.6%) | Up 4,311 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 Delraso 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 | #151,532 | #147,221 | 2.8% |
| Count | 108 | 113 | 4.6% |
| Per 100K | 0.04 | 0.04 | -5.5% |
Between the 2010 and 2020 Census, the number of Delraso bearers went from 108 to 113 (+4.6% change). The surname moved up 4,311 positions in the national ranking, going from #151,532 to #147,221.
FAQ
Delraso surname: questions and answers
How many people in the U.S. have the surname Delraso?
Name Census estimates that about 130 living Americans carry the surname Delraso. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
How common is Delraso?
Delraso ranks #147,221 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 113 people with the surname Delraso. That is different from the site's living-bearer estimate (130), 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 Delraso.
Has Delraso become more or less common over time?
Between 2010 and 2020, the surname Delraso went from 108 recorded bearers to 113. That is an increase of 5 (+4.6%). In the national ranking it rose from #151,532 to #147,221.
What does the Census say about the background of Delraso?
Among Census respondents with the surname Delraso, the largest self-reported group is White at 66.4%. The next largest groups are Hispanic (29.2%) and Two or More Races (2.7%). 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 Delraso in the 2020 Census, accounting for 66.4% (75 people in the source table).
What is the full ancestry breakdown?
Delraso appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (66.4%), Hispanic (29.2%), Two or More Races (2.7%). 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 Delraso (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 Delraso mean?
An Italian occupational surname referring to someone who sheared cloth. 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 Delraso (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 have the surname Delraso?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.