2000
#5,763
National surname rank
Recorded bearers 5,501
First available Census row
Per 100,000 2.04
Rare Last name
Deltoro
A Spanish surname referring to someone who lived near a bull ring or worked with bulls.
According to the 2020 US Census Bureau surname tables, roughly 8,173 Americans carry the last name Deltoro. That puts it at #4,808 in the national surname ranking, appearing at a frequency of 2.38 per 100,000 people (about 1 in 41,937 residents).
This page is the full Name Census profile for the Deltoro 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
8.2K
1 in 41,937
Census rank
#4,808
2020 decennial data
Per 100,000
2.4
Frequency rate
Recorded bearers
7.1K
rare in the US
Popularity narrative
The Census Bureau recorded 7,127 bearers of the surname Deltoro in its 2020 decennial surname file. At a rate of 2.38 per 100,000 residents, it holds the 4808th position in the national surname ranking.
Among Census respondents with the surname Deltoro, the largest self-reported group is Hispanic at 92.6%. The next largest groups are White (6.3%) and Two or More Races (0.4%).
Origin
Meaning and origin of Deltoro
The surname DELTORO is of Spanish origin, believed to have first emerged in the region of Andalusia, southern Spain, during the 15th century. It is thought to be derived from a combination of the Spanish words "del" meaning "of" or "from", and "toro", meaning "bull". This suggests the name may have originally referred to someone who lived near or worked with bulls, perhaps a rancher or breeder.
One of the earliest recorded instances of the DELTORO surname can be found in a 1492 census record from the city of Seville, where a Juan Deltoro is listed as a landowner. There are also references to a Diego Deltoro, a soldier who fought in the Spanish conquest of the Americas in the early 16th century.
In the 17th century, the name appears in various church records and legal documents from the towns of Córdoba and Granada, indicating the DELTORO family had spread throughout Andalusia. During this time, the spelling variations "De Toro" and "DeToro" were also common.
A notable DELTORO from this era was Alonso Deltoro, a renowned artist and sculptor born in Málaga in 1627, known for his intricate woodcarvings adorning many churches in southern Spain. He died in 1701.
In the 19th century, the DELTORO surname began to appear more widely across Spain, as well as in Spanish colonies in the Americas. Juan Carlos Deltoro, born in Cádiz in 1812, was a prominent lawyer and politician who served as a member of the Spanish Parliament in the 1860s.
Other notable individuals with the DELTORO surname include María Deltoro (1845-1916), a celebrated opera singer from Madrid, and Emilio Deltoro (1878-1949), a Spanish military officer who fought in the Spanish-American War and later became a general in the Spanish Civil War.
As the DELTORO family spread throughout the Spanish-speaking world, variations in spelling and pronunciation emerged, such as "Del Toro" and "Deltorro". However, the name's connection to its Andalusian roots and the Spanish word for "bull" has remained a consistent thread throughout its history.
Demographics
Ancestry and ethnicity for Deltoro
Among Census respondents with the surname Deltoro, the largest self-reported group is Hispanic at 92.6%. The next largest groups are White (6.3%) and Two or More Races (0.4%).
The bar chart below shows how Deltoro 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 Deltoro surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino92.6% · 6,603
- White6.3% · 449
- Two or more races0.4% · 32
- Asian and Pacific Islander0.3% · 23
- Black or African American0.2% · 13
- American Indian and Alaska Native0.1% · 7
Timeline
Historical Census data for Deltoro
Deltoro 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
#4,862
National surname rank
Recorded bearers 7,251
+1,750 bearers (+31.8%)
Per 100,000 2.46
Rank movement Up 901 places
2020
#4,808
National surname rank
Recorded bearers 7,127
-124 bearers (-1.7%)
Per 100,000 2.38
Rank movement Up 54 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #5,763 | 5,501 | 2.04 | First available Census row | First available Census row |
| 2010 | #4,862 | 7,251 | 2.46 | +1,750 bearers (+31.8%) | Up 901 places |
| 2020 | #4,808 | 7,127 | 2.38 | -124 bearers (-1.7%) | Up 54 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 Deltoro 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 | #4,862 | #4,808 | 1.1% |
| Count | 7,251 | 7,127 | -1.7% |
| Per 100K | 2.46 | 2.38 | -3.1% |
Between the 2010 and 2020 Census, the number of Deltoro bearers went from 7,251 to 7,127 (-1.7% change). The surname moved up 54 positions in the national ranking, going from #4,862 to #4,808.
Notable bearers
Famous people with the surname Deltoro
FAQ
Deltoro surname: questions and answers
How many people in the U.S. have the surname Deltoro?
Name Census estimates that about 8,173 living Americans carry the surname Deltoro. Using the current population baseline, that works out to roughly 1 in 41,937 residents.
How common is Deltoro?
Deltoro ranks #4,808 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 2.38 per 100,000 residents, which is about 2 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 7,127 people with the surname Deltoro. That is different from the site's living-bearer estimate (8,173), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 2.38 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 2.38 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 2 of them to have the surname Deltoro.
Has Deltoro become more or less common over time?
Between 2010 and 2020, the surname Deltoro went from 7,251 recorded bearers to 7,127. That is a decrease of 124 (-1.7%). In the national ranking it rose from #4,862 to #4,808.
What does the Census say about the background of Deltoro?
Among Census respondents with the surname Deltoro, the largest self-reported group is Hispanic at 92.6%. The next largest groups are White (6.3%) and Two or More Races (0.4%). 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?
Hispanic is the largest self-reported group for the surname Deltoro in the 2020 Census, accounting for 92.6% (6,603 people in the source table).
What is the full ancestry breakdown?
Deltoro appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (92.6%), White (6.3%), Two or More Races (0.4%). 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 Deltoro (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 Deltoro mean?
A Spanish surname referring to someone who lived near a bull ring or worked with bulls. 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 Deltoro (2.38 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 Deltoro?
See how many people have the last name Deltoro on HowManyOfMe.org, our sister site built around that single question.