2000
#25,945
National surname rank
Recorded bearers 889
First available Census row
Per 100,000 0.33
Rare Last name
Julio
A surname originating from the Roman personal name Julius or the month of July.
According to the 2020 US Census Bureau surname tables, roughly 1,545 Americans carry the last name Julio. That puts it at #19,987 in the national surname ranking, appearing at a frequency of 0.45 per 100,000 people (about 1 in 221,847 residents).
This page is the full Name Census profile for the Julio 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
1.5K
1 in 221,847
Census rank
#19,987
2020 decennial data
Per 100,000
0.5
Frequency rate
Recorded bearers
1.3K
rare in the US
Popularity narrative
The Census Bureau recorded 1,347 bearers of the surname Julio in its 2020 decennial surname file. At a rate of 0.45 per 100,000 residents, it holds the 19987th position in the national surname ranking.
Among Census respondents with the surname Julio, the largest self-reported group is Hispanic at 54.0%. The next largest groups are White (28.0%) and Asian/Pacific Islander (11.3%).
Origin
Meaning and origin of Julio
The surname Julio is of Spanish origin, derived from the Roman name Julius, which was a common name during the Roman Empire. The name Julius is believed to have originated from the Latin word "ioulos," meaning "downy-bearded" or "youth."
Julio can be traced back to the 8th century in the Iberian Peninsula, where it was initially used as a given name by the Visigoths and later adopted as a surname during the Middle Ages. The earliest known record of the surname Julio appears in the "Fuero de Burgos," a 13th-century legal code from the city of Burgos, in northern Spain.
During the Reconquista, the Christian reconquest of the Iberian Peninsula from the Moors, the surname Julio gained prominence as it was associated with several notable military leaders and nobles who fought against the Moors. One such figure was Don Julio de Castilla, a 12th-century knight who participated in the Battle of Las Navas de Tolosa in 1212.
The surname Julio is also linked to several place names in Spain, such as Julioalba (now known as Julialba) and Juliorapido, which may have influenced the adoption of the surname in those regions. Additionally, the name Julio has been recorded in various historical documents and manuscripts, including the "Libro de Armería" (Book of Heraldry) from the 15th century.
Notable individuals throughout history who bore the surname Julio include:
1. Julio Romero de Torres (1874-1930), a Spanish painter known for his romantic and symbolist works.
2. Julio Cortázar (1914-1984), an Argentine writer and intellectual, best known for his experimental novel "Rayuela" (Hopscotch).
3. Julio César Turrini (1916-2004), an Argentine football player and manager who played for clubs like River Plate and Boca Juniors.
4. Julio Bocca (born 1967), an Argentine ballet dancer and choreographer, considered one of the greatest male dancers of his generation.
5. Julio Iglesias (born 1943), a Spanish singer and songwriter who has sold over 300 million records worldwide.
The surname Julio has endured throughout the centuries, reflecting its rich historical roots and cultural significance within the Spanish-speaking world.
Demographics
Ancestry and ethnicity for Julio
Among Census respondents with the surname Julio, the largest self-reported group is Hispanic at 54.0%. The next largest groups are White (28.0%) and Asian/Pacific Islander (11.3%).
The bar chart below shows how Julio 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 Julio surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino54.0% · 728
- White28.0% · 377
- Asian and Pacific Islander11.3% · 152
- Black or African American3.4% · 46
- Two or more races2.8% · 38
- American Indian and Alaska Native0.4% · 6
Timeline
Historical Census data for Julio
Julio 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
#22,113
National surname rank
Recorded bearers 1,170
+281 bearers (+31.6%)
Per 100,000 0.40
Rank movement Up 3,832 places
2020
#19,987
National surname rank
Recorded bearers 1,347
+177 bearers (+15.1%)
Per 100,000 0.45
Rank movement Up 2,126 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #25,945 | 889 | 0.33 | First available Census row | First available Census row |
| 2010 | #22,113 | 1,170 | 0.40 | +281 bearers (+31.6%) | Up 3,832 places |
| 2020 | #19,987 | 1,347 | 0.45 | +177 bearers (+15.1%) | Up 2,126 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 Julio 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 | #22,113 | #19,987 | 9.6% |
| Count | 1,170 | 1,347 | 15.1% |
| Per 100K | 0.40 | 0.45 | 12.7% |
Between the 2010 and 2020 Census, the number of Julio bearers went from 1,170 to 1,347 (+15.1% change). The surname moved up 2,126 positions in the national ranking, going from #22,113 to #19,987.
Notable bearers
Famous people with the surname Julio
FAQ
Julio surname: questions and answers
How many people in the U.S. have the surname Julio?
Name Census estimates that about 1,545 living Americans carry the surname Julio. Using the current population baseline, that works out to roughly 1 in 221,847 residents.
How common is Julio?
Julio ranks #19,987 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.45 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 1,347 people with the surname Julio. That is different from the site's living-bearer estimate (1,545), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.45 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.45 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 Julio.
Has Julio become more or less common over time?
Between 2010 and 2020, the surname Julio went from 1,170 recorded bearers to 1,347. That is an increase of 177 (+15.1%). In the national ranking it rose from #22,113 to #19,987.
What does the Census say about the background of Julio?
Among Census respondents with the surname Julio, the largest self-reported group is Hispanic at 54.0%. The next largest groups are White (28.0%) and Asian/Pacific Islander (11.3%). 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?
Hispanic is the largest self-reported group for the surname Julio in the 2020 Census, accounting for 54.0% (728 people in the source table).
What is the full ancestry breakdown?
Julio appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (54.0%), White (28.0%), Asian/Pacific Islander (11.3%). 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 Julio (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 Julio mean?
A surname originating from the Roman personal name Julius or the month of July. 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 Julio (0.45 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 are called Julio?
See how common the surname Julio is on HowManyOfMe.org, our sister site built around that single question.