2000
#141,788
National surname rank
Recorded bearers 108
First available Census row
Per 100,000 0.04
Very Rare Last name
Dilieto
An Italian surname likely derived from a place name or indicating one who hails from a specific locale.
According to the 2020 US Census Bureau surname tables, roughly 115 Americans carry the last name Dilieto. That puts it at #155,682 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,980,473 residents).
This page is the full Name Census profile for the Dilieto 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
115
1 in 2,980,473
Census rank
#155,682
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
100
very rare in the US
Popularity narrative
The Census Bureau recorded 100 bearers of the surname Dilieto in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 155682nd position in the national surname ranking.
Among Census respondents with the surname Dilieto, the largest self-reported group is White at 95.0%. The next largest groups are Two or More Races (3.0%) and Black (1.0%).
Origin
Meaning and origin of Dilieto
The surname DILIETO originated in Italy during the medieval period, likely in the regions of Campania or Basilicata. It is derived from the Italian phrase "di lieto," which translates to "of joy" or "of happiness." This suggests that the name may have been initially bestowed upon someone with a cheerful or joyful disposition.
The earliest recorded instances of the DILIETO surname can be traced back to the 13th century, where it appeared in various legal documents and church records from the Kingdom of Naples. It is believed that the name may have initially been associated with a specific location or town, as was common with many Italian surnames during that era.
One of the earliest known bearers of the DILIETO name was Girolamo Dilieto, a renowned philosopher and theologian who lived in Naples during the 15th century. He authored several influential works on ethics and moral philosophy, and his writings were widely studied throughout Italy and Europe.
In the 16th century, the DILIETO family gained prominence in the city of Salerno, where they were involved in various trades and professions. Notable individuals from this time period include Antonio Dilieto, a skilled artisan known for his intricate woodcarvings, and Lucrezia Dilieto, a respected educator who established one of the first schools for girls in the region.
During the 17th century, the DILIETO name spread to other parts of Italy, with branches of the family settling in cities such as Rome and Florence. One notable figure from this era was Giovanni Battista Dilieto, a celebrated artist who specialized in Renaissance-style frescoes and murals. His works can still be admired in several churches and palaces throughout Italy.
In the 18th century, the DILIETO family produced several notable figures in the field of music and opera. Among them was Antonio Dilieto, a renowned composer and conductor who worked for various noble courts across Europe. His compositions, including operas and chamber works, were highly regarded and performed throughout the continent.
Another significant bearer of the DILIETO name was Giulia Dilieto, a revolutionary activist who played a pivotal role in the Italian unification movement during the 19th century. She was a close associate of Giuseppe Garibaldi and participated in several key battles and uprisings against foreign occupation.
Throughout its history, the DILIETO surname has been associated with individuals from various professions and backgrounds, including artists, scholars, musicians, and political figures. While the name originated in Italy, it has since spread to other parts of the world due to migration and diaspora, carrying with it a rich cultural heritage and legacy.
Demographics
Ancestry and ethnicity for Dilieto
Among Census respondents with the surname Dilieto, the largest self-reported group is White at 95.0%. The next largest groups are Two or More Races (3.0%) and Black (1.0%).
The bar chart below shows how Dilieto 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 Dilieto surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.0% · 95
- Two or more races3.0% · 3
- Black or African American1.0% · 1
- Hispanic or Latino1.0% · 1
Timeline
Historical Census data for Dilieto
Dilieto 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
#148,347
National surname rank
Recorded bearers 111
+3 bearers (+2.8%)
Per 100,000 0.04
Rank movement Down 6,559 places
2020
#155,682
National surname rank
Recorded bearers 100
-11 bearers (-9.9%)
Per 100,000 0.03
Rank movement Down 7,335 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #141,788 | 108 | 0.04 | First available Census row | First available Census row |
| 2010 | #148,347 | 111 | 0.04 | +3 bearers (+2.8%) | Down 6,559 places |
| 2020 | #155,682 | 100 | 0.03 | -11 bearers (-9.9%) | Down 7,335 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 Dilieto 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 | #148,347 | #155,682 | -4.9% |
| Count | 111 | 100 | -9.9% |
| Per 100K | 0.04 | 0.03 | -16.4% |
Between the 2010 and 2020 Census, the number of Dilieto bearers went from 111 to 100 (-9.9% change). The surname moved down 7,335 positions in the national ranking, going from #148,347 to #155,682.
FAQ
Dilieto surname: questions and answers
How many people in the U.S. have the surname Dilieto?
Name Census estimates that about 115 living Americans carry the surname Dilieto. Using the current population baseline, that works out to roughly 1 in 2,980,473 residents.
How common is Dilieto?
Dilieto ranks #155,682 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 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 100 people with the surname Dilieto. That is different from the site's living-bearer estimate (115), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Dilieto.
Has Dilieto become more or less common over time?
Between 2010 and 2020, the surname Dilieto went from 111 recorded bearers to 100. That is a decrease of 11 (-9.9%). In the national ranking it fell from #148,347 to #155,682.
What does the Census say about the background of Dilieto?
Among Census respondents with the surname Dilieto, the largest self-reported group is White at 95.0%. The next largest groups are Two or More Races (3.0%) and Black (1.0%). 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 Dilieto in the 2020 Census, accounting for 95.0% (95 people in the source table).
What is the full ancestry breakdown?
Dilieto appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.0%), Two or More Races (3.0%), Black (1.0%). 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 Dilieto (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 Dilieto mean?
An Italian surname likely derived from a place name or indicating one who hails from a specific locale. 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 Dilieto (0.03 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 Dilieto?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.