2010
#148,347
National surname rank
Recorded bearers 111
First available Census row
Per 100,000 0.04
Very Rare Last name
Dilucchio
An Italian surname derived from the phrase "di luce" meaning "of light".
According to the 2020 US Census Bureau surname tables, roughly 117 Americans carry the last name Dilucchio. That puts it at #154,755 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,929,524 residents).
This page is the full Name Census profile for the Dilucchio 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
117
1 in 2,929,524
Census rank
#154,755
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
102
very rare in the US
Popularity narrative
The Census Bureau recorded 102 bearers of the surname Dilucchio in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154755th position in the national surname ranking.
Among Census respondents with the surname Dilucchio, the largest self-reported group is White at 83.3%. The next largest groups are Two or More Races (6.9%) and Black (3.9%).
Origin
Meaning and origin of Dilucchio
The surname DILUCCHIO has its roots in Italy, with the earliest known records dating back to the 14th century. It is believed to have originated from the Italian word "dilucchio," which means "deluge" or "flood." This suggests that the name may have been initially given to someone who lived near a river or an area prone to flooding.
The name was first documented in the regions of Campania and Calabria in southern Italy. Historical records show that it was often spelled as "Di Lucchio" or "Di Lucco" in its earlier forms, indicating a possible connection to a specific place name or locality.
One of the earliest known references to the name can be found in the Catasto Onciario, a land registry compiled in the Kingdom of Naples during the 15th century. This document lists several individuals with the surname DILUCCHIO or its variants, suggesting that the name was already established in the region by that time.
In the 16th century, a notable figure bearing the name DILUCCHIO was Giovanni Battista Dilucchio, a Neapolitan scholar and humanist who lived from 1532 to 1612. He was known for his contributions to the study of ancient Greek and Roman literature.
Another prominent individual with this surname was Antonio Dilucchio, a 17th-century painter from Naples who specialized in still-life and genre scenes. His works can be found in various museums and private collections across Italy.
During the 18th century, the DILUCCHIO family established itself in the town of Capaccio, near Salerno, where they were involved in agricultural and mercantile activities. One member of this family, Raffaele Dilucchio (1735-1812), served as a magistrate and held several prominent positions in the local government.
In the 19th century, Giuseppe Dilucchio (1820-1895) was a renowned sculptor from Bari, known for his intricate marble works and religious statues that adorned churches throughout southern Italy.
As the name spread beyond its original regions, it underwent various spellings and adaptations, such as "Di Lucio," "Di Luccio," and "Dilucco." However, the core form of DILUCCHIO remained prevalent, particularly in the areas of Campania and Calabria, where it continues to be a well-established surname today.
Demographics
Ancestry and ethnicity for Dilucchio
Among Census respondents with the surname Dilucchio, the largest self-reported group is White at 83.3%. The next largest groups are Two or More Races (6.9%) and Black (3.9%).
The bar chart below shows how Dilucchio 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 Dilucchio surname at the time of the 2020 Census, not any inherent property of the name itself.
- White83.3% · 85
- Two or more races6.9% · 7
- Black or African American3.9% · 4
- Hispanic or Latino3.9% · 4
- Asian and Pacific Islander1.0% · 1
- American Indian and Alaska Native1.0% · 1
Timeline
Historical Census data for Dilucchio
Dilucchio appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#154,755
National surname rank
Recorded bearers 102
-9 bearers (-8.1%)
Per 100,000 0.03
Rank movement Down 6,408 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #148,347 | 111 | 0.04 | First available Census row | First available Census row |
| 2020 | #154,755 | 102 | 0.03 | -9 bearers (-8.1%) | Down 6,408 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 Dilucchio 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 | #154,755 | -4.3% |
| Count | 111 | 102 | -8.1% |
| Per 100K | 0.04 | 0.03 | -14.7% |
Between the 2010 and 2020 Census, the number of Dilucchio bearers went from 111 to 102 (-8.1% change). The surname moved down 6,408 positions in the national ranking, going from #148,347 to #154,755.
FAQ
Dilucchio surname: questions and answers
How many people in the U.S. have the surname Dilucchio?
Name Census estimates that about 117 living Americans carry the surname Dilucchio. Using the current population baseline, that works out to roughly 1 in 2,929,524 residents.
How common is Dilucchio?
Dilucchio ranks #154,755 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 102 people with the surname Dilucchio. That is different from the site's living-bearer estimate (117), 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 Dilucchio.
Has Dilucchio become more or less common over time?
Between 2010 and 2020, the surname Dilucchio went from 111 recorded bearers to 102. That is a decrease of 9 (-8.1%). In the national ranking it fell from #148,347 to #154,755.
What does the Census say about the background of Dilucchio?
Among Census respondents with the surname Dilucchio, the largest self-reported group is White at 83.3%. The next largest groups are Two or More Races (6.9%) and Black (3.9%). 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 Dilucchio in the 2020 Census, accounting for 83.3% (85 people in the source table).
What is the full ancestry breakdown?
Dilucchio appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (83.3%), Two or More Races (6.9%), Black (3.9%). 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 Dilucchio (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 Dilucchio mean?
An Italian surname derived from the phrase "di luce" meaning "of light". 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 Dilucchio (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 Americans have the surname Dilucchio?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.