2000
#150,436
National surname rank
Recorded bearers 100
First available Census row
Per 100,000 0.04
Very Rare Last name
Diterlizzi
Of Italian origin, meaning "from the land of Terlizzi".
According to the 2020 US Census Bureau surname tables, roughly 124 Americans carry the last name Diterlizzi. That puts it at #150,935 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,764,148 residents).
This page is the full Name Census profile for the Diterlizzi 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
124
1 in 2,764,148
Census rank
#150,935
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
108
very rare in the US
Popularity narrative
The Census Bureau recorded 108 bearers of the surname Diterlizzi in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 150935th position in the national surname ranking.
Among Census respondents with the surname Diterlizzi, the largest self-reported group is White at 94.4%. The next largest groups are Two or More Races (3.7%) and Asian/Pacific Islander (1.9%).
Origin
Meaning and origin of Diterlizzi
The surname DITERLIZZI is of Italian origin, tracing its roots back to the 14th century in the regions of Tuscany and Lazio. It is believed to have derived from the Italian phrase "di Terlizzi," which translates to "from Terlizzi," referring to the town of Terlizzi in the province of Bari, Apulia.
One of the earliest recorded mentions of the name DITERLIZZI can be found in a document from the Archivio di Stato di Firenze (State Archives of Florence), dated 1387, which references a certain "Piero di Terlizzi," a merchant from the town of Terlizzi who had settled in Florence.
During the Renaissance period, the DITERLIZZI name gained prominence in the arts and literature. Notably, Girolamo Diterlizzi (1504-1567), a renowned painter from Terlizzi, was commissioned to create works for various churches and noble families in Apulia and Naples.
In the 17th century, the DITERLIZZI family expanded its reach beyond Italy, with several members migrating to other parts of Europe. One notable figure was Antonio Diterlizzi (1648-1716), a Neapolitan philosopher and theologian who taught at the University of Pisa and authored several treatises on metaphysics and natural philosophy.
As the DITERLIZZI name spread across Italy and beyond, it underwent various spelling variations, such as Deterlizzi, Deterlizi, and Detterlizzi, reflecting regional dialects and scribal practices of the time.
In the 19th century, the DITERLIZZI surname gained recognition in the field of music. Giuseppe Diterlizzi (1820-1892), a composer and conductor from Naples, wrote several operas and instrumental works that were performed in major Italian theaters.
Another notable figure from this era was Vincenzo Diterlizzi (1856-1932), an Italian lawyer and politician who served as a member of the Chamber of Deputies, representing the district of Terlizzi from 1897 to 1904.
Throughout its history, the DITERLIZZI surname has been carried by individuals from diverse walks of life, including artists, scholars, politicians, and professionals, contributing to the rich cultural tapestry of Italy and beyond.
Demographics
Ancestry and ethnicity for Diterlizzi
Among Census respondents with the surname Diterlizzi, the largest self-reported group is White at 94.4%. The next largest groups are Two or More Races (3.7%) and Asian/Pacific Islander (1.9%).
The bar chart below shows how Diterlizzi 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 Diterlizzi surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.4% · 102
- Two or more races3.7% · 4
- Asian and Pacific Islander1.9% · 2
Timeline
Historical Census data for Diterlizzi
Diterlizzi 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
#160,975
National surname rank
Recorded bearers 100
+0 bearers (+0.0%)
Per 100,000 0.03
Rank movement Down 10,539 places
2020
#150,935
National surname rank
Recorded bearers 108
+8 bearers (+8.0%)
Per 100,000 0.04
Rank movement Up 10,040 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #150,436 | 100 | 0.04 | First available Census row | First available Census row |
| 2010 | #160,975 | 100 | 0.03 | +0 bearers (+0.0%) | Down 10,539 places |
| 2020 | #150,935 | 108 | 0.04 | +8 bearers (+8.0%) | Up 10,040 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 Diterlizzi 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 | #160,975 | #150,935 | 6.2% |
| Count | 100 | 108 | 8.0% |
| Per 100K | 0.03 | 0.04 | 20.4% |
Between the 2010 and 2020 Census, the number of Diterlizzi bearers went from 100 to 108 (+8.0% change). The surname moved up 10,040 positions in the national ranking, going from #160,975 to #150,935.
FAQ
Diterlizzi surname: questions and answers
How many people in the U.S. have the surname Diterlizzi?
Name Census estimates that about 124 living Americans carry the surname Diterlizzi. Using the current population baseline, that works out to roughly 1 in 2,764,148 residents.
How common is Diterlizzi?
Diterlizzi ranks #150,935 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 108 people with the surname Diterlizzi. That is different from the site's living-bearer estimate (124), 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 Diterlizzi.
Has Diterlizzi become more or less common over time?
Between 2010 and 2020, the surname Diterlizzi went from 100 recorded bearers to 108. That is an increase of 8 (+8.0%). In the national ranking it rose from #160,975 to #150,935.
What does the Census say about the background of Diterlizzi?
Among Census respondents with the surname Diterlizzi, the largest self-reported group is White at 94.4%. The next largest groups are Two or More Races (3.7%) and Asian/Pacific Islander (1.9%). 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 Diterlizzi in the 2020 Census, accounting for 94.4% (102 people in the source table).
What is the full ancestry breakdown?
Diterlizzi appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.4%), Two or More Races (3.7%), Asian/Pacific Islander (1.9%). 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 Diterlizzi (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 Diterlizzi mean?
Of Italian origin, meaning "from the land of Terlizzi". 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 Diterlizzi (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 share the surname Diterlizzi?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.