2000
#130,443
National surname rank
Recorded bearers 120
First available Census row
Per 100,000 0.04
Very Rare Last name
Diguiseppi
An Italian surname derived from the name "Giuseppe" referring to a son or descendant of Giuseppe.
According to the 2020 US Census Bureau surname tables, roughly 116 Americans carry the last name Diguiseppi. That puts it at #155,270 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,954,779 residents).
This page is the full Name Census profile for the Diguiseppi 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
116
1 in 2,954,779
Census rank
#155,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
101
very rare in the US
Popularity narrative
The Census Bureau recorded 101 bearers of the surname Diguiseppi in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 155270th position in the national surname ranking.
Among Census respondents with the surname Diguiseppi, the largest self-reported group is White at 92.1%. The next largest groups are Hispanic (5.0%) and Two or More Races (3.0%).
Origin
Meaning and origin of Diguiseppi
The surname DIGUISEPPI is of Italian origin, derived from the phrase "di Giuseppe" which translates to "son of Joseph" or "of Joseph". This surname emerged during the late medieval period in Italy, particularly in regions like Sicily, Calabria, and Naples.
The name's roots can be traced back to the widespread practice of adopting patronymic surnames during the Middle Ages. As cities and populations grew, the need for more specific identification led to the adoption of surnames based on a person's father's given name, in this case, Giuseppe (Joseph).
One of the earliest known records of the DIGUISEPPI surname can be found in Sicilian documents from the 14th century, where it was often spelled as "Di Iusepe" or "Di Iuseppi". These variations reflect the linguistic evolution of the name and the regional dialects of the time.
In the 16th century, the DIGUISEPPI family gained prominence in the city of Palermo, Sicily. Notable members include Antonio DIGUISEPPI (1510-1578), a renowned artist and sculptor who contributed to the decoration of several churches in the city.
During the 17th century, the DIGUISEPPI name spread beyond Sicily, with records indicating families bearing the surname in Naples and other parts of southern Italy. One notable figure from this era was Giovanni DIGUISEPPI (1630-1698), a Neapolitan priest and scholar known for his contributions to the study of ancient Greek texts.
In the 18th century, the DIGUISEPPI surname gained further recognition with the birth of Domenico DIGUISEPPI (1725-1793), a celebrated composer and violinist from Palermo. His works were performed across Europe and influenced the development of Italian baroque music.
As the 19th century dawned, the DIGUISEPPI family expanded its reach, with members settling in various parts of Italy and even emigrating to other countries. One notable figure from this era was Guglielmo DIGUISEPPI (1845-1912), a Sicilian-born engineer who played a pivotal role in the construction of several major infrastructure projects in Italy and South America.
Throughout the centuries, the DIGUISEPPI surname has been carried by numerous individuals who have made their mark in various fields, including the arts, academia, and public service. While the name's origins can be traced back to medieval Italy, its legacy continues to endure, reflecting the rich cultural heritage and contributions of those who bear this enduring surname.
Demographics
Ancestry and ethnicity for Diguiseppi
Among Census respondents with the surname Diguiseppi, the largest self-reported group is White at 92.1%. The next largest groups are Hispanic (5.0%) and Two or More Races (3.0%).
The bar chart below shows how Diguiseppi 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 Diguiseppi surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.1% · 93
- Hispanic or Latino5.0% · 5
- Two or more races3.0% · 3
Timeline
Historical Census data for Diguiseppi
Diguiseppi 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
#137,327
National surname rank
Recorded bearers 122
+2 bearers (+1.7%)
Per 100,000 0.04
Rank movement Down 6,884 places
2020
#155,270
National surname rank
Recorded bearers 101
-21 bearers (-17.2%)
Per 100,000 0.03
Rank movement Down 17,943 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #130,443 | 120 | 0.04 | First available Census row | First available Census row |
| 2010 | #137,327 | 122 | 0.04 | +2 bearers (+1.7%) | Down 6,884 places |
| 2020 | #155,270 | 101 | 0.03 | -21 bearers (-17.2%) | Down 17,943 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 Diguiseppi 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 | #137,327 | #155,270 | -13.1% |
| Count | 122 | 101 | -17.2% |
| Per 100K | 0.04 | 0.03 | -15.5% |
Between the 2010 and 2020 Census, the number of Diguiseppi bearers went from 122 to 101 (-17.2% change). The surname moved down 17,943 positions in the national ranking, going from #137,327 to #155,270.
FAQ
Diguiseppi surname: questions and answers
How many people in the U.S. have the surname Diguiseppi?
Name Census estimates that about 116 living Americans carry the surname Diguiseppi. Using the current population baseline, that works out to roughly 1 in 2,954,779 residents.
How common is Diguiseppi?
Diguiseppi ranks #155,270 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 101 people with the surname Diguiseppi. That is different from the site's living-bearer estimate (116), 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 Diguiseppi.
Has Diguiseppi become more or less common over time?
Between 2010 and 2020, the surname Diguiseppi went from 122 recorded bearers to 101. That is a decrease of 21 (-17.2%). In the national ranking it fell from #137,327 to #155,270.
What does the Census say about the background of Diguiseppi?
Among Census respondents with the surname Diguiseppi, the largest self-reported group is White at 92.1%. The next largest groups are Hispanic (5.0%) and Two or More Races (3.0%). 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 Diguiseppi in the 2020 Census, accounting for 92.1% (93 people in the source table).
What is the full ancestry breakdown?
Diguiseppi appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.1%), Hispanic (5.0%), Two or More Races (3.0%). 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 Diguiseppi (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 Diguiseppi mean?
An Italian surname derived from the name "Giuseppe" referring to a son or descendant of Giuseppe. 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 Diguiseppi (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 common is the surname Diguiseppi?
You can see how many Americans have the surname Diguiseppi on our sister site HowManyOfMe.org — same data roots, lighter UI.