2000
#127,186
National surname rank
First available Census row
An Italian surname meaning "from Dell'Indotto", an area near Parma.
According to the 2020 US Census Bureau surname tables, roughly 125 Americans carry the last name Deldotto. That puts it at #150,205 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,742,035 residents).
This page is the full Name Census profile for the Deldotto 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
125
1 in 2,742,035
Census rank
#150,205
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
109
very rare in the US
Popularity narrative
The Census Bureau recorded 109 bearers of the surname Deldotto in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 150205th position in the national surname ranking.
Among Census respondents with the surname Deldotto, the largest self-reported group is White at 93.6%. The next largest groups are Hispanic (2.8%) and Two or More Races (2.8%).
Origin
The surname DELDOTTO has its roots in the Italian language and is believed to have originated in the northern regions of Italy, particularly in the areas around the city of Venice. The name likely derived from the Italian phrase "del dotto," which translates to "of the learned" or "of the educated."
One of the earliest recorded instances of the name DELDOTTO can be found in a 14th-century manuscript from the Venetian Republic, where a certain Girolamo DELDOTTO is mentioned as a scholar and theologian. This suggests that the name may have initially been associated with individuals who were educated or held academic positions.
During the Renaissance period, the name DELDOTTO gained prominence in the city of Venice, where several members of the family held influential roles in the local government and participated in the city's vibrant cultural scene. One notable figure was Antonio DELDOTTO, a renowned painter and architect who lived from 1480 to 1542. His works can still be found adorning various churches and palaces throughout Venice.
In the 17th century, the DELDOTTO family expanded beyond the borders of Venice and established branches in other parts of Italy, as well as in neighboring countries. One such individual was Francesco DELDOTTO (1620-1687), a Jesuit priest and scholar who gained recognition for his work in the field of philosophy and theology.
The name DELDOTTO also appeared in historical records from the 18th and 19th centuries, often associated with individuals involved in academia, law, and the arts. One notable example is Giulio DELDOTTO (1758-1824), a renowned jurist and legal scholar who served as a judge in the courts of Milan.
Another significant figure bearing the DELDOTTO name was Lorenzo DELDOTTO (1810-1882), a celebrated Italian composer and conductor who made significant contributions to the world of opera and classical music. His works were performed in some of the most prestigious opera houses across Europe.
Throughout its history, the surname DELDOTTO has maintained a connection to intellectual pursuits and education, reflecting the origins of the name itself. While the name may have evolved and spread to different regions over time, its roots in the scholarly traditions of northern Italy remain a integral part of its legacy.
Demographics
Among Census respondents with the surname Deldotto, the largest self-reported group is White at 93.6%. The next largest groups are Hispanic (2.8%) and Two or More Races (2.8%).
The bar chart below shows how Deldotto 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 Deldotto surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Deldotto 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.
2000
National surname rank
First available Census row
2010
National surname rank
-12 bearers (-9.7%)
2020
National surname rank
-3 bearers (-2.7%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #127,186 | 124 | 0.05 | First available Census row | First available Census row |
| 2010 | #147,253 | 112 | 0.04 | -12 bearers (-9.7%) | Down 20,067 places |
| 2020 | #150,205 | 109 | 0.04 | -3 bearers (-2.7%) | Down 2,952 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
How has the Deldotto surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #147,253 | #150,205 | -2.0% |
| Count | 112 | 109 | -2.7% |
| Per 100K | 0.04 | 0.04 | -8.8% |
Between the 2010 and 2020 Census, the number of Deldotto bearers went from 112 to 109 (-2.7% change). The surname moved down 2,952 positions in the national ranking, going from #147,253 to #150,205.
FAQ
Name Census estimates that about 125 living Americans carry the surname Deldotto. Using the current population baseline, that works out to roughly 1 in 2,742,035 residents.
Deldotto ranks #150,205 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.
The raw 2020 Census file counted 109 people with the surname Deldotto. That is different from the site's living-bearer estimate (125), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
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 Deldotto.
Between 2010 and 2020, the surname Deldotto went from 112 recorded bearers to 109. That is a decrease of 3 (-2.7%). In the national ranking it fell from #147,253 to #150,205.
Among Census respondents with the surname Deldotto, the largest self-reported group is White at 93.6%. The next largest groups are Hispanic (2.8%) and Two or More Races (2.8%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
White is the largest self-reported group for the surname Deldotto in the 2020 Census, accounting for 93.6% (102 people in the source table).
Deldotto appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.6%), Hispanic (2.8%), Two or More Races (2.8%). 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.
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 Deldotto (2000, 2010, 2020).
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.
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.
An Italian surname meaning "from Dell'Indotto", an area near Parma. The fuller origin note on this page goes into more detail.
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.
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 Deldotto (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.
Find out how many people have the surname Deldotto on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.