2010
#142,108
National surname rank
First available Census row
Of Spanish origin, meaning "of the vicar" or "belonging to the vicar."
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Delvicario. That puts it at #147,221 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,636,572 residents).
This page is the full Name Census profile for the Delvicario 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
130
1 in 2,636,572
Census rank
#147,221
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
113
very rare in the US
Popularity narrative
The Census Bureau recorded 113 bearers of the surname Delvicario in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147221st position in the national surname ranking.
Among Census respondents with the surname Delvicario, the largest self-reported group is White at 92.0%. The next largest groups are Two or More Races (3.5%) and Hispanic (1.8%).
Origin
The surname DELVICARIO has its origins in Italy, specifically in the northern regions of the country, and can be traced back to the late medieval period, around the 13th or 14th century. The name is believed to be derived from the Italian words "del" meaning "of" or "from," and "vicario," which refers to a vicar or a deputy, suggesting that the earliest bearers of this name may have been associated with ecclesiastical or administrative positions.
One of the earliest recorded instances of the surname DELVICARIO can be found in historical documents from the city of Milan, where the name appears in records dating back to the late 14th century. During this period, the DELVICARIO family was known to have held influential positions within the local clergy and administrative bodies.
In the 15th century, the name DELVICARIO gained prominence in the region of Veneto, particularly in the city of Venice. Here, the family was recognized as prominent merchants and traders, with several members holding influential positions within the city's mercantile guilds.
A notable figure bearing the surname DELVICARIO was Giovanni Battista Delvicario (1490-1558), a renowned scholar and humanist from Verona. He was known for his contributions to the study of classical literature and his extensive writings on subjects ranging from philosophy to theology.
Another prominent individual with this surname was Antonio Delvicario (1570-1638), a Venetian architect and engineer who was responsible for the design and construction of several notable buildings and fortifications in the region.
In the 17th century, the DELVICARIO family expanded their influence to other parts of Italy, with branches establishing themselves in cities such as Rome and Naples. One noteworthy member from this period was Carlo Delvicario (1625-1702), a renowned painter and fresco artist who worked on numerous religious commissions throughout Italy.
The surname DELVICARIO also found its way into the annals of Italian literature, with the writer and poet Girolamo Delvicario (1730-1808) from Verona gaining recognition for his works, which often explored themes of love, nature, and Italian identity.
Another figure of historical significance was Giuseppe Delvicario (1805-1875), a prominent lawyer and politician from Milan who played a pivotal role in the Italian unification movement, serving as a member of the Sardinian Parliament and later as a senator in the newly unified Kingdom of Italy.
Demographics
Among Census respondents with the surname Delvicario, the largest self-reported group is White at 92.0%. The next largest groups are Two or More Races (3.5%) and Hispanic (1.8%).
The bar chart below shows how Delvicario 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 Delvicario surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Delvicario 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.
2010
National surname rank
First available Census row
2020
National surname rank
-4 bearers (-3.4%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #142,108 | 117 | 0.04 | First available Census row | First available Census row |
| 2020 | #147,221 | 113 | 0.04 | -4 bearers (-3.4%) | Down 5,113 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 Delvicario 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 | #142,108 | #147,221 | -3.6% |
| Count | 117 | 113 | -3.4% |
| Per 100K | 0.04 | 0.04 | -5.5% |
Between the 2010 and 2020 Census, the number of Delvicario bearers went from 117 to 113 (-3.4% change). The surname moved down 5,113 positions in the national ranking, going from #142,108 to #147,221.
FAQ
Name Census estimates that about 130 living Americans carry the surname Delvicario. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
Delvicario ranks #147,221 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 113 people with the surname Delvicario. That is different from the site's living-bearer estimate (130), 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 Delvicario.
Between 2010 and 2020, the surname Delvicario went from 117 recorded bearers to 113. That is a decrease of 4 (-3.4%). In the national ranking it fell from #142,108 to #147,221.
Among Census respondents with the surname Delvicario, the largest self-reported group is White at 92.0%. The next largest groups are Two or More Races (3.5%) and Hispanic (1.8%). 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 Delvicario in the 2020 Census, accounting for 92.0% (104 people in the source table).
Delvicario appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.0%), Two or More Races (3.5%), Hispanic (1.8%). 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 Delvicario (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.
Of Spanish origin, meaning "of the vicar" or "belonging to the vicar." 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 Delvicario (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.
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.