2010
#154,907
National surname rank
Recorded bearers 105
First available Census row
Per 100,000 0.04
Very Rare Last name
Debastiani
An Italian surname derived from Saint Sebastian's name, indicating origins from or association with place names incorporating the saint's name.
According to the 2020 US Census Bureau surname tables, roughly 122 Americans carry the last name Debastiani. That puts it at #152,339 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,809,462 residents).
This page is the full Name Census profile for the Debastiani 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
122
1 in 2,809,462
Census rank
#152,339
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
106
very rare in the US
Popularity narrative
The Census Bureau recorded 106 bearers of the surname Debastiani in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 152339th position in the national surname ranking.
Among Census respondents with the surname Debastiani, the largest self-reported group is White at 84.9%. The next largest groups are Hispanic (7.5%) and Asian/Pacific Islander (2.8%).
Origin
Meaning and origin of Debastiani
The surname DEBASTIANI is of Italian origin, originating from the northern regions of Italy in the late medieval period. It is likely derived from the Italian words "de" meaning "from" and "bastiano," a variation of the name Sebastiano or Sebastian. This suggests that the name may have originated as a locational surname, indicating that the bearer or their ancestors came from a place associated with the name Sebastiano.
One of the earliest recorded instances of the name DEBASTIANI can be found in the records of the Republic of Venice during the 15th century. These records mention a family by the name of Debastiani who held prominent positions within the city's maritime and mercantile sectors. This suggests that the name was well-established in the Venetian region by this time.
In the 16th century, the name DEBASTIANI appeared in various historical documents and records throughout northern Italy, particularly in the regions of Veneto, Lombardy, and Emilia-Romagna. One notable figure was Giovanni Debastiani (1498-1564), a renowned architect and sculptor from Verona, who was commissioned to design several churches and public buildings in the city.
During the 17th and 18th centuries, the DEBASTIANI name continued to be prominent in various parts of northern Italy. One notable figure from this period was Antonio Debastiani (1642-1718), a Venetian painter and engraver who was renowned for his religious artwork and portraits.
In the 19th century, the DEBASTIANI surname began to spread beyond the borders of Italy as Italian emigrants sought new opportunities abroad. One such individual was Giuseppe Debastiani (1828-1901), a successful businessman and entrepreneur who established a thriving trading company in Buenos Aires, Argentina.
Another prominent figure with the DEBASTIANI surname was Enrico Debastiani (1868-1942), an Italian military officer and politician who served as a general during World War I and later became a member of the Italian Senate.
While the DEBASTIANI name may have evolved over time, with variations in spelling and pronunciation, its Italian roots and association with the name Sebastiano have remained consistent throughout its history. The name has been carried by individuals from various walks of life, including artists, businesspeople, and military leaders, further solidifying its place in Italian cultural and historical heritage.
Demographics
Ancestry and ethnicity for Debastiani
Among Census respondents with the surname Debastiani, the largest self-reported group is White at 84.9%. The next largest groups are Hispanic (7.5%) and Asian/Pacific Islander (2.8%).
The bar chart below shows how Debastiani 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 Debastiani surname at the time of the 2020 Census, not any inherent property of the name itself.
- White84.9% · 90
- Hispanic or Latino7.5% · 8
- Asian and Pacific Islander2.8% · 3
- Black or African American1.9% · 2
- Two or more races1.9% · 2
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Debastiani
Debastiani 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
#152,339
National surname rank
Recorded bearers 106
+1 bearers (+1.0%)
Per 100,000 0.04
Rank movement Up 2,568 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #154,907 | 105 | 0.04 | First available Census row | First available Census row |
| 2020 | #152,339 | 106 | 0.04 | +1 bearers (+1.0%) | Up 2,568 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 Debastiani 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 | #154,907 | #152,339 | 1.7% |
| Count | 105 | 106 | 1.0% |
| Per 100K | 0.04 | 0.04 | -11.3% |
Between the 2010 and 2020 Census, the number of Debastiani bearers went from 105 to 106 (+1.0% change). The surname moved up 2,568 positions in the national ranking, going from #154,907 to #152,339.
FAQ
Debastiani surname: questions and answers
How many people in the U.S. have the surname Debastiani?
Name Census estimates that about 122 living Americans carry the surname Debastiani. Using the current population baseline, that works out to roughly 1 in 2,809,462 residents.
How common is Debastiani?
Debastiani ranks #152,339 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 106 people with the surname Debastiani. That is different from the site's living-bearer estimate (122), 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 Debastiani.
Has Debastiani become more or less common over time?
Between 2010 and 2020, the surname Debastiani went from 105 recorded bearers to 106. That is an increase of 1 (+1.0%). In the national ranking it rose from #154,907 to #152,339.
What does the Census say about the background of Debastiani?
Among Census respondents with the surname Debastiani, the largest self-reported group is White at 84.9%. The next largest groups are Hispanic (7.5%) and Asian/Pacific Islander (2.8%). 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 Debastiani in the 2020 Census, accounting for 84.9% (90 people in the source table).
What is the full ancestry breakdown?
Debastiani appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (84.9%), Hispanic (7.5%), Asian/Pacific Islander (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.
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 Debastiani (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 Debastiani mean?
An Italian surname derived from Saint Sebastian's name, indicating origins from or association with place names incorporating the saint's name. 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 Debastiani (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 Americans have the surname Debastiani?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.