2000
#13,149
National surname rank
First available Census row
An Italian surname derived from the word "coniglio," meaning "rabbit," likely referring to a rabbit hunter or seller.
According to the 2020 US Census Bureau surname tables, roughly 2,150 Americans carry the last name Coniglio. That puts it at #15,103 in the national surname ranking, appearing at a frequency of 0.63 per 100,000 people (about 1 in 159,421 residents).
This page is the full Name Census profile for the Coniglio 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
2.1K
1 in 159,421
Census rank
#15,103
2020 decennial data
Per 100,000
0.6
Frequency rate
Recorded bearers
1.9K
rare in the US
Popularity narrative
The Census Bureau recorded 1,875 bearers of the surname Coniglio in its 2020 decennial surname file. At a rate of 0.63 per 100,000 residents, it holds the 15103rd position in the national surname ranking.
Among Census respondents with the surname Coniglio, the largest self-reported group is White at 90.4%. The next largest groups are Hispanic (5.5%) and Two or More Races (2.2%).
Origin
The surname Coniglio originates from Italy, specifically the regions of Emilia-Romagna, Tuscany, and Umbria. It derives from the Italian word "coniglio," meaning rabbit. The name likely emerged as a nickname or occupation-based surname in the 13th or 14th century, referring to someone who either resembled a rabbit, bred rabbits, or hunted them.
One of the earliest recorded instances of the Coniglio surname can be found in the Codice Diplomatico Padovano, a collection of medieval documents from the city of Padua, dating back to the early 14th century. The name is mentioned in a document from 1321, referring to a certain "Bonaccorso Coniglio."
In the 15th century, the Coniglio name appeared in several historical records from the city of Florence. A notable figure from this time was Niccolò Coniglio, a wealthy merchant and banker who lived between 1420 and 1495. He played a significant role in the city's economic and political affairs during the Renaissance period.
Another prominent individual with the Coniglio surname was Girolamo Coniglio, a renowned artist and sculptor from Padua who lived from 1520 to 1593. His works can be found in various churches and buildings throughout Northern Italy, including the Basilica of St. Anthony in Padua.
In the 17th century, the Coniglio family had a presence in the Kingdom of Naples, where they were involved in the legal profession. One notable figure was Giulio Cesare Coniglio, a lawyer and judge who lived from 1645 to 1712. He served as a magistrate in the city of Naples and was known for his legal expertise.
The Coniglio surname also has connections to the island of Sicily, particularly in the town of Catania. A prominent individual from this region was Francesco Coniglio, a philosopher and writer who lived from 1790 to 1867. He authored several works on philosophy, literature, and politics, contributing to the intellectual discourse of his time.
While the Coniglio surname has its roots in Italy, it has since spread to other parts of the world due to migration and diaspora communities. However, the name's origins and earliest records can be traced back to the Italian peninsula, where it emerged as a descriptive or occupational surname several centuries ago.
Demographics
Among Census respondents with the surname Coniglio, the largest self-reported group is White at 90.4%. The next largest groups are Hispanic (5.5%) and Two or More Races (2.2%).
The bar chart below shows how Coniglio 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 Coniglio surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Coniglio 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
-58 bearers (-2.7%)
2020
National surname rank
-199 bearers (-9.6%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #13,149 | 2,132 | 0.79 | First available Census row | First available Census row |
| 2010 | #14,409 | 2,074 | 0.70 | -58 bearers (-2.7%) | Down 1,260 places |
| 2020 | #15,103 | 1,875 | 0.63 | -199 bearers (-9.6%) | Down 694 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 Coniglio 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 | #14,409 | #15,103 | -4.8% |
| Count | 2,074 | 1,875 | -9.6% |
| Per 100K | 0.70 | 0.63 | -10.4% |
Between the 2010 and 2020 Census, the number of Coniglio bearers went from 2,074 to 1,875 (-9.6% change). The surname moved down 694 positions in the national ranking, going from #14,409 to #15,103.
FAQ
Name Census estimates that about 2,150 living Americans carry the surname Coniglio. Using the current population baseline, that works out to roughly 1 in 159,421 residents.
Coniglio ranks #15,103 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.63 per 100,000 residents, which is about 1 people out of every 100,000.
The raw 2020 Census file counted 1,875 people with the surname Coniglio. That is different from the site's living-bearer estimate (2,150), 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 0.63 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Coniglio.
Between 2010 and 2020, the surname Coniglio went from 2,074 recorded bearers to 1,875. That is a decrease of 199 (-9.6%). In the national ranking it fell from #14,409 to #15,103.
Among Census respondents with the surname Coniglio, the largest self-reported group is White at 90.4%. The next largest groups are Hispanic (5.5%) and Two or More Races (2.2%). 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 Coniglio in the 2020 Census, accounting for 90.4% (1,695 people in the source table).
Coniglio appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (90.4%), Hispanic (5.5%), Two or More Races (2.2%). 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 Coniglio (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 derived from the word "coniglio," meaning "rabbit," likely referring to a rabbit hunter or seller. 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 Coniglio (0.63 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.