2010
#153,769
National surname rank
Recorded bearers 106
First available Census row
Per 100,000 0.04
Very Rare Last name
Colunio
An Italian surname potentially derived from the Latin word "columen" meaning peak or summit.
According to the 2020 US Census Bureau surname tables, roughly 118 Americans carry the last name Colunio. That puts it at #154,182 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,904,698 residents).
This page is the full Name Census profile for the Colunio 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
118
1 in 2,904,698
Census rank
#154,182
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
103
very rare in the US
Popularity narrative
The Census Bureau recorded 103 bearers of the surname Colunio in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154182nd position in the national surname ranking.
Among Census respondents with the surname Colunio, the largest self-reported group is White at 88.3%. The next largest groups are Two or More Races (8.7%) and Hispanic (1.9%).
Origin
Meaning and origin of Colunio
The surname COLUNIO originated in Italy during the medieval period. It is believed to have derived from the Latin word "colonia," which referred to a Roman colony or settlement. This suggests that the name may have initially been given to someone who lived in or was associated with a Roman colony.
The earliest known records of the COLUNIO surname date back to the 13th century in the region of Tuscany, particularly in the cities of Florence and Siena. It is possible that the name was initially associated with a specific place name or location, as was common practice during that time.
In the 14th century, a notable figure named Guido COLUNIO (1305-1367) was a renowned jurist and legal scholar from Florence. He was known for his contributions to the study of Roman law and his teachings at the University of Bologna.
Another prominent individual with this surname was Pandolfo COLUNIO (1420-1490), a humanist scholar and diplomat from Naples. He served as a secretary to several popes and was involved in various diplomatic missions throughout Italy and Europe.
During the Renaissance period, the COLUNIO family was well-established in the city of Venice. One notable member was Baldassarre COLUNIO (1470-1540), a Venetian nobleman and patron of the arts. He commissioned several works from renowned artists, including Titian and Tintoretto.
In the 16th century, a branch of the COLUNIO family settled in Spain, where the name was adapted to the Spanish spelling "Colunio." One notable figure was Juan COLUNIO (1520-1588), a Spanish military commander who participated in the conquest of the Philippines and served as the Governor of the Philippine Islands from 1585 to 1588.
In the 17th century, the COLUNIO surname appeared in records from the Papal States, with a notable figure being Cardinal Girolamo COLUNIO (1610-1681), who served as the Bishop of Rimini and played a significant role in the Catholic Church during his time.
Demographics
Ancestry and ethnicity for Colunio
Among Census respondents with the surname Colunio, the largest self-reported group is White at 88.3%. The next largest groups are Two or More Races (8.7%) and Hispanic (1.9%).
The bar chart below shows how Colunio 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 Colunio surname at the time of the 2020 Census, not any inherent property of the name itself.
- White88.3% · 91
- Two or more races8.7% · 9
- Hispanic or Latino1.9% · 2
- Black or African American1.0% · 1
Timeline
Historical Census data for Colunio
Colunio 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
#154,182
National surname rank
Recorded bearers 103
-3 bearers (-2.8%)
Per 100,000 0.03
Rank movement Down 413 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #153,769 | 106 | 0.04 | First available Census row | First available Census row |
| 2020 | #154,182 | 103 | 0.03 | -3 bearers (-2.8%) | Down 413 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 Colunio 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 | #153,769 | #154,182 | -0.3% |
| Count | 106 | 103 | -2.8% |
| Per 100K | 0.04 | 0.03 | -13.9% |
Between the 2010 and 2020 Census, the number of Colunio bearers went from 106 to 103 (-2.8% change). The surname moved down 413 positions in the national ranking, going from #153,769 to #154,182.
FAQ
Colunio surname: questions and answers
How many people in the U.S. have the surname Colunio?
Name Census estimates that about 118 living Americans carry the surname Colunio. Using the current population baseline, that works out to roughly 1 in 2,904,698 residents.
How common is Colunio?
Colunio ranks #154,182 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 103 people with the surname Colunio. That is different from the site's living-bearer estimate (118), 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 Colunio.
Has Colunio become more or less common over time?
Between 2010 and 2020, the surname Colunio went from 106 recorded bearers to 103. That is a decrease of 3 (-2.8%). In the national ranking it fell from #153,769 to #154,182.
What does the Census say about the background of Colunio?
Among Census respondents with the surname Colunio, the largest self-reported group is White at 88.3%. The next largest groups are Two or More Races (8.7%) and Hispanic (1.9%). 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 Colunio in the 2020 Census, accounting for 88.3% (91 people in the source table).
What is the full ancestry breakdown?
Colunio appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (88.3%), Two or More Races (8.7%), Hispanic (1.9%). 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 Colunio (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 Colunio mean?
An Italian surname potentially derived from the Latin word "columen" meaning peak or summit. 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 Colunio (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 Colunio?
Want to know how many Americans have the surname Colunio? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.