2000
#150,436
National surname rank
Recorded bearers 100
First available Census row
Per 100,000 0.04
Very Rare Last name
Castagne
A surname referring to a person living near or associated with chestnut trees.
According to the 2020 US Census Bureau surname tables, roughly 131 Americans carry the last name Castagne. That puts it at #146,495 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,616,445 residents).
This page is the full Name Census profile for the Castagne 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
131
1 in 2,616,445
Census rank
#146,495
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
114
very rare in the US
Popularity narrative
The Census Bureau recorded 114 bearers of the surname Castagne in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 146495th position in the national surname ranking.
Among Census respondents with the surname Castagne, the largest self-reported group is White at 66.7%. The next largest groups are Black (13.2%) and Hispanic (11.4%).
Origin
Meaning and origin of Castagne
The surname CASTAGNE is of Italian origin and dates back to the medieval period. It is derived from the Italian word "castagna" meaning "chestnut." This suggests that the name may have originated as a nickname for someone who lived near a chestnut grove or who had some association with chestnuts.
The name CASTAGNE is particularly concentrated in the regions of Piedmont, Lombardy, and Liguria in northern Italy. It is believed to have first appeared in written records in the 13th or 14th century, though the earliest known examples have not been definitively identified.
One of the earliest recorded individuals with the surname CASTAGNE was Giovanni Battista Castagne, a Genoese merchant who lived in the late 15th century. He is mentioned in several trade documents from the time, indicating that the name was already well-established in the maritime city of Genoa.
Another notable CASTAGNE was Francesco Castagne, a 16th-century painter from Milan. He was a student of the renowned artist Gaudenzio Ferrari and is known for his religious paintings adorning churches in and around Milan.
In the 17th century, the name CASTAGNE can be found associated with the town of Castagnevizza, now part of Slovenia but formerly part of the Republic of Venice. It is possible that the surname originated in this region and then spread to other parts of northern Italy.
One of the most famous individuals with the surname CASTAGNE was Carlo Castagne (1815-1886), an Italian military officer and politician who served as Minister of War in the Kingdom of Italy during the 1860s.
Another noteworthy CASTAGNE was Luigi Castagne (1864-1947), an Italian engineer and entrepreneur who founded the Castagne automobile company in Turin in the early 20th century. The company produced luxury automobiles until it ceased operations in the 1920s.
Demographics
Ancestry and ethnicity for Castagne
Among Census respondents with the surname Castagne, the largest self-reported group is White at 66.7%. The next largest groups are Black (13.2%) and Hispanic (11.4%).
The bar chart below shows how Castagne 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 Castagne surname at the time of the 2020 Census, not any inherent property of the name itself.
- White66.7% · 76
- Black or African American13.2% · 15
- Hispanic or Latino11.4% · 13
- Two or more races7.0% · 8
- Asian and Pacific Islander0.9% · 1
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Castagne
Castagne 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.
2010
#140,157
National surname rank
Recorded bearers 119
+19 bearers (+19.0%)
Per 100,000 0.04
Rank movement Up 10,279 places
2020
#146,495
National surname rank
Recorded bearers 114
-5 bearers (-4.2%)
Per 100,000 0.04
Rank movement Down 6,338 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #150,436 | 100 | 0.04 | First available Census row | First available Census row |
| 2010 | #140,157 | 119 | 0.04 | +19 bearers (+19.0%) | Up 10,279 places |
| 2020 | #146,495 | 114 | 0.04 | -5 bearers (-4.2%) | Down 6,338 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 Castagne 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 | #140,157 | #146,495 | -4.5% |
| Count | 119 | 114 | -4.2% |
| Per 100K | 0.04 | 0.04 | -4.6% |
Between the 2010 and 2020 Census, the number of Castagne bearers went from 119 to 114 (-4.2% change). The surname moved down 6,338 positions in the national ranking, going from #140,157 to #146,495.
FAQ
Castagne surname: questions and answers
How many people in the U.S. have the surname Castagne?
Name Census estimates that about 131 living Americans carry the surname Castagne. Using the current population baseline, that works out to roughly 1 in 2,616,445 residents.
How common is Castagne?
Castagne ranks #146,495 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 114 people with the surname Castagne. That is different from the site's living-bearer estimate (131), 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 Castagne.
Has Castagne become more or less common over time?
Between 2010 and 2020, the surname Castagne went from 119 recorded bearers to 114. That is a decrease of 5 (-4.2%). In the national ranking it fell from #140,157 to #146,495.
What does the Census say about the background of Castagne?
Among Census respondents with the surname Castagne, the largest self-reported group is White at 66.7%. The next largest groups are Black (13.2%) and Hispanic (11.4%). 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 Castagne in the 2020 Census, accounting for 66.7% (76 people in the source table).
What is the full ancestry breakdown?
Castagne appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (66.7%), Black (13.2%), Hispanic (11.4%). 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 Castagne (2000, 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 Castagne mean?
A surname referring to a person living near or associated with chestnut trees. 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 Castagne (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 Castagne?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.