2000
#13,648
National surname rank
Recorded bearers 2,039
First available Census row
Per 100,000 0.76
Rare Last name
Castiglione
An Italian habitational surname referring to someone from any of several places called Castiglione, meaning "castle" or "fortress."
According to the 2020 US Census Bureau surname tables, roughly 2,237 Americans carry the last name Castiglione. That puts it at #14,652 in the national surname ranking, appearing at a frequency of 0.65 per 100,000 people (about 1 in 153,221 residents).
This page is the full Name Census profile for the Castiglione 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.
For British records, Name Census UK has a British surname profile for Castiglione with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
2.2K
1 in 153,221
Census rank
#14,652
2020 decennial data
Per 100,000
0.7
Frequency rate
Recorded bearers
2.0K
rare in the US
Popularity narrative
The Census Bureau recorded 1,951 bearers of the surname Castiglione in its 2020 decennial surname file. At a rate of 0.65 per 100,000 residents, it holds the 14652nd position in the national surname ranking.
Among Census respondents with the surname Castiglione, the largest self-reported group is White at 91.4%. The next largest groups are Hispanic (5.1%) and Two or More Races (2.3%).
Origin
Meaning and origin of Castiglione
The surname Castiglione is of Italian origin, originating from the region of Tuscany in central Italy. It is derived from the Italian place name "Castiglione", which means "big castle" or "large fortified town". This place name is quite common throughout Italy, with several towns and villages bearing the name or variations of it.
The earliest known record of the surname Castiglione dates back to the 13th century in the Tuscan town of Castiglione Fiorentino. In 1260, a notable figure named Guido da Castiglione was mentioned in various historical documents as a prominent figure in the city's politics and military affairs.
During the Renaissance period, the Castiglione family rose to prominence, particularly in the court of the Gonzaga family, who ruled over the Duchy of Mantua. One of the most famous figures with this surname was Baldassare Castiglione (1478-1529), an Italian courtier, diplomat, and author, best known for his book "Il Cortegiano" (The Courtier), which was a seminal work on Renaissance etiquette and manners.
Another notable figure was Giuseppe Castiglione (1688-1766), an Italian Jesuit missionary and painter who was highly regarded in the court of the Qing Dynasty in China. He is often referred to as Lang Shining or Giuseppe Grava, and his art blended European and Chinese styles, making him an important figure in the cultural exchange between East and West.
In the 19th century, the Castiglione surname was associated with the Italian Risorgimento movement for national unification. Pietro Castiglione (1811-1877) was a prominent politician and diplomat who played a crucial role in the negotiations that led to the creation of the Kingdom of Italy in 1861.
Another notable figure was Count Giuseppe Castiglione (1856-1915), an Italian politician and businessman who served as the mayor of Palermo and was actively involved in the development of Sicily's economy and infrastructure.
Throughout history, the Castiglione surname has been carried by various artists, writers, politicians, and military figures, reflecting the family's long-standing presence and influence in Italian society.
Demographics
Ancestry and ethnicity for Castiglione
Among Census respondents with the surname Castiglione, the largest self-reported group is White at 91.4%. The next largest groups are Hispanic (5.1%) and Two or More Races (2.3%).
The bar chart below shows how Castiglione 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 Castiglione surname at the time of the 2020 Census, not any inherent property of the name itself.
- White91.4% · 1,784
- Hispanic or Latino5.1% · 100
- Two or more races2.3% · 44
- Asian and Pacific Islander0.7% · 13
- Black or African American0.4% · 8
- American Indian and Alaska Native0.1% · 2
Timeline
Historical Census data for Castiglione
Castiglione 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
#14,067
National surname rank
Recorded bearers 2,139
+100 bearers (+4.9%)
Per 100,000 0.73
Rank movement Down 419 places
2020
#14,652
National surname rank
Recorded bearers 1,951
-188 bearers (-8.8%)
Per 100,000 0.65
Rank movement Down 585 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #13,648 | 2,039 | 0.76 | First available Census row | First available Census row |
| 2010 | #14,067 | 2,139 | 0.73 | +100 bearers (+4.9%) | Down 419 places |
| 2020 | #14,652 | 1,951 | 0.65 | -188 bearers (-8.8%) | Down 585 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 Castiglione 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 | #14,067 | #14,652 | -4.2% |
| Count | 2,139 | 1,951 | -8.8% |
| Per 100K | 0.73 | 0.65 | -10.6% |
Between the 2010 and 2020 Census, the number of Castiglione bearers went from 2,139 to 1,951 (-8.8% change). The surname moved down 585 positions in the national ranking, going from #14,067 to #14,652.
FAQ
Castiglione surname: questions and answers
How many people in the U.S. have the surname Castiglione?
Name Census estimates that about 2,237 living Americans carry the surname Castiglione. Using the current population baseline, that works out to roughly 1 in 153,221 residents.
How common is Castiglione?
Castiglione ranks #14,652 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.65 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 1,951 people with the surname Castiglione. That is different from the site's living-bearer estimate (2,237), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.65 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.65 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 Castiglione.
Has Castiglione become more or less common over time?
Between 2010 and 2020, the surname Castiglione went from 2,139 recorded bearers to 1,951. That is a decrease of 188 (-8.8%). In the national ranking it fell from #14,067 to #14,652.
What does the Census say about the background of Castiglione?
Among Census respondents with the surname Castiglione, the largest self-reported group is White at 91.4%. The next largest groups are Hispanic (5.1%) and Two or More Races (2.3%). 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 Castiglione in the 2020 Census, accounting for 91.4% (1,784 people in the source table).
What is the full ancestry breakdown?
Castiglione appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (91.4%), Hispanic (5.1%), Two or More Races (2.3%). 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 Castiglione (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 Castiglione mean?
An Italian habitational surname referring to someone from any of several places called Castiglione, meaning "castle" or "fortress." 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 Castiglione (0.65 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 Castiglione?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.