2010
#153,769
National surname rank
First available Census row
A Spanish habitational surname indicating someone from a place called Castedo.
According to the 2020 US Census Bureau surname tables, roughly 128 Americans carry the last name Castedo. That puts it at #147,954 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,677,768 residents).
This page is the full Name Census profile for the Castedo 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
128
1 in 2,677,768
Census rank
#147,954
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
112
very rare in the US
Popularity narrative
The Census Bureau recorded 112 bearers of the surname Castedo in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147954th position in the national surname ranking.
Among Census respondents with the surname Castedo, the largest self-reported group is Hispanic at 90.2%. The next largest groups are White (8.0%) and American Indian/Alaska Native (1.8%).
Origin
The surname Castedo has its origins in Spain, tracing back to the medieval period. It is derived from the Spanish word "castedo," which means "chestnut grove" or "chestnut forest." This suggests that the name may have originated from a specific geographic location or a property associated with chestnut trees.
One of the earliest recorded instances of the surname Castedo can be found in the Becerro de Behetrias, a census-like document from the 14th century that recorded landowners and their properties in the regions of Castile and León. This indicates that the Castedo family had established themselves as landowners during this time.
In the 16th century, the Castedo surname appeared in various documents and records from the northern regions of Spain, particularly in the provinces of Asturias and Cantabria. This area is known for its lush forests and chestnut groves, further reinforcing the connection between the name and its potential geographic origins.
Among the notable individuals with the Castedo surname, one can mention Diego de Castedo (1510-1584), a Spanish naval officer and explorer who participated in expeditions to the Americas during the Age of Discovery. Another prominent figure was Alonso de Castedo (1570-1632), a Spanish military commander who played a significant role in the conquest of Chile.
In the 18th century, Juan de Castedo (1705-1778) was a renowned Spanish architect and engineer, known for his contributions to the reconstruction efforts after the 1755 Lisbon earthquake. His work helped shape the urban landscape of the Portuguese capital.
Moving into the 19th century, José María de Castedo (1820-1892) was a Spanish politician and diplomat who served as the Minister of Foreign Affairs during the reign of Queen Isabella II. He played a crucial role in shaping Spain's foreign policy during a turbulent period in the country's history.
Throughout its history, the Castedo surname has been associated with various locations and place names in Spain, such as Castedo (a parish in Asturias), Castedos (a municipality in Cantabria), and Castedo del Monte (a village in Burgos). These place names further reinforce the connection between the surname and its potential geographic origins.
Demographics
Among Census respondents with the surname Castedo, the largest self-reported group is Hispanic at 90.2%. The next largest groups are White (8.0%) and American Indian/Alaska Native (1.8%).
The bar chart below shows how Castedo 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 Castedo surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Castedo 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.
2010
National surname rank
First available Census row
2020
National surname rank
+6 bearers (+5.7%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #153,769 | 106 | 0.04 | First available Census row | First available Census row |
| 2020 | #147,954 | 112 | 0.04 | +6 bearers (+5.7%) | Up 5,815 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 Castedo 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 | #153,769 | #147,954 | 3.8% |
| Count | 106 | 112 | 5.7% |
| Per 100K | 0.04 | 0.04 | -6.3% |
Between the 2010 and 2020 Census, the number of Castedo bearers went from 106 to 112 (+5.7% change). The surname moved up 5,815 positions in the national ranking, going from #153,769 to #147,954.
FAQ
Name Census estimates that about 128 living Americans carry the surname Castedo. Using the current population baseline, that works out to roughly 1 in 2,677,768 residents.
Castedo ranks #147,954 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.
The raw 2020 Census file counted 112 people with the surname Castedo. That is different from the site's living-bearer estimate (128), 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 0.04 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 Castedo.
Between 2010 and 2020, the surname Castedo went from 106 recorded bearers to 112. That is an increase of 6 (+5.7%). In the national ranking it rose from #153,769 to #147,954.
Among Census respondents with the surname Castedo, the largest self-reported group is Hispanic at 90.2%. The next largest groups are White (8.0%) and American Indian/Alaska Native (1.8%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Hispanic is the largest self-reported group for the surname Castedo in the 2020 Census, accounting for 90.2% (101 people in the source table).
Castedo appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (90.2%), White (8.0%), American Indian/Alaska Native (1.8%). 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.
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 Castedo (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.
A Spanish habitational surname indicating someone from a place called Castedo. 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 Castedo (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.
If you just want to know how many people have the last name Castedo, HowManyOfMe.org gives you the headline number in one glance.