2000
#22,481
National surname rank
Recorded bearers 1,068
First available Census row
Per 100,000 0.40
Rare Last name
Astacio
A Spanish surname derived from the Latin name "Astacius" of unknown meaning.
According to the 2020 US Census Bureau surname tables, roughly 1,654 Americans carry the last name Astacio. That puts it at #18,866 in the national surname ranking, appearing at a frequency of 0.48 per 100,000 people (about 1 in 207,228 residents).
This page is the full Name Census profile for the Astacio 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
1.7K
1 in 207,228
Census rank
#18,866
2020 decennial data
Per 100,000
0.5
Frequency rate
Recorded bearers
1.4K
rare in the US
Popularity narrative
The Census Bureau recorded 1,442 bearers of the surname Astacio in its 2020 decennial surname file. At a rate of 0.48 per 100,000 residents, it holds the 18866th position in the national surname ranking.
Among Census respondents with the surname Astacio, the largest self-reported group is Hispanic at 91.5%. The next largest groups are White (6.6%) and Black (1.1%).
Origin
Meaning and origin of Astacio
The surname Astacio has its origins in the Spanish language and is believed to have originated in the regions of Spain and Latin America. It is thought to be derived from the Latin word "astacus," which means "lobster" or "crayfish." This suggests that the name may have initially been given as a descriptive nickname or occupational name for someone who caught or sold lobsters or crayfish.
In terms of historical references, the Astacio surname can be traced back to the 15th century in Spain. It is recorded in various historical documents and manuscripts from that time period, although specific details about the earliest known bearers of the name are scarce.
One of the earliest recorded examples of the Astacio surname is that of Juan Astacio, a Spanish explorer and navigator born in the late 15th century. He accompanied Christopher Columbus on his second voyage to the Americas in 1493 and played a significant role in the exploration and colonization of the Caribbean islands.
Another notable figure with the Astacio surname was Pedro Astacio, a Spanish painter who lived in the 16th century. He was known for his religious artwork and frescoes in churches throughout Spain and is considered one of the prominent artists of the Spanish Renaissance.
In the 17th century, the Astacio surname is found in records from various regions of Latin America, indicating that individuals with this name had migrated to the New World during the Spanish colonization. One such individual was Diego Astacio, a landowner and cattle rancher in present-day Colombia, who lived from 1620 to 1695.
In the 18th century, the Astacio surname appears in records from the Spanish West Indies, particularly in Cuba and Puerto Rico. One notable bearer of the name from this period was Tomás Astacio, a Cuban military officer and politician who lived from 1740 to 1812.
Moving into the 19th century, the Astacio surname gained prominence in various parts of Latin America, particularly in Mexico and Central America. One example is Ramón Astacio, a Mexican writer and journalist who lived from 1825 to 1892 and was known for his contributions to the literary and cultural scene of his time.
Throughout its history, the Astacio surname has been associated with various locations, including Spain, Cuba, Puerto Rico, Colombia, Mexico, and other parts of Latin America. While the name's origins can be traced back to Spain, it has since spread and taken root in various regions, reflecting the migration patterns and cultural influences of the Spanish-speaking world.
Demographics
Ancestry and ethnicity for Astacio
Among Census respondents with the surname Astacio, the largest self-reported group is Hispanic at 91.5%. The next largest groups are White (6.6%) and Black (1.1%).
The bar chart below shows how Astacio 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 Astacio surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino91.5% · 1,320
- White6.6% · 95
- Black or African American1.1% · 16
- Two or more races0.3% · 5
- Asian and Pacific Islander0.3% · 4
- American Indian and Alaska Native0.1% · 2
Timeline
Historical Census data for Astacio
Astacio 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
#18,804
National surname rank
Recorded bearers 1,457
+389 bearers (+36.4%)
Per 100,000 0.49
Rank movement Up 3,677 places
2020
#18,866
National surname rank
Recorded bearers 1,442
-15 bearers (-1.0%)
Per 100,000 0.48
Rank movement Down 62 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #22,481 | 1,068 | 0.40 | First available Census row | First available Census row |
| 2010 | #18,804 | 1,457 | 0.49 | +389 bearers (+36.4%) | Up 3,677 places |
| 2020 | #18,866 | 1,442 | 0.48 | -15 bearers (-1.0%) | Down 62 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 Astacio 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 | #18,804 | #18,866 | -0.3% |
| Count | 1,457 | 1,442 | -1.0% |
| Per 100K | 0.49 | 0.48 | -1.5% |
Between the 2010 and 2020 Census, the number of Astacio bearers went from 1,457 to 1,442 (-1.0% change). The surname moved down 62 positions in the national ranking, going from #18,804 to #18,866.
Notable bearers
Famous people with the surname Astacio
FAQ
Astacio surname: questions and answers
How many people in the U.S. have the surname Astacio?
Name Census estimates that about 1,654 living Americans carry the surname Astacio. Using the current population baseline, that works out to roughly 1 in 207,228 residents.
How common is Astacio?
Astacio ranks #18,866 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.48 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 1,442 people with the surname Astacio. That is different from the site's living-bearer estimate (1,654), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.48 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.48 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 Astacio.
Has Astacio become more or less common over time?
Between 2010 and 2020, the surname Astacio went from 1,457 recorded bearers to 1,442. That is a decrease of 15 (-1.0%). In the national ranking it fell from #18,804 to #18,866.
What does the Census say about the background of Astacio?
Among Census respondents with the surname Astacio, the largest self-reported group is Hispanic at 91.5%. The next largest groups are White (6.6%) and Black (1.1%). 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?
Hispanic is the largest self-reported group for the surname Astacio in the 2020 Census, accounting for 91.5% (1,320 people in the source table).
What is the full ancestry breakdown?
Astacio appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (91.5%), White (6.6%), Black (1.1%). 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 Astacio (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 Astacio mean?
A Spanish surname derived from the Latin name "Astacius" of unknown meaning. 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 Astacio (0.48 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 people share the surname Astacio?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.