2000
#14,898
National surname rank
Recorded bearers 1,822
First available Census row
Per 100,000 0.68
Rare Last name
Blancas
A Spanish surname derived from the plural of "blanco," meaning "white," referring to a person with light hair or complexion.
According to the 2020 US Census Bureau surname tables, roughly 2,831 Americans carry the last name Blancas. That puts it at #12,062 in the national surname ranking, appearing at a frequency of 0.83 per 100,000 people (about 1 in 121,072 residents).
This page is the full Name Census profile for the Blancas 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
2.8K
1 in 121,072
Census rank
#12,062
2020 decennial data
Per 100,000
0.8
Frequency rate
Recorded bearers
2.5K
rare in the US
Popularity narrative
The Census Bureau recorded 2,469 bearers of the surname Blancas in its 2020 decennial surname file. At a rate of 0.83 per 100,000 residents, it holds the 12062nd position in the national surname ranking.
Among Census respondents with the surname Blancas, the largest self-reported group is Hispanic at 93.2%. The next largest groups are White (3.6%) and Asian/Pacific Islander (2.5%).
Origin
Meaning and origin of Blancas
The surname Blancas has its origins in Spain, dating back to the medieval period. It is derived from the Spanish word "blanca," which means "white" or "fair-skinned." This suggests that the name may have been initially used as a descriptive nickname for someone with a fair complexion.
One of the earliest recorded instances of the name Blancas can be found in the "Libro de la Montería" (Book of the Hunt), a 14th-century Spanish manuscript that lists various place names and surnames. This document mentions a location called "La Blanca," which may have been the original place of residence for individuals bearing the surname Blancas.
During the 15th century, the name Blancas appeared in various historical records, such as the "Archivo de la Corona de Aragón" (Archive of the Crown of Aragon). This archive contains documents related to the Kingdom of Aragon, which was a prominent region in medieval Spain.
One notable individual with the surname Blancas was Jerónimo Blancas (1565-1590), a Spanish historian and chronicler from Aragon. He wrote extensively about the history of Aragon and its monarchs, including the work "Comentarios de las cosas de Aragón" (Commentary on the Affairs of Aragon).
Another famous bearer of the name was Pedro Blancas (1519-1590), a Spanish jurist and legal scholar from Valencia. He served as a judge in the Royal Audience of Valencia and wrote several legal treatises.
In the 17th century, Pedro Blancas y Tomás (1619-1678) was a Spanish prelate who served as the Bishop of Avila and later as the Archbishop of Valencia. He was known for his charitable works and his efforts to improve the education of the clergy.
During the 18th century, José Blancas y Calvo (1744-1812) was a Spanish military officer who played a significant role in the Peninsular War against the French invasion. He served as a general in the Spanish Army and was recognized for his bravery and leadership.
Lastly, in the 19th century, Juan Blancas y Constante (1833-1890) was a Spanish painter and artist from Madrid. He was known for his landscapes and historical scenes, and some of his works are displayed in the Museo del Prado in Madrid.
Demographics
Ancestry and ethnicity for Blancas
Among Census respondents with the surname Blancas, the largest self-reported group is Hispanic at 93.2%. The next largest groups are White (3.6%) and Asian/Pacific Islander (2.5%).
The bar chart below shows how Blancas 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 Blancas surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino93.2% · 2,301
- White3.6% · 90
- Asian and Pacific Islander2.5% · 61
- Two or more races0.5% · 12
- American Indian and Alaska Native0.2% · 5
Timeline
Historical Census data for Blancas
Blancas 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
#11,977
National surname rank
Recorded bearers 2,608
+786 bearers (+43.1%)
Per 100,000 0.88
Rank movement Up 2,921 places
2020
#12,062
National surname rank
Recorded bearers 2,469
-139 bearers (-5.3%)
Per 100,000 0.83
Rank movement Down 85 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #14,898 | 1,822 | 0.68 | First available Census row | First available Census row |
| 2010 | #11,977 | 2,608 | 0.88 | +786 bearers (+43.1%) | Up 2,921 places |
| 2020 | #12,062 | 2,469 | 0.83 | -139 bearers (-5.3%) | Down 85 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 Blancas 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 | #11,977 | #12,062 | -0.7% |
| Count | 2,608 | 2,469 | -5.3% |
| Per 100K | 0.88 | 0.83 | -6.1% |
Between the 2010 and 2020 Census, the number of Blancas bearers went from 2,608 to 2,469 (-5.3% change). The surname moved down 85 positions in the national ranking, going from #11,977 to #12,062.
FAQ
Blancas surname: questions and answers
How many people in the U.S. have the surname Blancas?
Name Census estimates that about 2,831 living Americans carry the surname Blancas. Using the current population baseline, that works out to roughly 1 in 121,072 residents.
How common is Blancas?
Blancas ranks #12,062 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.83 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 2,469 people with the surname Blancas. That is different from the site's living-bearer estimate (2,831), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.83 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.83 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 Blancas.
Has Blancas become more or less common over time?
Between 2010 and 2020, the surname Blancas went from 2,608 recorded bearers to 2,469. That is a decrease of 139 (-5.3%). In the national ranking it fell from #11,977 to #12,062.
What does the Census say about the background of Blancas?
Among Census respondents with the surname Blancas, the largest self-reported group is Hispanic at 93.2%. The next largest groups are White (3.6%) and Asian/Pacific Islander (2.5%). 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 Blancas in the 2020 Census, accounting for 93.2% (2,301 people in the source table).
What is the full ancestry breakdown?
Blancas appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (93.2%), White (3.6%), Asian/Pacific Islander (2.5%). 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 Blancas (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 Blancas mean?
A Spanish surname derived from the plural of "blanco," meaning "white," referring to a person with light hair or complexion. 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 Blancas (0.83 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 have the surname Blancas?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.