2010
#149,395
National surname rank
Recorded bearers 110
First available Census row
Per 100,000 0.04
Very Rare Last name
Mostacero
An occupational surname relating to mustard or its production.
According to the 2020 US Census Bureau surname tables, roughly 133 Americans carry the last name Mostacero. That puts it at #145,028 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,577,100 residents).
This page is the full Name Census profile for the Mostacero 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
133
1 in 2,577,100
Census rank
#145,028
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
116
very rare in the US
Popularity narrative
The Census Bureau recorded 116 bearers of the surname Mostacero in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 145028th position in the national surname ranking.
Among Census respondents with the surname Mostacero, the largest self-reported group is Hispanic at 88.8%. The next largest groups are White (9.5%) and Black (0.9%).
Origin
Meaning and origin of Mostacero
The surname "MOSTACERO" is believed to have originated in Spain during the medieval period. It is thought to be derived from the Spanish word "mostaza," meaning mustard, and the suffix "-ero," indicating a person who works with or produces a particular product, in this case, mustard.
The name may have originated in regions of Spain where mustard cultivation or production was prevalent, such as Castile or Andalusia. Early records of the name are scarce, but it is possible that it appeared in local church or tax records from the 14th or 15th centuries.
One of the earliest recorded individuals with the surname "MOSTACERO" was Juan Mostacero, a merchant who lived in Seville, Spain, in the late 15th century. He was known for his involvement in the spice trade and may have been involved in the production or distribution of mustard.
Another notable bearer of the name was Pedro Mostacero, a soldier who fought in the Spanish Conquest of Mexico under Hernán Cortés in the early 16th century. He was among the conquistadors who accompanied Cortés on his expeditions and played a role in the subjugation of the Aztec Empire.
In the 17th century, María Mostacero gained recognition as a prominent painter in Madrid. She was known for her religious works and portraits, and her paintings can be found in several churches and private collections in Spain.
During the 18th century, José Mostacero was a renowned architect who designed several notable buildings in Barcelona, including the Church of Santa María del Mar and the Hospital de la Santa Creu.
In the 19th century, Enrique Mostacero was a influential political figure in Spain. He served as a member of the Spanish Parliament and was a vocal advocate for social reforms and workers' rights.
While the surname "MOSTACERO" is not among the most common in Spain today, it has a rich history spanning several centuries and is associated with individuals from various walks of life, including merchants, soldiers, artists, architects, and politicians.
Demographics
Ancestry and ethnicity for Mostacero
Among Census respondents with the surname Mostacero, the largest self-reported group is Hispanic at 88.8%. The next largest groups are White (9.5%) and Black (0.9%).
The bar chart below shows how Mostacero 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 Mostacero surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino88.8% · 103
- White9.5% · 11
- Black or African American0.9% · 1
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Mostacero
Mostacero 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.
2020
#145,028
National surname rank
Recorded bearers 116
+6 bearers (+5.5%)
Per 100,000 0.04
Rank movement Up 4,367 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #149,395 | 110 | 0.04 | First available Census row | First available Census row |
| 2020 | #145,028 | 116 | 0.04 | +6 bearers (+5.5%) | Up 4,367 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 Mostacero 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 | #149,395 | #145,028 | 2.9% |
| Count | 110 | 116 | 5.5% |
| Per 100K | 0.04 | 0.04 | -3.0% |
Between the 2010 and 2020 Census, the number of Mostacero bearers went from 110 to 116 (+5.5% change). The surname moved up 4,367 positions in the national ranking, going from #149,395 to #145,028.
FAQ
Mostacero surname: questions and answers
How many people in the U.S. have the surname Mostacero?
Name Census estimates that about 133 living Americans carry the surname Mostacero. Using the current population baseline, that works out to roughly 1 in 2,577,100 residents.
How common is Mostacero?
Mostacero ranks #145,028 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 116 people with the surname Mostacero. That is different from the site's living-bearer estimate (133), 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 Mostacero.
Has Mostacero become more or less common over time?
Between 2010 and 2020, the surname Mostacero went from 110 recorded bearers to 116. That is an increase of 6 (+5.5%). In the national ranking it rose from #149,395 to #145,028.
What does the Census say about the background of Mostacero?
Among Census respondents with the surname Mostacero, the largest self-reported group is Hispanic at 88.8%. The next largest groups are White (9.5%) and Black (0.9%). 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 Mostacero in the 2020 Census, accounting for 88.8% (103 people in the source table).
What is the full ancestry breakdown?
Mostacero appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (88.8%), White (9.5%), Black (0.9%). 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 Mostacero (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 Mostacero mean?
An occupational surname relating to mustard or its production. 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 Mostacero (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 common is the surname Mostacero?
See how many people have the last name Mostacero on HowManyOfMe.org, our sister site built around that single question.