2010
#148,347
National surname rank
Recorded bearers 111
First available Census row
Per 100,000 0.04
Very Rare Last name
Mastoras
A Greek surname deriving from the term "mastoras" meaning "expert craftsman" or "artisan".
According to the 2020 US Census Bureau surname tables, roughly 117 Americans carry the last name Mastoras. That puts it at #154,755 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,929,524 residents).
This page is the full Name Census profile for the Mastoras 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
117
1 in 2,929,524
Census rank
#154,755
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
102
very rare in the US
Popularity narrative
The Census Bureau recorded 102 bearers of the surname Mastoras in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154755th position in the national surname ranking.
Among Census respondents with the surname Mastoras, the largest self-reported group is White at 95.1%. The next largest groups are Hispanic (2.9%) and Asian/Pacific Islander (2.0%).
Origin
Meaning and origin of Mastoras
The surname Mastoras has its roots in Greece, originating from the Greek word "mastoras," which translates to "master" or "skilled craftsman." This name came into existence during the Byzantine era, when skilled artisans and craftsmen played a crucial role in the economic and cultural life of the empire.
The name can be traced back to the 11th century, where records show individuals bearing the name Mastoras in various regions of the Byzantine Empire, particularly in present-day Greece and parts of modern-day Turkey. It is believed that the name was initially given to individuals who excelled in specific crafts, such as masonry, carpentry, or metalworking.
One of the earliest recorded instances of the name Mastoras can be found in a manuscript from the Monastery of Vatopedi on Mount Athos, where a monk named Gregorios Mastoras is mentioned as a skilled calligrapher and icon painter in the year 1064. This record provides valuable insight into the association of the name with artistic and craftsmanship expertise.
During the Ottoman rule in Greece, the name Mastoras continued to be used, often reflecting the occupation or trade of the bearer. In the 16th century, a renowned architect named Konstantinos Mastoras was responsible for the construction of several significant buildings in the city of Constantinople (modern-day Istanbul), including the Şehzade Mosque and the Süleymaniye Mosque.
Another notable figure bearing the surname Mastoras was Nikolaos Mastoras, a Greek poet and scholar who lived in the late 17th century. He was renowned for his contributions to Greek literature and his translations of ancient texts. His works played a crucial role in preserving and promoting Greek cultural heritage during a turbulent period of Ottoman rule.
In the 18th century, a prominent figure named Ioannis Mastoras gained recognition for his skilled craftsmanship in woodcarving. He was responsible for creating intricate wooden iconostases (icon screens) and other religious artifacts for churches throughout Greece and the Balkans.
Fast forward to the 19th century, a Greek merchant named Theodoros Mastoras made a name for himself in the textile trade, establishing successful business ventures in Thessaloniki and other major cities in the region.
As the centuries passed, the surname Mastoras continued to be associated with skilled professions and trades, reflecting the rich heritage and cultural significance of craftsmanship in Greek society.
Demographics
Ancestry and ethnicity for Mastoras
Among Census respondents with the surname Mastoras, the largest self-reported group is White at 95.1%. The next largest groups are Hispanic (2.9%) and Asian/Pacific Islander (2.0%).
The bar chart below shows how Mastoras 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 Mastoras surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.1% · 97
- Hispanic or Latino2.9% · 3
- Asian and Pacific Islander2.0% · 2
Timeline
Historical Census data for Mastoras
Mastoras 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
#154,755
National surname rank
Recorded bearers 102
-9 bearers (-8.1%)
Per 100,000 0.03
Rank movement Down 6,408 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #148,347 | 111 | 0.04 | First available Census row | First available Census row |
| 2020 | #154,755 | 102 | 0.03 | -9 bearers (-8.1%) | Down 6,408 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 Mastoras 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 | #148,347 | #154,755 | -4.3% |
| Count | 111 | 102 | -8.1% |
| Per 100K | 0.04 | 0.03 | -14.7% |
Between the 2010 and 2020 Census, the number of Mastoras bearers went from 111 to 102 (-8.1% change). The surname moved down 6,408 positions in the national ranking, going from #148,347 to #154,755.
FAQ
Mastoras surname: questions and answers
How many people in the U.S. have the surname Mastoras?
Name Census estimates that about 117 living Americans carry the surname Mastoras. Using the current population baseline, that works out to roughly 1 in 2,929,524 residents.
How common is Mastoras?
Mastoras ranks #154,755 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 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 102 people with the surname Mastoras. That is different from the site's living-bearer estimate (117), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Mastoras.
Has Mastoras become more or less common over time?
Between 2010 and 2020, the surname Mastoras went from 111 recorded bearers to 102. That is a decrease of 9 (-8.1%). In the national ranking it fell from #148,347 to #154,755.
What does the Census say about the background of Mastoras?
Among Census respondents with the surname Mastoras, the largest self-reported group is White at 95.1%. The next largest groups are Hispanic (2.9%) and Asian/Pacific Islander (2.0%). 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 Mastoras in the 2020 Census, accounting for 95.1% (97 people in the source table).
What is the full ancestry breakdown?
Mastoras appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.1%), Hispanic (2.9%), Asian/Pacific Islander (2.0%). 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 Mastoras (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 Mastoras mean?
A Greek surname deriving from the term "mastoras" meaning "expert craftsman" or "artisan". 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 Mastoras (0.03 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 Mastoras?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.