2000
#148,244
National surname rank
Recorded bearers 102
First available Census row
Per 100,000 0.04
Very Rare Last name
Mastalir
A surname with possible Turkish origins, perhaps related to the word "mastal" meaning ruffian or rowdy.
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Mastalir. That puts it at #147,221 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,636,572 residents).
This page is the full Name Census profile for the Mastalir 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
130
1 in 2,636,572
Census rank
#147,221
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
113
very rare in the US
Popularity narrative
The Census Bureau recorded 113 bearers of the surname Mastalir in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147221st position in the national surname ranking.
Among Census respondents with the surname Mastalir, the largest self-reported group is White at 99.1%. The next largest groups are Black (0.9%).
Origin
Meaning and origin of Mastalir
The surname MASTALIR is believed to have originated in the region of southern Poland and western Ukraine during the 16th century. It is thought to be derived from the Old Polish word "mastalir," meaning "one who works in a stable." This suggests that the earliest bearers of this surname may have been employed as stable hands or grooms responsible for caring for horses.
The name MASTALIR first appeared in historical records in the late 1500s, with references found in local parish registers and tax records from villages in the Polish-Lithuanian Commonwealth. One of the earliest recorded instances of the name was in a 1587 document detailing the sale of a plot of land in the town of Przemyśl, which mentioned a certain Maciej Mastalir as a witness.
In the 17th century, the name MASTALIR began to spread across central and eastern Europe, as families bearing the surname migrated to neighboring regions. During this time, variations in spelling also emerged, such as "Mastalirz," "Mastalyr," and "Mastalier."
A notable early bearer of the MASTALIR name was Jan Mastalir, a Polish-born soldier who served in the Hussar cavalry of the Polish-Lithuanian Commonwealth during the Khmelnytsky Uprising of 1648-1657. He was praised for his bravery and horsemanship in battles against the Cossack rebels.
In the 18th century, the surname MASTALIR appeared in records from the Austro-Hungarian Empire, particularly in the regions of Galicia and Bukovina, which were formerly part of the Polish-Lithuanian Commonwealth. One Franciszek Mastalir, born in 1732 in the town of Lviv (then known as Lemberg), was noted as a skilled farrier and blacksmith.
As the MASTALIR family spread across Europe, some members achieved notable positions. In the mid-19th century, a certain Andrzej Mastalir served as the mayor of the town of Jarosław in what is now southeastern Poland.
Another prominent individual with the MASTALIR surname was Karol Mastalir, a Polish-Austrian painter and illustrator born in 1881 in the town of Krakow. He was renowned for his landscapes and depictions of rural life in the Galicia region.
While the MASTALIR name originated in a specific region and occupation, it has since become more widespread, with bearers found in various parts of Europe and beyond.
Demographics
Ancestry and ethnicity for Mastalir
Among Census respondents with the surname Mastalir, the largest self-reported group is White at 99.1%. The next largest groups are Black (0.9%).
The bar chart below shows how Mastalir 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 Mastalir surname at the time of the 2020 Census, not any inherent property of the name itself.
- White99.1% · 112
- Black or African American0.9% · 1
Timeline
Historical Census data for Mastalir
Mastalir 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
#145,220
National surname rank
Recorded bearers 114
+12 bearers (+11.8%)
Per 100,000 0.04
Rank movement Up 3,024 places
2020
#147,221
National surname rank
Recorded bearers 113
-1 bearers (-0.9%)
Per 100,000 0.04
Rank movement Down 2,001 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #148,244 | 102 | 0.04 | First available Census row | First available Census row |
| 2010 | #145,220 | 114 | 0.04 | +12 bearers (+11.8%) | Up 3,024 places |
| 2020 | #147,221 | 113 | 0.04 | -1 bearers (-0.9%) | Down 2,001 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 Mastalir 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 | #145,220 | #147,221 | -1.4% |
| Count | 114 | 113 | -0.9% |
| Per 100K | 0.04 | 0.04 | -5.5% |
Between the 2010 and 2020 Census, the number of Mastalir bearers went from 114 to 113 (-0.9% change). The surname moved down 2,001 positions in the national ranking, going from #145,220 to #147,221.
FAQ
Mastalir surname: questions and answers
How many people in the U.S. have the surname Mastalir?
Name Census estimates that about 130 living Americans carry the surname Mastalir. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
How common is Mastalir?
Mastalir ranks #147,221 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 113 people with the surname Mastalir. That is different from the site's living-bearer estimate (130), 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 Mastalir.
Has Mastalir become more or less common over time?
Between 2010 and 2020, the surname Mastalir went from 114 recorded bearers to 113. That is a decrease of 1 (-0.9%). In the national ranking it fell from #145,220 to #147,221.
What does the Census say about the background of Mastalir?
Among Census respondents with the surname Mastalir, the largest self-reported group is White at 99.1%. The next largest groups are 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?
White is the largest self-reported group for the surname Mastalir in the 2020 Census, accounting for 99.1% (112 people in the source table).
What is the full ancestry breakdown?
Mastalir appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (99.1%), 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 Mastalir (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 Mastalir mean?
A surname with possible Turkish origins, perhaps related to the word "mastal" meaning ruffian or rowdy. 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 Mastalir (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 Mastalir?
See how many people are called Mastalir on HowManyOfMe.org, our sister site built around that single question.