2000
#3,735
National surname rank
Recorded bearers 8,721
First available Census row
Per 100,000 3.23
Rare Last name
Mazur
A Polish occupational surname referring to someone who lived or worked near a maziary, a place where mazium was produced.
According to the 2020 US Census Bureau surname tables, roughly 9,717 Americans carry the last name Mazur. That puts it at #4,069 in the national surname ranking, appearing at a frequency of 2.84 per 100,000 people (about 1 in 35,274 residents).
This page is the full Name Census profile for the Mazur 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.
For British records, Name Census UK has a British surname profile for Mazur with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
9.7K
1 in 35,274
Census rank
#4,069
2020 decennial data
Per 100,000
2.8
Frequency rate
Recorded bearers
8.5K
rare in the US
Popularity narrative
The Census Bureau recorded 8,474 bearers of the surname Mazur in its 2020 decennial surname file. At a rate of 2.84 per 100,000 residents, it holds the 4069th position in the national surname ranking.
Among Census respondents with the surname Mazur, the largest self-reported group is White at 93.0%. The next largest groups are Hispanic (3.5%) and Two or More Races (2.2%).
Origin
Meaning and origin of Mazur
The surname Mazur originated in Poland, likely emerging as early as the 12th century. It is derived from the Polish word "mazur," which referred to a person from the historical region of Mazovia (Mazowsze in Polish). Mazovia was a territory located in central-eastern Poland, with its capital in the city of Warsaw.
Mazur was initially a descriptive surname, identifying individuals who hailed from the Mazovian region. Over time, it became an inherited family name passed down through generations. Early variants of the spelling included Mazurski and Mazurek, which were later simplified to the more common form, Mazur.
Historical records mention the name Mazur as early as the 14th century. For instance, a document from the city of Krakow in 1390 refers to a man named Jan Mazur, who was a merchant and landowner. In the 15th century, the name appeared in the Metrica Regni Poloniae, a collection of records from the Polish-Lithuanian Commonwealth.
One of the earliest notable individuals with the surname Mazur was Stanisław Mazur (1505-1581), a Polish nobleman and military commander. He served as a voivode (governor) of the Lublin region and played a significant role in defending the country against invaders during the Livonian War.
Another prominent figure was Franciszek Mazur (1772-1848), a Polish painter and engraver known for his intricate landscapes and cityscapes. He studied and worked in Warsaw, and his works can be found in several Polish museums and private collections.
In the 19th century, Karol Mazur (1827-1891) was a Polish engineer and inventor. He is credited with developing a system for transmitting sound over electrical wires, which laid the groundwork for the modern telephone.
The name Mazur has also been associated with various place names in Poland, such as the villages of Mazury and Mazurki, which further reinforced its connection to the Mazovian region.
Over the centuries, the Mazur surname has been carried by numerous individuals from diverse backgrounds, including artists, scholars, military personnel, and more. Some other notable bearers of this name include Józef Mazur (1902-1983), a Polish architect and urban planner, and Jan Mazur (born 1920), a Polish World War II resistance fighter and political activist.
Demographics
Ancestry and ethnicity for Mazur
Among Census respondents with the surname Mazur, the largest self-reported group is White at 93.0%. The next largest groups are Hispanic (3.5%) and Two or More Races (2.2%).
The bar chart below shows how Mazur 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 Mazur surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.0% · 7,882
- Hispanic or Latino3.5% · 293
- Two or more races2.2% · 190
- Asian and Pacific Islander0.7% · 60
- Black or African American0.4% · 31
- American Indian and Alaska Native0.2% · 18
Timeline
Historical Census data for Mazur
Mazur 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
#4,069
National surname rank
Recorded bearers 8,733
+12 bearers (+0.1%)
Per 100,000 2.96
Rank movement Down 334 places
2020
#4,069
National surname rank
Recorded bearers 8,474
-259 bearers (-3.0%)
Per 100,000 2.84
Rank movement No rank change
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #3,735 | 8,721 | 3.23 | First available Census row | First available Census row |
| 2010 | #4,069 | 8,733 | 2.96 | +12 bearers (+0.1%) | Down 334 places |
| 2020 | #4,069 | 8,474 | 2.84 | -259 bearers (-3.0%) | No rank change |
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 Mazur 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 | #4,069 | #4,069 | 0.0% |
| Count | 8,733 | 8,474 | -3.0% |
| Per 100K | 2.96 | 2.84 | -4.2% |
Between the 2010 and 2020 Census, the number of Mazur bearers went from 8,733 to 8,474 (-3.0% change). The surname held its position in the national ranking, remaining at #4,069.
Notable bearers
Famous people with the surname Mazur
FAQ
Mazur surname: questions and answers
How many people in the U.S. have the surname Mazur?
Name Census estimates that about 9,717 living Americans carry the surname Mazur. Using the current population baseline, that works out to roughly 1 in 35,274 residents.
How common is Mazur?
Mazur ranks #4,069 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 2.84 per 100,000 residents, which is about 3 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 8,474 people with the surname Mazur. That is different from the site's living-bearer estimate (9,717), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 2.84 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 2.84 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 3 of them to have the surname Mazur.
Has Mazur become more or less common over time?
Between 2010 and 2020, the surname Mazur went from 8,733 recorded bearers to 8,474. That is a decrease of 259 (-3.0%). In the national ranking it stayed at #4,069.
What does the Census say about the background of Mazur?
Among Census respondents with the surname Mazur, the largest self-reported group is White at 93.0%. The next largest groups are Hispanic (3.5%) and Two or More Races (2.2%). 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 Mazur in the 2020 Census, accounting for 93.0% (7,882 people in the source table).
What is the full ancestry breakdown?
Mazur appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.0%), Hispanic (3.5%), Two or More Races (2.2%). 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 Mazur (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 Mazur mean?
A Polish occupational surname referring to someone who lived or worked near a maziary, a place where mazium was produced. 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 Mazur (2.84 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 are called Mazur?
If you just want to know how many people have the surname Mazur, HowManyOfMe.org gives you the headline number in one glance.