2000
#114,166
National surname rank
Recorded bearers 142
First available Census row
Per 100,000 0.05
Very Rare Last name
Masiak
A surname of Polish origin derived from the word "masiak" meaning round or chubby.
According to the 2020 US Census Bureau surname tables, roughly 132 Americans carry the last name Masiak. That puts it at #145,757 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,596,624 residents).
This page is the full Name Census profile for the Masiak 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
132
1 in 2,596,624
Census rank
#145,757
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
115
very rare in the US
Popularity narrative
The Census Bureau recorded 115 bearers of the surname Masiak in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 145757th position in the national surname ranking.
Among Census respondents with the surname Masiak, the largest self-reported group is White at 93.0%. The next largest groups are Hispanic (3.5%) and Asian/Pacific Islander (1.7%).
Origin
Meaning and origin of Masiak
The surname MASIAK is believed to have originated in Poland in the 16th century. It is derived from the Polish word "masiak," which means a person who produces or sells butter or other dairy products. This suggests that the earliest bearers of this name may have been involved in the dairy trade or lived in an area known for its dairy production.
One of the earliest recorded instances of the MASIAK surname can be found in the parish records of the village of Piekary Śląskie, located in the Silesian region of Poland, dated back to the late 1500s. The name appeared in various spellings, such as Masiak, Masak, and Massiak, reflecting the evolution of the Polish language over time.
In the 17th century, the MASIAK surname can be traced to the nearby town of Bytom, where several families bearing this name were recorded in the local church registers. This suggests that the name had spread to other parts of Silesia during this period.
The MASIAK surname is also found in historical records from the city of Kraków, one of the oldest and most important cities in Poland. In the 18th century, a merchant named Jan MASIAK is mentioned in the city's trade records, indicating that some members of the family had established themselves in the urban mercantile class.
One notable figure bearing the MASIAK surname was Franciszek MASIAK, a Polish Catholic priest and theologian who lived in the late 18th and early 19th centuries (1768-1835). He served as a professor of theology at the University of Warsaw and authored several works on religious subjects.
Another prominent individual with the MASIAK surname was Józef MASIAK (1859-1935), a Polish engineer and industrialist who played a significant role in the development of the mining industry in the Silesian region. He founded several coal mining companies and was instrumental in modernizing mining practices in the area.
In the 20th century, Stanisław MASIAK (1905-1981) was a Polish painter and art educator who specialized in landscape and portrait painting. He taught at the Academy of Fine Arts in Warsaw and had several solo exhibitions in Poland and abroad.
Andrzej MASIAK (1923-2008) was a Polish actor and theater director who had a long and distinguished career on stage and in film. He appeared in numerous Polish productions and was awarded several honors for his contributions to the performing arts.
These examples illustrate the diverse backgrounds and professions of individuals who have borne the MASIAK surname throughout history, from tradespeople and clergy to industrialists, artists, and actors. While the name originated in a specific region of Poland, it has spread across the country and beyond, carrying with it the legacy of its roots in the dairy trade.
Demographics
Ancestry and ethnicity for Masiak
Among Census respondents with the surname Masiak, the largest self-reported group is White at 93.0%. The next largest groups are Hispanic (3.5%) and Asian/Pacific Islander (1.7%).
The bar chart below shows how Masiak 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 Masiak surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.0% · 107
- Hispanic or Latino3.5% · 4
- Asian and Pacific Islander1.7% · 2
- Two or more races1.7% · 2
Timeline
Historical Census data for Masiak
Masiak 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
#126,765
National surname rank
Recorded bearers 135
-7 bearers (-4.9%)
Per 100,000 0.05
Rank movement Down 12,599 places
2020
#145,757
National surname rank
Recorded bearers 115
-20 bearers (-14.8%)
Per 100,000 0.04
Rank movement Down 18,992 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #114,166 | 142 | 0.05 | First available Census row | First available Census row |
| 2010 | #126,765 | 135 | 0.05 | -7 bearers (-4.9%) | Down 12,599 places |
| 2020 | #145,757 | 115 | 0.04 | -20 bearers (-14.8%) | Down 18,992 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 Masiak 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 | #126,765 | #145,757 | -15.0% |
| Count | 135 | 115 | -14.8% |
| Per 100K | 0.05 | 0.04 | -23.1% |
Between the 2010 and 2020 Census, the number of Masiak bearers went from 135 to 115 (-14.8% change). The surname moved down 18,992 positions in the national ranking, going from #126,765 to #145,757.
FAQ
Masiak surname: questions and answers
How many people in the U.S. have the surname Masiak?
Name Census estimates that about 132 living Americans carry the surname Masiak. Using the current population baseline, that works out to roughly 1 in 2,596,624 residents.
How common is Masiak?
Masiak ranks #145,757 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 115 people with the surname Masiak. That is different from the site's living-bearer estimate (132), 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 Masiak.
Has Masiak become more or less common over time?
Between 2010 and 2020, the surname Masiak went from 135 recorded bearers to 115. That is a decrease of 20 (-14.8%). In the national ranking it fell from #126,765 to #145,757.
What does the Census say about the background of Masiak?
Among Census respondents with the surname Masiak, the largest self-reported group is White at 93.0%. The next largest groups are Hispanic (3.5%) and Asian/Pacific Islander (1.7%). 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 Masiak in the 2020 Census, accounting for 93.0% (107 people in the source table).
What is the full ancestry breakdown?
Masiak appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.0%), Hispanic (3.5%), Asian/Pacific Islander (1.7%). 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 Masiak (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 Masiak mean?
A surname of Polish origin derived from the word "masiak" meaning round or chubby. 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 Masiak (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 many people share the surname Masiak?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.