2000
#143,847
National surname rank
Recorded bearers 106
First available Census row
Per 100,000 0.04
Very Rare Last name
Macejak
A Polish and Ukrainian occupational surname derived from the word "mac" meaning a crop thresher.
According to the 2020 US Census Bureau surname tables, roughly 118 Americans carry the last name Macejak. That puts it at #154,182 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,904,698 residents).
This page is the full Name Census profile for the Macejak 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
118
1 in 2,904,698
Census rank
#154,182
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
103
very rare in the US
Popularity narrative
The Census Bureau recorded 103 bearers of the surname Macejak in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154182nd position in the national surname ranking.
Among Census respondents with the surname Macejak, the largest self-reported group is White at 92.2%. The next largest groups are Hispanic (2.9%) and Two or More Races (2.9%).
Origin
Meaning and origin of Macejak
The surname MACEJAK originates from Poland, and its roots can be traced back to the 16th century. The name is derived from the Polish word "maciejka," which means "son of Maciej," an old Slavic form of the name Matthew. This suggests that the MACEJAK surname may have initially been used as a patronymic, identifying individuals as the sons or descendants of someone named Maciej.
In the early days, the MACEJAK name was primarily concentrated in the regions of Lesser Poland and Silesia, which were part of the Polish-Lithuanian Commonwealth at the time. The earliest known record of the name appears in a parish register from the village of Czernichów, near Kraków, dating back to 1592.
The MACEJAK surname has also been found in historical documents such as land records, tax rolls, and military registers from the 17th and 18th centuries. One notable example is Jan MACEJAK, a Polish soldier who fought in the Polish-Swedish War of 1626-1629 and was mentioned in a military record from 1629.
During the 19th century, as the industrial revolution gained momentum, many MACEJAK families migrated from rural areas to larger cities like Warsaw and Łódź in search of employment opportunities. This led to the further spread of the surname across different regions of Poland.
Among the notable individuals bearing the MACEJAK surname, one can mention Władysław MACEJAK (1878-1945), a Polish architect who designed several notable buildings in Kraków, including the Church of St. Michael the Archangel and the Seminarium Duchowne building. Another prominent figure was Zygmunt MACEJAK (1905-1987), a Polish writer and poet who was a member of the Polish Academy of Literature.
Other individuals with the MACEJAK surname include Józef MACEJAK (1892-1969), a Polish politician and member of the Sejm (Polish parliament) in the 1920s and 1930s, and Michał MACEJAK (1926-2012), a Polish economist and academic who served as the rector of the University of Łódź from 1981 to 1987.
While the MACEJAK surname is relatively uncommon outside of Poland, it has been carried to other parts of the world by Polish immigrants and their descendants over the centuries.
Demographics
Ancestry and ethnicity for Macejak
Among Census respondents with the surname Macejak, the largest self-reported group is White at 92.2%. The next largest groups are Hispanic (2.9%) and Two or More Races (2.9%).
The bar chart below shows how Macejak 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 Macejak surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.2% · 95
- Hispanic or Latino2.9% · 3
- Two or more races2.9% · 3
- Black or African American1.9% · 2
Timeline
Historical Census data for Macejak
Macejak 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
#149,395
National surname rank
Recorded bearers 110
+4 bearers (+3.8%)
Per 100,000 0.04
Rank movement Down 5,548 places
2020
#154,182
National surname rank
Recorded bearers 103
-7 bearers (-6.4%)
Per 100,000 0.03
Rank movement Down 4,787 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #143,847 | 106 | 0.04 | First available Census row | First available Census row |
| 2010 | #149,395 | 110 | 0.04 | +4 bearers (+3.8%) | Down 5,548 places |
| 2020 | #154,182 | 103 | 0.03 | -7 bearers (-6.4%) | Down 4,787 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 Macejak 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 | #154,182 | -3.2% |
| Count | 110 | 103 | -6.4% |
| Per 100K | 0.04 | 0.03 | -13.9% |
Between the 2010 and 2020 Census, the number of Macejak bearers went from 110 to 103 (-6.4% change). The surname moved down 4,787 positions in the national ranking, going from #149,395 to #154,182.
FAQ
Macejak surname: questions and answers
How many people in the U.S. have the surname Macejak?
Name Census estimates that about 118 living Americans carry the surname Macejak. Using the current population baseline, that works out to roughly 1 in 2,904,698 residents.
How common is Macejak?
Macejak ranks #154,182 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 103 people with the surname Macejak. That is different from the site's living-bearer estimate (118), 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 Macejak.
Has Macejak become more or less common over time?
Between 2010 and 2020, the surname Macejak went from 110 recorded bearers to 103. That is a decrease of 7 (-6.4%). In the national ranking it fell from #149,395 to #154,182.
What does the Census say about the background of Macejak?
Among Census respondents with the surname Macejak, the largest self-reported group is White at 92.2%. The next largest groups are Hispanic (2.9%) and Two or More Races (2.9%). 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 Macejak in the 2020 Census, accounting for 92.2% (95 people in the source table).
What is the full ancestry breakdown?
Macejak appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.2%), Hispanic (2.9%), Two or More Races (2.9%). 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 Macejak (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 Macejak mean?
A Polish and Ukrainian occupational surname derived from the word "mac" meaning a crop thresher. 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 Macejak (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 Americans have the surname Macejak?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.