2000
#136,783
National surname rank
Recorded bearers 113
First available Census row
Per 100,000 0.04
Very Rare Last name
Kaczmark
A Polish surname referring to a duck farmer or duck herder.
According to the 2020 US Census Bureau surname tables, roughly 116 Americans carry the last name Kaczmark. That puts it at #155,270 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,954,779 residents).
This page is the full Name Census profile for the Kaczmark 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
116
1 in 2,954,779
Census rank
#155,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
101
very rare in the US
Popularity narrative
The Census Bureau recorded 101 bearers of the surname Kaczmark in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 155270th position in the national surname ranking.
Among Census respondents with the surname Kaczmark, the largest self-reported group is White at 87.1%. The next largest groups are Two or More Races (8.9%) and American Indian/Alaska Native (3.0%).
Origin
Meaning and origin of Kaczmark
The surname KACZMARK is of Polish origin, originating in the late Middle Ages or early Renaissance period. It is derived from the Polish word "kaczka" meaning "duck" and the suffix "-mark" which likely denotes a place name or occupation. This suggests the name may have originally referred to someone living near a place with ducks or involved in duck-related trades.
One of the earliest recorded instances of the name KACZMARK can be found in a 16th century Polish parish record from the town of Krosno, where a Jan KACZMARK is mentioned. Another early example is Pawel KACZMARK, born around 1580 in the village of Zabno near Tarnow.
In the 17th century, the KACZMARK name appears in various records from the Krakow region of southern Poland. A notable bearer was Stanislaw KACZMARK (1622-1697), a landowner and member of the local nobility in the village of Skawina.
Entering the 18th century, the KACZMARK name spread further across Poland. Antoni KACZMARK (1735-1801) was a merchant and guild member in the city of Lublin. In the late 1700s, Jakub KACZMARK (1768-1842) served as a sergeant in the Polish military during the Kosciuszko Uprising against Russian occupation.
As the 19th century dawned, the industrial revolution brought many KACZMARKS from rural areas into growing cities. Franciszek KACZMARK (1818-1887) was a prominent banker and financier in Warsaw. Meanwhile, Wladyslaw KACZMARK (1832-1902) achieved renown as a poet and writer associated with the Polish Romantic literary movement.
These examples demonstrate the long history of the KACZMARK surname stretching back over centuries in Poland. While the name's precise origin remains uncertain, it clearly established deep roots across social classes and regions of the country over time.
Demographics
Ancestry and ethnicity for Kaczmark
Among Census respondents with the surname Kaczmark, the largest self-reported group is White at 87.1%. The next largest groups are Two or More Races (8.9%) and American Indian/Alaska Native (3.0%).
The bar chart below shows how Kaczmark 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 Kaczmark surname at the time of the 2020 Census, not any inherent property of the name itself.
- White87.1% · 88
- Two or more races8.9% · 9
- American Indian and Alaska Native3.0% · 3
- Black or African American1.0% · 1
Timeline
Historical Census data for Kaczmark
Kaczmark 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
#142,108
National surname rank
Recorded bearers 117
+4 bearers (+3.5%)
Per 100,000 0.04
Rank movement Down 5,325 places
2020
#155,270
National surname rank
Recorded bearers 101
-16 bearers (-13.7%)
Per 100,000 0.03
Rank movement Down 13,162 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #136,783 | 113 | 0.04 | First available Census row | First available Census row |
| 2010 | #142,108 | 117 | 0.04 | +4 bearers (+3.5%) | Down 5,325 places |
| 2020 | #155,270 | 101 | 0.03 | -16 bearers (-13.7%) | Down 13,162 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 Kaczmark 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 | #142,108 | #155,270 | -9.3% |
| Count | 117 | 101 | -13.7% |
| Per 100K | 0.04 | 0.03 | -15.5% |
Between the 2010 and 2020 Census, the number of Kaczmark bearers went from 117 to 101 (-13.7% change). The surname moved down 13,162 positions in the national ranking, going from #142,108 to #155,270.
FAQ
Kaczmark surname: questions and answers
How many people in the U.S. have the surname Kaczmark?
Name Census estimates that about 116 living Americans carry the surname Kaczmark. Using the current population baseline, that works out to roughly 1 in 2,954,779 residents.
How common is Kaczmark?
Kaczmark ranks #155,270 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 101 people with the surname Kaczmark. That is different from the site's living-bearer estimate (116), 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 Kaczmark.
Has Kaczmark become more or less common over time?
Between 2010 and 2020, the surname Kaczmark went from 117 recorded bearers to 101. That is a decrease of 16 (-13.7%). In the national ranking it fell from #142,108 to #155,270.
What does the Census say about the background of Kaczmark?
Among Census respondents with the surname Kaczmark, the largest self-reported group is White at 87.1%. The next largest groups are Two or More Races (8.9%) and American Indian/Alaska Native (3.0%). 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 Kaczmark in the 2020 Census, accounting for 87.1% (88 people in the source table).
What is the full ancestry breakdown?
Kaczmark appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (87.1%), Two or More Races (8.9%), American Indian/Alaska Native (3.0%). 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 Kaczmark (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 Kaczmark mean?
A Polish surname referring to a duck farmer or duck herder. 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 Kaczmark (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 Kaczmark?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.