2000
#62,577
National surname rank
Recorded bearers 299
First available Census row
Per 100,000 0.11
Very Rare Last name
Kuczkowski
A Polish surname derived from a nickname meaning "curly-haired" or "crinkly-haired".
According to the 2020 US Census Bureau surname tables, roughly 367 Americans carry the last name Kuczkowski. That puts it at #66,670 in the national surname ranking, appearing at a frequency of 0.11 per 100,000 people (about 1 in 933,936 residents).
This page is the full Name Census profile for the Kuczkowski 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
367
1 in 933,936
Census rank
#66,670
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
320
very rare in the US
Popularity narrative
The Census Bureau recorded 320 bearers of the surname Kuczkowski in its 2020 decennial surname file. At a rate of 0.11 per 100,000 residents, it holds the 66670th position in the national surname ranking.
Among Census respondents with the surname Kuczkowski, the largest self-reported group is White at 95.6%. The next largest groups are Hispanic (2.2%) and Two or More Races (1.3%).
Origin
Meaning and origin of Kuczkowski
The surname KUCZKOWSKI originates from Poland, with its earliest recorded examples dating back to the 16th century. The name is derived from the Polish word "kuczka," which translates to "a small hut" or "a small house." This suggests that the name may have been given to someone who lived in a modest dwelling or was associated with such a structure.
KUCZKOWSKI is a Polish patronymic surname, meaning it was initially formed by adding the possessive suffix "-owski" to the root word "Kuczka." This naming convention was common in Poland, as it indicated the individual's relation to their father or ancestor. The surname's spelling has remained relatively consistent throughout its history, with minor variations such as "Kuckowski" or "Kuczkowsky" appearing in some historical records.
One of the earliest documented instances of the KUCZKOWSKI surname can be found in the parish records of the village of Zabierzów, located in the Kraków Voivodeship of southern Poland. In 1598, a man named Jan KUCZKOWSKI was listed as a resident of the village, providing evidence of the name's existence during that time period.
In the 17th century, the KUCZKOWSKI surname appeared in various historical documents and records across different regions of Poland. Notably, in 1642, a certain Maciej KUCZKOWSKI was mentioned in the records of the town of Nowy Sącz, located in the Lesser Poland region.
During the 18th century, the KUCZKOWSKI name gained prominence with the birth of Franciszek KUCZKOWSKI (1738-1810), a Polish painter and engraver who is considered one of the most important representatives of the Polish Baroque and Rococo art movements. His works can be found in various churches and museums across Poland.
Another notable figure bearing the KUCZKOWSKI surname was Józef KUCZKOWSKI (1796-1861), a Polish writer, journalist, and political activist. He was a prominent figure in the Polish national liberation movement and played a significant role in the November Uprising of 1830-1831 against the Russian Empire.
In the 19th century, the KUCZKOWSKI surname continued to be widely present in Poland, with several individuals making significant contributions in various fields. One such person was Karol KUCZKOWSKI (1842-1912), a Polish architect and urban planner who designed numerous notable buildings in Warsaw, including the Grand Theatre and the Warsaw Philharmonic.
As the KUCZKOWSKI name spread across Poland over the centuries, it also found its way into other regions and countries through migration and diaspora. Today, individuals with this surname can be found not only in Poland but also in various parts of Europe, North America, and other parts of the world where Polish communities have settled.
Demographics
Ancestry and ethnicity for Kuczkowski
Among Census respondents with the surname Kuczkowski, the largest self-reported group is White at 95.6%. The next largest groups are Hispanic (2.2%) and Two or More Races (1.3%).
The bar chart below shows how Kuczkowski 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 Kuczkowski surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.6% · 306
- Hispanic or Latino2.2% · 7
- Two or more races1.3% · 4
- Asian and Pacific Islander0.6% · 2
- Black or African American0.3% · 1
Timeline
Historical Census data for Kuczkowski
Kuczkowski 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
#61,585
National surname rank
Recorded bearers 326
+27 bearers (+9.0%)
Per 100,000 0.11
Rank movement Up 992 places
2020
#66,670
National surname rank
Recorded bearers 320
-6 bearers (-1.8%)
Per 100,000 0.11
Rank movement Down 5,085 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #62,577 | 299 | 0.11 | First available Census row | First available Census row |
| 2010 | #61,585 | 326 | 0.11 | +27 bearers (+9.0%) | Up 992 places |
| 2020 | #66,670 | 320 | 0.11 | -6 bearers (-1.8%) | Down 5,085 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 Kuczkowski 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 | #61,585 | #66,670 | -8.3% |
| Count | 326 | 320 | -1.8% |
| Per 100K | 0.11 | 0.11 | -2.7% |
Between the 2010 and 2020 Census, the number of Kuczkowski bearers went from 326 to 320 (-1.8% change). The surname moved down 5,085 positions in the national ranking, going from #61,585 to #66,670.
FAQ
Kuczkowski surname: questions and answers
How many people in the U.S. have the surname Kuczkowski?
Name Census estimates that about 367 living Americans carry the surname Kuczkowski. Using the current population baseline, that works out to roughly 1 in 933,936 residents.
How common is Kuczkowski?
Kuczkowski ranks #66,670 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.11 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 320 people with the surname Kuczkowski. That is different from the site's living-bearer estimate (367), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.11 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.11 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 Kuczkowski.
Has Kuczkowski become more or less common over time?
Between 2010 and 2020, the surname Kuczkowski went from 326 recorded bearers to 320. That is a decrease of 6 (-1.8%). In the national ranking it fell from #61,585 to #66,670.
What does the Census say about the background of Kuczkowski?
Among Census respondents with the surname Kuczkowski, the largest self-reported group is White at 95.6%. The next largest groups are Hispanic (2.2%) and Two or More Races (1.3%). 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 Kuczkowski in the 2020 Census, accounting for 95.6% (306 people in the source table).
What is the full ancestry breakdown?
Kuczkowski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.6%), Hispanic (2.2%), Two or More Races (1.3%). 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 Kuczkowski (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 Kuczkowski mean?
A Polish surname derived from a nickname meaning "curly-haired" or "crinkly-haired". 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 Kuczkowski (0.11 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 Kuczkowski?
Our sister site HowManyOfMe.org answers how many people have the surname Kuczkowski at a glance, with the living-bearer count up front.