2010
#138,304
National surname rank
Recorded bearers 121
First available Census row
Per 100,000 0.04
Very Rare Last name
Kruchowski
A Polish locational surname derived from a place name and likely referring to someone from a particular place.
According to the 2020 US Census Bureau surname tables, roughly 132 Americans carry the last name Kruchowski. 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 Kruchowski 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 Kruchowski 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 Kruchowski, the largest self-reported group is White at 98.3%. The next largest groups are Black (1.7%).
Origin
Meaning and origin of Kruchowski
The surname Kruchowski is of Polish origin, derived from the historic region of Kujawy in north-central Poland. It is believed to have emerged during the late medieval period, around the 15th or 16th century. The name likely originated from the Polish word "kruch," meaning "brittle" or "fragile," potentially referring to an individual or family involved in occupations related to pottery, ceramics, or glassmaking.
One of the earliest recorded instances of the Kruchowski surname can be found in the Akta Grodzkie, a collection of historical court records from the Kingdom of Poland, dating back to the 16th century. These documents mention individuals with the surname Kruchowski residing in various towns and villages across the Kujawy region.
In the 17th century, the Kruchowski name appeared in the registers of the Catholic Church in the town of Radziejów, located in the heart of the Kujawy region. These records provide valuable insights into the lives and genealogies of Kruchowski families during that era.
Notably, in the 18th century, a prominent figure named Jan Kruchowski (1730-1802) gained recognition as a renowned Polish painter and architect. His works, including frescoes and architectural designs, can be found in churches and buildings throughout Poland, particularly in the cities of Warsaw and Krakow.
Another notable individual bearing the Kruchowski surname was Stanisław Kruchowski (1857-1921), a Polish engineer and industrialist who played a significant role in the development of the steel industry in the Congress Kingdom of Poland during the late 19th and early 20th centuries.
In the 20th century, Jerzy Kruchowski (1914-1988) made significant contributions to the field of archaeology in Poland. He conducted extensive excavations and research on ancient settlements and burial sites, contributing to a deeper understanding of the region's prehistoric past.
Additionally, the Kruchowski name has been associated with various place names and geographical locations within the Kujawy region, such as the village of Kruchów, which likely derived its name from the surname itself, reflecting the historical presence of Kruchowski families in the area.
While the Kruchowski surname may not be as widely recognized as some other Polish surnames, it has a rich history deeply rooted in the Kujawy region, with notable individuals who have left their mark in various fields, including art, industry, and archaeology.
Demographics
Ancestry and ethnicity for Kruchowski
Among Census respondents with the surname Kruchowski, the largest self-reported group is White at 98.3%. The next largest groups are Black (1.7%).
The bar chart below shows how Kruchowski 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 Kruchowski surname at the time of the 2020 Census, not any inherent property of the name itself.
- White98.3% · 113
- Black or African American1.7% · 2
Timeline
Historical Census data for Kruchowski
Kruchowski appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#145,757
National surname rank
Recorded bearers 115
-6 bearers (-5.0%)
Per 100,000 0.04
Rank movement Down 7,453 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #138,304 | 121 | 0.04 | First available Census row | First available Census row |
| 2020 | #145,757 | 115 | 0.04 | -6 bearers (-5.0%) | Down 7,453 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 Kruchowski 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 | #138,304 | #145,757 | -5.4% |
| Count | 121 | 115 | -5.0% |
| Per 100K | 0.04 | 0.04 | -3.8% |
Between the 2010 and 2020 Census, the number of Kruchowski bearers went from 121 to 115 (-5.0% change). The surname moved down 7,453 positions in the national ranking, going from #138,304 to #145,757.
FAQ
Kruchowski surname: questions and answers
How many people in the U.S. have the surname Kruchowski?
Name Census estimates that about 132 living Americans carry the surname Kruchowski. Using the current population baseline, that works out to roughly 1 in 2,596,624 residents.
How common is Kruchowski?
Kruchowski 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 Kruchowski. 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 Kruchowski.
Has Kruchowski become more or less common over time?
Between 2010 and 2020, the surname Kruchowski went from 121 recorded bearers to 115. That is a decrease of 6 (-5.0%). In the national ranking it fell from #138,304 to #145,757.
What does the Census say about the background of Kruchowski?
Among Census respondents with the surname Kruchowski, the largest self-reported group is White at 98.3%. The next largest groups are Black (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 Kruchowski in the 2020 Census, accounting for 98.3% (113 people in the source table).
What is the full ancestry breakdown?
Kruchowski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (98.3%), Black (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 Kruchowski (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 Kruchowski mean?
A Polish locational surname derived from a place name and likely referring to someone from a particular place. 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 Kruchowski (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 Americans have the surname Kruchowski?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.