2010
#144,141
National surname rank
Recorded bearers 115
First available Census row
Per 100,000 0.04
Very Rare Last name
Kucirek
A Polish toponymic surname indicating someone from a village similarly named.
According to the 2020 US Census Bureau surname tables, roughly 118 Americans carry the last name Kucirek. 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 Kucirek 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 Kucirek 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 Kucirek, the largest self-reported group is White at 87.4%. The next largest groups are Two or More Races (10.7%) and Asian/Pacific Islander (1.9%).
Origin
Meaning and origin of Kucirek
The surname Kucirek is of Czech origin, and it first appeared in the regions of what is now the Czech Republic during the late medieval period. The name is believed to be derived from the Czech word "kucir," meaning "tuft" or "tress," suggesting that the name may have originally referred to someone with distinctive hair or a particular hairstyle.
Kucirek is a variation of the more common Czech surname Kucera, which has a similar derivation. The earliest known record of the Kucirek surname dates back to the 15th century, where it was mentioned in various municipal records and local chronicles from the Bohemian region.
One of the earliest notable individuals with the surname Kucirek was Jan Kucirek, a prominent landowner and merchant who lived in the town of Kutná Hora during the late 15th century. His name appears in several legal documents and property records from that time period.
In the 16th century, the Kucirek surname was associated with a family of skilled artisans and craftsmen who were based in the city of Prague. Notable among them was Vaclav Kucirek (1525-1598), a renowned goldsmith and jeweler who created intricate works for the nobility and the royal court.
During the 17th century, the Kucirek surname was found in various parts of Bohemia and Moravia. One noteworthy bearer of the name was Jiri Kucirek (1620-1685), a respected scholar and educator who taught at the University of Prague and authored several influential treatises on philosophy and theology.
Another significant figure with the Kucirek surname was Katerina Kucirekova (1745-1812), a celebrated Czech writer and poet whose works were widely acclaimed for their lyrical beauty and insightful commentary on social and political issues of her time.
In the 19th century, the Kucirek name gained prominence in the field of music. Vaclav Kucirek (1825-1892) was a renowned composer and conductor who played a pivotal role in the development of Czech national music and the preservation of traditional folk melodies.
As the Kucirek surname spread throughout the Czech lands and beyond, it continued to be associated with various notable individuals across different fields, including artists, scientists, and entrepreneurs. However, it is important to note that the earlier historical records and references are often more reliable in tracing the origins and evolution of this surname.
Demographics
Ancestry and ethnicity for Kucirek
Among Census respondents with the surname Kucirek, the largest self-reported group is White at 87.4%. The next largest groups are Two or More Races (10.7%) and Asian/Pacific Islander (1.9%).
The bar chart below shows how Kucirek 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 Kucirek surname at the time of the 2020 Census, not any inherent property of the name itself.
- White87.4% · 90
- Two or more races10.7% · 11
- Asian and Pacific Islander1.9% · 2
Timeline
Historical Census data for Kucirek
Kucirek 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
#154,182
National surname rank
Recorded bearers 103
-12 bearers (-10.4%)
Per 100,000 0.03
Rank movement Down 10,041 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #144,141 | 115 | 0.04 | First available Census row | First available Census row |
| 2020 | #154,182 | 103 | 0.03 | -12 bearers (-10.4%) | Down 10,041 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 Kucirek 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 | #144,141 | #154,182 | -7.0% |
| Count | 115 | 103 | -10.4% |
| Per 100K | 0.04 | 0.03 | -13.9% |
Between the 2010 and 2020 Census, the number of Kucirek bearers went from 115 to 103 (-10.4% change). The surname moved down 10,041 positions in the national ranking, going from #144,141 to #154,182.
FAQ
Kucirek surname: questions and answers
How many people in the U.S. have the surname Kucirek?
Name Census estimates that about 118 living Americans carry the surname Kucirek. Using the current population baseline, that works out to roughly 1 in 2,904,698 residents.
How common is Kucirek?
Kucirek 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 Kucirek. 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 Kucirek.
Has Kucirek become more or less common over time?
Between 2010 and 2020, the surname Kucirek went from 115 recorded bearers to 103. That is a decrease of 12 (-10.4%). In the national ranking it fell from #144,141 to #154,182.
What does the Census say about the background of Kucirek?
Among Census respondents with the surname Kucirek, the largest self-reported group is White at 87.4%. The next largest groups are Two or More Races (10.7%) and Asian/Pacific Islander (1.9%). 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 Kucirek in the 2020 Census, accounting for 87.4% (90 people in the source table).
What is the full ancestry breakdown?
Kucirek appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (87.4%), Two or More Races (10.7%), Asian/Pacific Islander (1.9%). 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 Kucirek (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 Kucirek mean?
A Polish toponymic surname indicating someone from a village similarly named. 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 Kucirek (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 have the surname Kucirek?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.