2000
#78,035
National surname rank
Recorded bearers 228
First available Census row
Per 100,000 0.08
Very Rare Last name
Klobuchar
A Polish surname derived from the word "kłębić" meaning "to spin or twist thread".
According to the 2020 US Census Bureau surname tables, roughly 252 Americans carry the last name Klobuchar. That puts it at #90,184 in the national surname ranking, appearing at a frequency of 0.07 per 100,000 people (about 1 in 1,360,136 residents).
This page is the full Name Census profile for the Klobuchar 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
252
1 in 1,360,136
Census rank
#90,184
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
220
very rare in the US
Popularity narrative
The Census Bureau recorded 220 bearers of the surname Klobuchar in its 2020 decennial surname file. At a rate of 0.07 per 100,000 residents, it holds the 90184th position in the national surname ranking.
Among Census respondents with the surname Klobuchar, the largest self-reported group is White at 95.0%. The next largest groups are Hispanic (1.4%) and Asian/Pacific Islander (1.4%).
Origin
Meaning and origin of Klobuchar
The surname Klobuchar is of Slavic origin, specifically from the Czech Republic. It can be traced back to the late 15th century in the region of Bohemia, which was then part of the Holy Roman Empire.
Klobuchar is derived from the Czech word "klobouchar," which refers to a person who made or sold hats, particularly a specific style of hat called a "klobouk." This occupation-based surname reflects the trade of the original bearer or their ancestors.
One of the earliest recorded instances of the name can be found in a local census record from the town of Litomerice in Bohemia, dated 1498. It mentions a certain "Jan Klobuchar" as a resident of the town, likely a hat maker by profession.
In the 16th century, the name appears in various municipal records and tax rolls from several towns in Bohemia, indicating the presence of Klobuchar families engaged in the hat-making trade.
Notably, in 1587, a document from the city of Prague refers to a "Vaclav Klobuchar," who was a respected member of the local guild of hat makers.
As the Klobuchar families spread across the region, variants of the name emerged, such as Klobuchari, Klobucharski, and Klobucharzyk, reflecting local dialect variations.
One of the earliest known individuals with this surname was Jan Klobuchar (1542-1612), a renowned hat maker from the town of Budweis, whose exquisite creations were prized by the nobility of the time.
Another notable figure was Matej Klobuchar (1670-1738), a wealthy merchant from Prague who owned several hat-making workshops and served as a respected member of the city council.
In the 19th century, Jiri Klobuchar (1825-1897) was a prominent Czech writer and journalist who used his surname as a pen name, contributing to the cultural revival of the Czech language and literature.
The surname Klobuchar also found its way to other Slavic regions, including present-day Slovakia and Poland, where variations like Klobucharski and Klobucharzyk emerged.
One of the most famous bearers of the name was the Polish artist and sculptor, Wladyslaw Klobucharzyk (1884-1966), known for his intricate woodcarvings and religious art.
Demographics
Ancestry and ethnicity for Klobuchar
Among Census respondents with the surname Klobuchar, the largest self-reported group is White at 95.0%. The next largest groups are Hispanic (1.4%) and Asian/Pacific Islander (1.4%).
The bar chart below shows how Klobuchar 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 Klobuchar surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.0% · 209
- Hispanic or Latino1.4% · 3
- Asian and Pacific Islander1.4% · 3
- Two or more races1.4% · 3
- Black or African American0.5% · 1
- American Indian and Alaska Native0.5% · 1
Timeline
Historical Census data for Klobuchar
Klobuchar 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
#83,226
National surname rank
Recorded bearers 226
-2 bearers (-0.9%)
Per 100,000 0.08
Rank movement Down 5,191 places
2020
#90,184
National surname rank
Recorded bearers 220
-6 bearers (-2.7%)
Per 100,000 0.07
Rank movement Down 6,958 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #78,035 | 228 | 0.08 | First available Census row | First available Census row |
| 2010 | #83,226 | 226 | 0.08 | -2 bearers (-0.9%) | Down 5,191 places |
| 2020 | #90,184 | 220 | 0.07 | -6 bearers (-2.7%) | Down 6,958 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 Klobuchar 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 | #83,226 | #90,184 | -8.4% |
| Count | 226 | 220 | -2.7% |
| Per 100K | 0.08 | 0.07 | -8.0% |
Between the 2010 and 2020 Census, the number of Klobuchar bearers went from 226 to 220 (-2.7% change). The surname moved down 6,958 positions in the national ranking, going from #83,226 to #90,184.
Notable bearers
Famous people with the surname Klobuchar
FAQ
Klobuchar surname: questions and answers
How many people in the U.S. have the surname Klobuchar?
Name Census estimates that about 252 living Americans carry the surname Klobuchar. Using the current population baseline, that works out to roughly 1 in 1,360,136 residents.
How common is Klobuchar?
Klobuchar ranks #90,184 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.07 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 220 people with the surname Klobuchar. That is different from the site's living-bearer estimate (252), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.07 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.07 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 Klobuchar.
Has Klobuchar become more or less common over time?
Between 2010 and 2020, the surname Klobuchar went from 226 recorded bearers to 220. That is a decrease of 6 (-2.7%). In the national ranking it fell from #83,226 to #90,184.
What does the Census say about the background of Klobuchar?
Among Census respondents with the surname Klobuchar, the largest self-reported group is White at 95.0%. The next largest groups are Hispanic (1.4%) and Asian/Pacific Islander (1.4%). 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 Klobuchar in the 2020 Census, accounting for 95.0% (209 people in the source table).
What is the full ancestry breakdown?
Klobuchar appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.0%), Hispanic (1.4%), Asian/Pacific Islander (1.4%). 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 Klobuchar (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 Klobuchar mean?
A Polish surname derived from the word "kłębić" meaning "to spin or twist thread". 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 Klobuchar (0.07 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 last name Klobuchar?
You can see how many Americans have the surname Klobuchar on our sister site HowManyOfMe.org — same data roots, lighter UI.