2000
#129,619
National surname rank
Recorded bearers 121
First available Census row
Per 100,000 0.04
Very Rare Last name
Kojetin
A locational surname referring to someone from Kojetin, a town in eastern Czech Republic.
According to the 2020 US Census Bureau surname tables, roughly 135 Americans carry the last name Kojetin. That puts it at #143,511 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,538,921 residents).
This page is the full Name Census profile for the Kojetin 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
135
1 in 2,538,921
Census rank
#143,511
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
118
very rare in the US
Popularity narrative
The Census Bureau recorded 118 bearers of the surname Kojetin in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 143511th position in the national surname ranking.
Among Census respondents with the surname Kojetin, the largest self-reported group is White at 94.9%. The next largest groups are Two or More Races (4.2%) and American Indian/Alaska Native (0.8%).
Origin
Meaning and origin of Kojetin
The surname Kojetin has its origins in the Czech Republic, with records dating back to the 13th century. It is believed to be derived from the name of a town or village called Kojetín, located in the Přerov District of the Olomouc Region. The name is likely derived from the Czech word "kojit," meaning "to suckle" or "to nurse," suggesting that the area may have been known for its dairy farming or livestock rearing.
One of the earliest recorded instances of the name Kojetin can be found in a document from 1263, which mentions a certain Jindřich Kojetin, who was a landowner in the region. Another notable early reference is in the Codex Diplomaticus et Epistolaris Regni Bohemiae, a collection of medieval Czech documents, which includes a mention of a Petr Kojetin in 1301.
During the 15th century, a notable figure named Jan Kojetin lived in the town of Kutná Hora, which was an important mining center at the time. He was a respected merchant and member of the town council, and his name appears in several municipal records from that era.
In the 16th century, the name Kojetin appears in connection with a family of notable scholars and intellectuals. Václav Kojetin (1509-1576) was a renowned humanist and educator who taught at the University of Prague. His nephew, Jiří Kojetin (1538-1611), followed in his footsteps and became a respected philosopher and theologian.
In the 18th century, a military officer named František Kojetin (1712-1789) gained recognition for his service in the Austro-Prussian Wars. He rose through the ranks and became a respected commander, leading troops in several significant battles.
Another notable figure was the artist and painter Antonín Kojetin (1821-1895), who was known for his landscape paintings depicting the Czech countryside. His works can be found in several prominent art collections throughout the Czech Republic.
While the surname Kojetin has its roots in the Czech Republic, it has since spread to other parts of the world through emigration and migration. However, its origins can be traced back to the small town of Kojetín and the surrounding region, where it has been present for over seven centuries.
Demographics
Ancestry and ethnicity for Kojetin
Among Census respondents with the surname Kojetin, the largest self-reported group is White at 94.9%. The next largest groups are Two or More Races (4.2%) and American Indian/Alaska Native (0.8%).
The bar chart below shows how Kojetin 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 Kojetin surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.9% · 112
- Two or more races4.2% · 5
- American Indian and Alaska Native0.8% · 1
Timeline
Historical Census data for Kojetin
Kojetin 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
#145,220
National surname rank
Recorded bearers 114
-7 bearers (-5.8%)
Per 100,000 0.04
Rank movement Down 15,601 places
2020
#143,511
National surname rank
Recorded bearers 118
+4 bearers (+3.5%)
Per 100,000 0.04
Rank movement Up 1,709 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #129,619 | 121 | 0.04 | First available Census row | First available Census row |
| 2010 | #145,220 | 114 | 0.04 | -7 bearers (-5.8%) | Down 15,601 places |
| 2020 | #143,511 | 118 | 0.04 | +4 bearers (+3.5%) | Up 1,709 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 Kojetin 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 | #145,220 | #143,511 | 1.2% |
| Count | 114 | 118 | 3.5% |
| Per 100K | 0.04 | 0.04 | -1.3% |
Between the 2010 and 2020 Census, the number of Kojetin bearers went from 114 to 118 (+3.5% change). The surname moved up 1,709 positions in the national ranking, going from #145,220 to #143,511.
FAQ
Kojetin surname: questions and answers
How many people in the U.S. have the surname Kojetin?
Name Census estimates that about 135 living Americans carry the surname Kojetin. Using the current population baseline, that works out to roughly 1 in 2,538,921 residents.
How common is Kojetin?
Kojetin ranks #143,511 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 118 people with the surname Kojetin. That is different from the site's living-bearer estimate (135), 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 Kojetin.
Has Kojetin become more or less common over time?
Between 2010 and 2020, the surname Kojetin went from 114 recorded bearers to 118. That is an increase of 4 (+3.5%). In the national ranking it rose from #145,220 to #143,511.
What does the Census say about the background of Kojetin?
Among Census respondents with the surname Kojetin, the largest self-reported group is White at 94.9%. The next largest groups are Two or More Races (4.2%) and American Indian/Alaska Native (0.8%). 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 Kojetin in the 2020 Census, accounting for 94.9% (112 people in the source table).
What is the full ancestry breakdown?
Kojetin appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.9%), Two or More Races (4.2%), American Indian/Alaska Native (0.8%). 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 Kojetin (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 Kojetin mean?
A locational surname referring to someone from Kojetin, a town in eastern Czech Republic. 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 Kojetin (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 people have the surname Kojetin?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.