2000
#141,788
National surname rank
Recorded bearers 108
First available Census row
Per 100,000 0.04
Very Rare Last name
Krupin
A surname likely derived from the occupational term for a baker or miller in Russia.
According to the 2020 US Census Bureau surname tables, roughly 126 Americans carry the last name Krupin. That puts it at #149,446 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,720,273 residents).
This page is the full Name Census profile for the Krupin 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
126
1 in 2,720,273
Census rank
#149,446
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
110
very rare in the US
Popularity narrative
The Census Bureau recorded 110 bearers of the surname Krupin in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 149446th position in the national surname ranking.
Among Census respondents with the surname Krupin, the largest self-reported group is White at 99.1%. The next largest groups are Two or More Races (0.9%).
Origin
Meaning and origin of Krupin
The surname KRUPIN has its origins in Russia, tracing back to the 16th century. It is derived from the Russian word "krup", which means "groats" or "grain". This suggests that the name may have been initially associated with individuals involved in the production, processing, or trade of grains or related agricultural activities.
One of the earliest recorded instances of the name KRUPIN can be found in the Velvet Book, a 16th-century document that served as a register of nobility in Russia. The name appears in several entries, indicating its presence among the noble classes during that period.
In the 17th century, the KRUPIN surname is mentioned in various historical records, including land ownership documents and census records from the Tver region of Russia. This region, situated northwest of Moscow, was known for its fertile lands and agricultural production, further reinforcing the potential connection between the name and grain-related occupations.
The KRUPIN surname has also been associated with several notable individuals throughout history. One such figure was Ivan Krupin, a prominent merchant and landowner who lived in the late 17th century. His successful business ventures and landholdings in the Ryazan region of Russia contributed to the family's wealth and influence.
Another noteworthy bearer of the KRUPIN surname was Yakov Krupin, a skilled artisan and clockmaker who lived in Moscow during the 18th century. His intricate and highly regarded timepieces were sought after by the Russian nobility and aristocracy.
In the 19th century, the KRUPIN family produced several scholars and academics. Nikolai Krupin (1802-1879) was a renowned linguist and professor at the University of St. Petersburg, where he made significant contributions to the study of Slavic languages.
Evgenia Krupina (1855-1923) was a pioneering female scientist and one of the first women to receive a doctoral degree in chemistry in Russia. Her research focused on organic chemistry and laid the foundation for further advancements in the field.
Vasily Krupin (1876-1942) was a highly respected military officer who served in the Imperial Russian Army and later in the Red Army during the Russian Civil War. He played a pivotal role in several key battles and was awarded numerous military honors for his bravery and leadership.
While the name KRUPIN has its roots in Russia, it has since spread to other parts of the world through migration and diaspora communities. However, its historical origins and connections to the grain and agricultural industries of Russia remain an integral part of its etymology and significance.
Demographics
Ancestry and ethnicity for Krupin
Among Census respondents with the surname Krupin, the largest self-reported group is White at 99.1%. The next largest groups are Two or More Races (0.9%).
The bar chart below shows how Krupin 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 Krupin surname at the time of the 2020 Census, not any inherent property of the name itself.
- White99.1% · 109
- Two or more races0.9% · 1
Timeline
Historical Census data for Krupin
Krupin 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
#144,141
National surname rank
Recorded bearers 115
+7 bearers (+6.5%)
Per 100,000 0.04
Rank movement Down 2,353 places
2020
#149,446
National surname rank
Recorded bearers 110
-5 bearers (-4.3%)
Per 100,000 0.04
Rank movement Down 5,305 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #141,788 | 108 | 0.04 | First available Census row | First available Census row |
| 2010 | #144,141 | 115 | 0.04 | +7 bearers (+6.5%) | Down 2,353 places |
| 2020 | #149,446 | 110 | 0.04 | -5 bearers (-4.3%) | Down 5,305 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 Krupin 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 | #149,446 | -3.7% |
| Count | 115 | 110 | -4.3% |
| Per 100K | 0.04 | 0.04 | -8.0% |
Between the 2010 and 2020 Census, the number of Krupin bearers went from 115 to 110 (-4.3% change). The surname moved down 5,305 positions in the national ranking, going from #144,141 to #149,446.
FAQ
Krupin surname: questions and answers
How many people in the U.S. have the surname Krupin?
Name Census estimates that about 126 living Americans carry the surname Krupin. Using the current population baseline, that works out to roughly 1 in 2,720,273 residents.
How common is Krupin?
Krupin ranks #149,446 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 110 people with the surname Krupin. That is different from the site's living-bearer estimate (126), 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 Krupin.
Has Krupin become more or less common over time?
Between 2010 and 2020, the surname Krupin went from 115 recorded bearers to 110. That is a decrease of 5 (-4.3%). In the national ranking it fell from #144,141 to #149,446.
What does the Census say about the background of Krupin?
Among Census respondents with the surname Krupin, the largest self-reported group is White at 99.1%. The next largest groups are Two or More Races (0.9%). 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 Krupin in the 2020 Census, accounting for 99.1% (109 people in the source table).
What is the full ancestry breakdown?
Krupin appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (99.1%), Two or More Races (0.9%). 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 Krupin (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 Krupin mean?
A surname likely derived from the occupational term for a baker or miller in Russia. 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 Krupin (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 are called Krupin?
For a quick modern take, check how many people have the last name Krupin on our sister site HowManyOfMe.org.