2010
#160,975
National surname rank
Recorded bearers 100
First available Census row
Per 100,000 0.03
Very Rare Last name
Kruglov
A Russian surname referring to someone who was round or rotund.
According to the 2020 US Census Bureau surname tables, roughly 135 Americans carry the last name Kruglov. 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 Kruglov 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 Kruglov 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 Kruglov, the largest self-reported group is White at 98.3%. The next largest groups are Two or More Races (1.7%).
Origin
Meaning and origin of Kruglov
The surname Kruglov is of Russian origin, originating in the 16th century. It is a locational name derived from the word "krug", which means "circle" or "ring" in Russian. This suggests that the name was likely given to someone who lived near a circular earthwork or fortification, or possibly near a bend in a river or road.
One of the earliest recorded instances of the name Kruglov can be found in the Pistsovye Knigi (Census Books) of the Moscow region from the late 16th century. These books were used to record land ownership and taxation data, indicating that the name was already established in the Moscow area during this time period.
The Kruglov surname is also mentioned in the Velizh Chronicles, a historical document detailing the events in the town of Velizh (now part of Smolensk Oblast) in the 17th century. These chronicles mention a prominent figure named Ivan Kruglov, who was a local landowner and military leader during the Polish-Russian War of 1654-1667.
In the 18th century, a notable Kruglov was Yegor Kruglov (1714-1788), a Russian mathematician and astronomer who made significant contributions to the development of celestial mechanics. He was a member of the Russian Academy of Sciences and served as the director of the St. Petersburg Observatory.
Another historically significant Kruglov was Aleksandr Kruglov (1853-1915), a Russian revolutionary and political activist who was involved in the Narodnaya Volya (People's Will) movement. He was arrested and exiled to Siberia for his activities against the Tsarist regime.
In the 20th century, a famous bearer of the Kruglov surname was Sergei Kruglov (1911-1990), a Soviet military commander who played a significant role in World War II. He was awarded the title of Hero of the Soviet Union for his bravery and leadership during the Battle of Stalingrad.
Other notable individuals with the Kruglov surname include Aleksei Kruglov (1897-1937), a Soviet military commander who was executed during the Great Purge, and Valentin Kruglov (1928-2015), a Soviet and Russian artist known for his landscape paintings and illustrations.
Demographics
Ancestry and ethnicity for Kruglov
Among Census respondents with the surname Kruglov, the largest self-reported group is White at 98.3%. The next largest groups are Two or More Races (1.7%).
The bar chart below shows how Kruglov 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 Kruglov surname at the time of the 2020 Census, not any inherent property of the name itself.
- White98.3% · 116
- Two or more races1.7% · 2
Timeline
Historical Census data for Kruglov
Kruglov 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
#143,511
National surname rank
Recorded bearers 118
+18 bearers (+18.0%)
Per 100,000 0.04
Rank movement Up 17,464 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #160,975 | 100 | 0.03 | First available Census row | First available Census row |
| 2020 | #143,511 | 118 | 0.04 | +18 bearers (+18.0%) | Up 17,464 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 Kruglov 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 | #160,975 | #143,511 | 10.8% |
| Count | 100 | 118 | 18.0% |
| Per 100K | 0.03 | 0.04 | 31.6% |
Between the 2010 and 2020 Census, the number of Kruglov bearers went from 100 to 118 (+18.0% change). The surname moved up 17,464 positions in the national ranking, going from #160,975 to #143,511.
FAQ
Kruglov surname: questions and answers
How many people in the U.S. have the surname Kruglov?
Name Census estimates that about 135 living Americans carry the surname Kruglov. Using the current population baseline, that works out to roughly 1 in 2,538,921 residents.
How common is Kruglov?
Kruglov 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 Kruglov. 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 Kruglov.
Has Kruglov become more or less common over time?
Between 2010 and 2020, the surname Kruglov went from 100 recorded bearers to 118. That is an increase of 18 (+18.0%). In the national ranking it rose from #160,975 to #143,511.
What does the Census say about the background of Kruglov?
Among Census respondents with the surname Kruglov, the largest self-reported group is White at 98.3%. The next largest groups are Two or More Races (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 Kruglov in the 2020 Census, accounting for 98.3% (116 people in the source table).
What is the full ancestry breakdown?
Kruglov appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (98.3%), Two or More Races (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 Kruglov (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 Kruglov mean?
A Russian surname referring to someone who was round or rotund. 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 Kruglov (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 Kruglov?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.