2000
#143,847
National surname rank
Recorded bearers 106
First available Census row
Per 100,000 0.04
Very Rare Last name
Clausman
A locational surname derived from a place name related to an enclosed or walled area.
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Clausman. That puts it at #147,221 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,636,572 residents).
This page is the full Name Census profile for the Clausman 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
130
1 in 2,636,572
Census rank
#147,221
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
113
very rare in the US
Popularity narrative
The Census Bureau recorded 113 bearers of the surname Clausman in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147221st position in the national surname ranking.
Among Census respondents with the surname Clausman, the largest self-reported group is White at 85.0%. The next largest groups are Two or More Races (7.1%) and Hispanic (5.3%).
Origin
Meaning and origin of Clausman
The surname Clausman has its origins in Germany, dating back to the early Middle Ages. It is derived from the Old German words "klus" and "man," meaning "recluse" and "man," respectively. This suggests that the name initially referred to a person who lived a secluded or hermit-like lifestyle, likely in a religious context.
The earliest recorded instances of the name can be found in various German records from the 13th and 14th centuries, such as the Codex Diplomaticus Anhaltinus and the Urkundenbuch der Stadt Leipzig. One notable bearer of the name was Heinrich Clausman, a monk and scribe who lived in the late 14th century and is known for his meticulous transcription of religious texts.
During the 15th and 16th centuries, the Clausman name appeared in various regions of Germany, including Bavaria, Saxony, and the Rhineland. In some areas, the name was also spelled as Klausman or Clausmann, reflecting regional variations in pronunciation and spelling conventions.
In the 17th century, the Clausman family gained prominence in the city of Nuremberg, where they were involved in various trades and professions. Hans Clausman (1598-1673) was a respected goldsmith and jeweler, while his son, Johann Clausman (1628-1701), became a prominent merchant and banker.
Moving into the 18th and 19th centuries, the Clausman name spread to other parts of Europe as German emigration increased. Notable individuals from this period include Friedrich Clausman (1782-1857), a German-born writer and philosopher who settled in Austria, and Karl Clausman (1815-1891), a Prussian military officer and strategist who served in the Franco-Prussian War.
In the 20th century, the Clausman name continued to be found in various parts of Germany and other European countries, as well as among German immigrant communities in North America and elsewhere. One notable figure was Hans Clausman (1910-1998), a German-born sculptor and artist who lived and worked in the United States for much of his career.
While the surname Clausman has various spelling variations and regional variations, its roots can be traced back to the medieval German tradition of naming individuals based on their occupation or way of life. Over the centuries, the name has been borne by individuals from various walks of life, including religious figures, artisans, merchants, and military personnel.
Demographics
Ancestry and ethnicity for Clausman
Among Census respondents with the surname Clausman, the largest self-reported group is White at 85.0%. The next largest groups are Two or More Races (7.1%) and Hispanic (5.3%).
The bar chart below shows how Clausman 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 Clausman surname at the time of the 2020 Census, not any inherent property of the name itself.
- White85.0% · 96
- Two or more races7.1% · 8
- Hispanic or Latino5.3% · 6
- Black or African American0.9% · 1
- Asian and Pacific Islander0.9% · 1
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Clausman
Clausman 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
#139,228
National surname rank
Recorded bearers 120
+14 bearers (+13.2%)
Per 100,000 0.04
Rank movement Up 4,619 places
2020
#147,221
National surname rank
Recorded bearers 113
-7 bearers (-5.8%)
Per 100,000 0.04
Rank movement Down 7,993 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #143,847 | 106 | 0.04 | First available Census row | First available Census row |
| 2010 | #139,228 | 120 | 0.04 | +14 bearers (+13.2%) | Up 4,619 places |
| 2020 | #147,221 | 113 | 0.04 | -7 bearers (-5.8%) | Down 7,993 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 Clausman 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 | #139,228 | #147,221 | -5.7% |
| Count | 120 | 113 | -5.8% |
| Per 100K | 0.04 | 0.04 | -5.5% |
Between the 2010 and 2020 Census, the number of Clausman bearers went from 120 to 113 (-5.8% change). The surname moved down 7,993 positions in the national ranking, going from #139,228 to #147,221.
FAQ
Clausman surname: questions and answers
How many people in the U.S. have the surname Clausman?
Name Census estimates that about 130 living Americans carry the surname Clausman. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
How common is Clausman?
Clausman ranks #147,221 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 113 people with the surname Clausman. That is different from the site's living-bearer estimate (130), 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 Clausman.
Has Clausman become more or less common over time?
Between 2010 and 2020, the surname Clausman went from 120 recorded bearers to 113. That is a decrease of 7 (-5.8%). In the national ranking it fell from #139,228 to #147,221.
What does the Census say about the background of Clausman?
Among Census respondents with the surname Clausman, the largest self-reported group is White at 85.0%. The next largest groups are Two or More Races (7.1%) and Hispanic (5.3%). 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 Clausman in the 2020 Census, accounting for 85.0% (96 people in the source table).
What is the full ancestry breakdown?
Clausman appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (85.0%), Two or More Races (7.1%), Hispanic (5.3%). 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 Clausman (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 Clausman mean?
A locational surname derived from a place name related to an enclosed or walled area. 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 Clausman (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 Clausman?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.