2000
#66,676
National surname rank
Recorded bearers 277
First available Census row
Per 100,000 0.10
Very Rare Last name
Kornhauser
A German surname derived from "Korn" meaning "grain" and "Hausen" meaning "house", likely referring to a grain merchant or farmer.
According to the 2020 US Census Bureau surname tables, roughly 297 Americans carry the last name Kornhauser. That puts it at #79,345 in the national surname ranking, appearing at a frequency of 0.09 per 100,000 people (about 1 in 1,154,055 residents).
This page is the full Name Census profile for the Kornhauser 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
297
1 in 1,154,055
Census rank
#79,345
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
259
very rare in the US
Popularity narrative
The Census Bureau recorded 259 bearers of the surname Kornhauser in its 2020 decennial surname file. At a rate of 0.09 per 100,000 residents, it holds the 79345th position in the national surname ranking.
Among Census respondents with the surname Kornhauser, the largest self-reported group is White at 88.4%. The next largest groups are Hispanic (6.9%) and Asian/Pacific Islander (2.7%).
Origin
Meaning and origin of Kornhauser
The surname Kornhauser originated in Germany and Austria in the 14th century. It is derived from the German words "Korn" meaning grain or corn, and "Hauser" meaning a house or dwelling. The name likely referred to someone who lived in a house where grain was stored or sold.
One of the earliest recorded instances of the surname Kornhauser can be found in a document from the city of Augsburg, Germany, dated 1392, which mentions a Konrad Kornhauser. The name also appears in records from various towns and villages in southern Germany and Austria throughout the 15th and 16th centuries.
In the late 16th century, the surname Kornhauser was occasionally spelled with variations such as Kornhawser, Kornhäuser, or Kornheuser. These spellings reflect regional dialects and the evolving standardization of the German language.
One notable bearer of the Kornhauser name was Hans Kornhauser (1519-1592), a master baker and guild member in the town of Rothenburg ob der Tauber, Germany. His bakery and residence were located in a building that still stands today, known as the Kornhauserhaus.
Another person of historical significance was Johann Kornhauser (1683-1760), a Lutheran theologian and author from Saxony. He wrote several influential works on theology and church doctrine during the Age of Enlightenment.
In the 19th century, a branch of the Kornhauser family emigrated from Bavaria to the United States, settling in Ohio. One of their descendants, Albert Kornhauser (1869-1933), became a successful businessman and philanthropist in Cleveland.
Other notable individuals with the surname Kornhauser include Sigmund Kornhauser (1863-1935), an Austrian painter and illustrator known for his landscapes and portraits, and Erna Kornhauser (1905-1986), a German actress who appeared in several films during the Weimar Republic era.
While the name Kornhauser is not as common today as it once was in its regions of origin, it continues to be a part of the cultural heritage of German-speaking communities and their diasporas around the world.
Demographics
Ancestry and ethnicity for Kornhauser
Among Census respondents with the surname Kornhauser, the largest self-reported group is White at 88.4%. The next largest groups are Hispanic (6.9%) and Asian/Pacific Islander (2.7%).
The bar chart below shows how Kornhauser 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 Kornhauser surname at the time of the 2020 Census, not any inherent property of the name itself.
- White88.4% · 229
- Hispanic or Latino6.9% · 18
- Asian and Pacific Islander2.7% · 7
- Two or more races1.2% · 3
- American Indian and Alaska Native0.8% · 2
Timeline
Historical Census data for Kornhauser
Kornhauser 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
#73,005
National surname rank
Recorded bearers 266
-11 bearers (-4.0%)
Per 100,000 0.09
Rank movement Down 6,329 places
2020
#79,345
National surname rank
Recorded bearers 259
-7 bearers (-2.6%)
Per 100,000 0.09
Rank movement Down 6,340 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #66,676 | 277 | 0.10 | First available Census row | First available Census row |
| 2010 | #73,005 | 266 | 0.09 | -11 bearers (-4.0%) | Down 6,329 places |
| 2020 | #79,345 | 259 | 0.09 | -7 bearers (-2.6%) | Down 6,340 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 Kornhauser 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 | #73,005 | #79,345 | -8.7% |
| Count | 266 | 259 | -2.6% |
| Per 100K | 0.09 | 0.09 | -3.7% |
Between the 2010 and 2020 Census, the number of Kornhauser bearers went from 266 to 259 (-2.6% change). The surname moved down 6,340 positions in the national ranking, going from #73,005 to #79,345.
FAQ
Kornhauser surname: questions and answers
How many people in the U.S. have the surname Kornhauser?
Name Census estimates that about 297 living Americans carry the surname Kornhauser. Using the current population baseline, that works out to roughly 1 in 1,154,055 residents.
How common is Kornhauser?
Kornhauser ranks #79,345 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.09 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 259 people with the surname Kornhauser. That is different from the site's living-bearer estimate (297), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.09 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.09 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 Kornhauser.
Has Kornhauser become more or less common over time?
Between 2010 and 2020, the surname Kornhauser went from 266 recorded bearers to 259. That is a decrease of 7 (-2.6%). In the national ranking it fell from #73,005 to #79,345.
What does the Census say about the background of Kornhauser?
Among Census respondents with the surname Kornhauser, the largest self-reported group is White at 88.4%. The next largest groups are Hispanic (6.9%) and Asian/Pacific Islander (2.7%). 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 Kornhauser in the 2020 Census, accounting for 88.4% (229 people in the source table).
What is the full ancestry breakdown?
Kornhauser appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (88.4%), Hispanic (6.9%), Asian/Pacific Islander (2.7%). 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 Kornhauser (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 Kornhauser mean?
A German surname derived from "Korn" meaning "grain" and "Hausen" meaning "house", likely referring to a grain merchant or farmer. 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 Kornhauser (0.09 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 Kornhauser?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.