2000
#125,639
National surname rank
Recorded bearers 126
First available Census row
Per 100,000 0.05
Very Rare Last name
Janusch
A Germanic surname derived from a given name, likely a form of John.
According to the 2020 US Census Bureau surname tables, roughly 138 Americans carry the last name Janusch. That puts it at #142,049 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,483,727 residents).
This page is the full Name Census profile for the Janusch 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
138
1 in 2,483,727
Census rank
#142,049
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
120
very rare in the US
Popularity narrative
The Census Bureau recorded 120 bearers of the surname Janusch in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 142049th position in the national surname ranking.
Among Census respondents with the surname Janusch, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (3.3%) and Two or More Races (1.7%).
Origin
Meaning and origin of Janusch
The surname Janusch is believed to have originated in the region of modern-day Poland and the surrounding areas of Central and Eastern Europe. It is thought to be derived from the Slavic personal name Jan or Joann, which itself comes from the Hebrew name Yohanan, meaning "God is gracious."
One of the earliest known records of the name Janusch appears in a 14th-century manuscript from the town of Krakow, where it is spelled as "Janusch." This suggests that the name had already been established in the region by that time.
During the Middle Ages, the name Janusch was concentrated in areas that were part of the Kingdom of Poland and the Polish-Lithuanian Commonwealth. Some historical records indicate that a family bearing this name held lands and estates in the region of Silesia, which was then part of the Polish Crown.
In the 16th century, a notable figure named Jan Janusch was a prominent merchant and landowner in the city of Gdansk, which at the time was a major trading center within the Polish-Lithuanian Commonwealth.
Another prominent individual with the surname Janusch was Wawrzyniec Janusch, who lived in the 17th century and served as a military commander and governor of the town of Chelm during the Polish-Swedish War of 1655-1660.
In the 18th century, a scholar and writer named Franciszek Janusch gained recognition for his works on Polish history and literature. He was born in 1712 in the town of Lublin and spent much of his career as a professor at the Jagiellonian University in Krakow.
As the name Janusch spread beyond its Central European origins, it also took on various spellings in different languages and regions. For example, in some areas of Germany, it was sometimes written as "Janusch" or "Janosch."
While the surname Janusch is not among the most common names globally, it has a rich history deeply rooted in the cultural and linguistic traditions of Central and Eastern Europe, with notable bearers of the name spanning several centuries.
Demographics
Ancestry and ethnicity for Janusch
Among Census respondents with the surname Janusch, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (3.3%) and Two or More Races (1.7%).
The bar chart below shows how Janusch 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 Janusch surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.5% · 111
- Hispanic or Latino3.3% · 4
- Two or more races1.7% · 2
- Black or African American0.8% · 1
- Asian and Pacific Islander0.8% · 1
- American Indian and Alaska Native0.8% · 1
Timeline
Historical Census data for Janusch
Janusch 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
#132,206
National surname rank
Recorded bearers 128
+2 bearers (+1.6%)
Per 100,000 0.04
Rank movement Down 6,567 places
2020
#142,049
National surname rank
Recorded bearers 120
-8 bearers (-6.3%)
Per 100,000 0.04
Rank movement Down 9,843 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #125,639 | 126 | 0.05 | First available Census row | First available Census row |
| 2010 | #132,206 | 128 | 0.04 | +2 bearers (+1.6%) | Down 6,567 places |
| 2020 | #142,049 | 120 | 0.04 | -8 bearers (-6.3%) | Down 9,843 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 Janusch 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 | #132,206 | #142,049 | -7.4% |
| Count | 128 | 120 | -6.3% |
| Per 100K | 0.04 | 0.04 | 0.4% |
Between the 2010 and 2020 Census, the number of Janusch bearers went from 128 to 120 (-6.3% change). The surname moved down 9,843 positions in the national ranking, going from #132,206 to #142,049.
FAQ
Janusch surname: questions and answers
How many people in the U.S. have the surname Janusch?
Name Census estimates that about 138 living Americans carry the surname Janusch. Using the current population baseline, that works out to roughly 1 in 2,483,727 residents.
How common is Janusch?
Janusch ranks #142,049 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 120 people with the surname Janusch. That is different from the site's living-bearer estimate (138), 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 Janusch.
Has Janusch become more or less common over time?
Between 2010 and 2020, the surname Janusch went from 128 recorded bearers to 120. That is a decrease of 8 (-6.3%). In the national ranking it fell from #132,206 to #142,049.
What does the Census say about the background of Janusch?
Among Census respondents with the surname Janusch, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (3.3%) and 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 Janusch in the 2020 Census, accounting for 92.5% (111 people in the source table).
What is the full ancestry breakdown?
Janusch appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.5%), Hispanic (3.3%), 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 Janusch (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 Janusch mean?
A Germanic surname derived from a given name, likely a form of John. 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 Janusch (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 share the surname Janusch?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.