2000
#124,109
National surname rank
Recorded bearers 128
First available Census row
Per 100,000 0.05
Very Rare Last name
Janasik
A Polish surname derived from the given name Jan, meaning "gracious gift from God".
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Janasik. 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 Janasik 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 Janasik 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 Janasik, the largest self-reported group is White at 94.7%. The next largest groups are Two or More Races (3.5%) and Hispanic (1.8%).
Origin
Meaning and origin of Janasik
The surname Janasik has its origins in Poland, emerging in the late 15th century. It is believed to be derived from the Old Polish word "janas," which means "John" or "Yohanan" in Hebrew. This suggests that the name may have been initially used as a patronymic, referring to the son of a man named John or Yohanan.
One of the earliest documented references to the Janasik surname can be found in the records of the town of Krakow, where a certain Jakub Janasik is mentioned in a document dated 1492. This record provides evidence of the name's existence during the late medieval period in Poland.
In the 16th century, the Janasik surname appeared in various Polish historical records, such as parish registers and tax rolls. One notable bearer of this name was Jan Janasik, a prominent merchant from the city of Gdansk, who lived in the latter half of the 16th century.
The Janasik surname has also been linked to several place names in Poland, such as the village of Janasikow in the Masovian Voivodeship. It is possible that the name may have originated from this or a similar location, with early bearers taking their surname from the place where they resided.
Throughout history, several notable individuals have carried the Janasik surname. One such figure was Maciej Janasik (1655-1720), a Polish Catholic priest and theologian who served as the rector of the Jagiellonian University in Krakow.
Another prominent bearer of the Janasik name was Stanislaw Janasik (1768-1835), a Polish military officer who fought in the Kosciuszko Uprising against Russian forces in the late 18th century.
In the 19th century, Franciszek Janasik (1824-1896) was a Polish painter and teacher who specialized in landscapes and genre scenes. His works were widely admired and can be found in several art museums throughout Poland.
The 20th century saw the rise of Andrzej Janasik (1920-1997), a renowned Polish actor and theater director. He was particularly known for his performances in classic Polish plays and his work in promoting the arts during the communist era.
Finally, Jerzy Janasik (born 1942) is a contemporary Polish writer and poet, whose works often explore themes of identity, memory, and the human condition. He has received numerous literary awards and is considered one of the most important voices in modern Polish literature.
Demographics
Ancestry and ethnicity for Janasik
Among Census respondents with the surname Janasik, the largest self-reported group is White at 94.7%. The next largest groups are Two or More Races (3.5%) and Hispanic (1.8%).
The bar chart below shows how Janasik 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 Janasik surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.7% · 107
- Two or more races3.5% · 4
- Hispanic or Latino1.8% · 2
Timeline
Historical Census data for Janasik
Janasik 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
#119,508
National surname rank
Recorded bearers 145
+17 bearers (+13.3%)
Per 100,000 0.05
Rank movement Up 4,601 places
2020
#147,221
National surname rank
Recorded bearers 113
-32 bearers (-22.1%)
Per 100,000 0.04
Rank movement Down 27,713 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #124,109 | 128 | 0.05 | First available Census row | First available Census row |
| 2010 | #119,508 | 145 | 0.05 | +17 bearers (+13.3%) | Up 4,601 places |
| 2020 | #147,221 | 113 | 0.04 | -32 bearers (-22.1%) | Down 27,713 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 Janasik 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 | #119,508 | #147,221 | -23.2% |
| Count | 145 | 113 | -22.1% |
| Per 100K | 0.05 | 0.04 | -24.4% |
Between the 2010 and 2020 Census, the number of Janasik bearers went from 145 to 113 (-22.1% change). The surname moved down 27,713 positions in the national ranking, going from #119,508 to #147,221.
FAQ
Janasik surname: questions and answers
How many people in the U.S. have the surname Janasik?
Name Census estimates that about 130 living Americans carry the surname Janasik. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
How common is Janasik?
Janasik 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 Janasik. 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 Janasik.
Has Janasik become more or less common over time?
Between 2010 and 2020, the surname Janasik went from 145 recorded bearers to 113. That is a decrease of 32 (-22.1%). In the national ranking it fell from #119,508 to #147,221.
What does the Census say about the background of Janasik?
Among Census respondents with the surname Janasik, the largest self-reported group is White at 94.7%. The next largest groups are Two or More Races (3.5%) and Hispanic (1.8%). 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 Janasik in the 2020 Census, accounting for 94.7% (107 people in the source table).
What is the full ancestry breakdown?
Janasik appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.7%), Two or More Races (3.5%), Hispanic (1.8%). 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 Janasik (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 Janasik mean?
A Polish surname derived from the given name Jan, meaning "gracious gift from God". 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 Janasik (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 Janasik?
Find out how many people have the surname Janasik on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.