2000
#141,788
National surname rank
First available Census row
A toponymic surname referring to someone from a place called Kascsak in Hungary.
According to the 2020 US Census Bureau surname tables, roughly 122 Americans carry the last name Kascsak. That puts it at #152,339 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,809,462 residents).
This page is the full Name Census profile for the Kascsak 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
122
1 in 2,809,462
Census rank
#152,339
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
106
very rare in the US
Popularity narrative
The Census Bureau recorded 106 bearers of the surname Kascsak in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 152339th position in the national surname ranking.
Among Census respondents with the surname Kascsak, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (4.7%) and Black (2.8%).
Origin
The surname KASCSAK is of Hungarian origin, tracing its roots back to the medieval era. The name likely emerged in the late 13th or early 14th century, derived from the Old Hungarian word "kascsa," meaning duck. This suggests that the name may have initially referred to an individual who kept or hunted ducks for a living or perhaps a person with a peculiar gait resembling a duck's waddle.
One of the earliest known recorded instances of the KASCSAK surname can be found in a 1356 document from the town of Eger, where a certain Petrus Kascsak is mentioned as a landowner. This provides evidence that the name was already established in the region during that time period.
In the 15th century, a prominent figure named János KASCSAK (1425-1492) was a respected scholar and theologian who served as the Bishop of Vác, a city located approximately 30 kilometers north of Budapest. His writings and sermons were widely circulated, contributing to the spread and recognition of the KASCSAK name throughout Hungary.
During the 16th century, the village of Kascsak, located in present-day Slovakia, was named after a local landowner bearing the KASCSAK surname. This village's name has been recorded in various historical documents, further solidifying the connection between the surname and its geographical origins.
Another notable individual was István KASCSAK (1568-1638), a renowned military commander who fought against the Ottoman Empire during the Long War of the 16th and 17th centuries. His bravery and strategic skills earned him recognition among his contemporaries, and his exploits were documented in several chronicles of the time.
In the 18th century, Mihály KASCSAK (1712-1782) gained prominence as a skilled architect and builder, responsible for the construction of several churches and public buildings throughout the Hungarian countryside. His masterpieces can still be admired today, serving as a testament to his craftsmanship and the enduring legacy of the KASCSAK name.
While the KASCSAK surname may have evolved and adapted over the centuries, its Hungarian roots and historical significance remain firmly established, reflecting the rich cultural heritage of the region and the individuals who have contributed to shaping its narrative.
Demographics
Among Census respondents with the surname Kascsak, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (4.7%) and Black (2.8%).
The bar chart below shows how Kascsak 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 Kascsak surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Kascsak 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.
2000
National surname rank
First available Census row
2010
National surname rank
+14 bearers (+13.0%)
2020
National surname rank
-16 bearers (-13.1%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #141,788 | 108 | 0.04 | First available Census row | First available Census row |
| 2010 | #137,327 | 122 | 0.04 | +14 bearers (+13.0%) | Up 4,461 places |
| 2020 | #152,339 | 106 | 0.04 | -16 bearers (-13.1%) | Down 15,012 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
How has the Kascsak surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #137,327 | #152,339 | -10.9% |
| Count | 122 | 106 | -13.1% |
| Per 100K | 0.04 | 0.04 | -11.3% |
Between the 2010 and 2020 Census, the number of Kascsak bearers went from 122 to 106 (-13.1% change). The surname moved down 15,012 positions in the national ranking, going from #137,327 to #152,339.
FAQ
Name Census estimates that about 122 living Americans carry the surname Kascsak. Using the current population baseline, that works out to roughly 1 in 2,809,462 residents.
Kascsak ranks #152,339 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.
The raw 2020 Census file counted 106 people with the surname Kascsak. That is different from the site's living-bearer estimate (122), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
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 Kascsak.
Between 2010 and 2020, the surname Kascsak went from 122 recorded bearers to 106. That is a decrease of 16 (-13.1%). In the national ranking it fell from #137,327 to #152,339.
Among Census respondents with the surname Kascsak, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (4.7%) and Black (2.8%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
White is the largest self-reported group for the surname Kascsak in the 2020 Census, accounting for 92.5% (98 people in the source table).
Kascsak appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.5%), Hispanic (4.7%), Black (2.8%). 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.
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 Kascsak (2000, 2010, 2020).
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.
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.
A toponymic surname referring to someone from a place called Kascsak in Hungary. The fuller origin note on this page goes into more detail.
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.
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 Kascsak (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.
Find out how many people are called Kascsak on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.