2000
#119,644
National surname rank
First available Census row
A surname of Polish origin, likely derived from a descriptive nickname or occupation.
According to the 2020 US Census Bureau surname tables, roughly 134 Americans carry the last name Klasky. That puts it at #144,270 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,557,868 residents).
This page is the full Name Census profile for the Klasky 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
134
1 in 2,557,868
Census rank
#144,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
117
very rare in the US
Popularity narrative
The Census Bureau recorded 117 bearers of the surname Klasky in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 144270th position in the national surname ranking.
Among Census respondents with the surname Klasky, the largest self-reported group is White at 89.7%. The next largest groups are Hispanic (6.8%) and American Indian/Alaska Native (1.7%).
Origin
The surname Klasky is believed to have originated in Poland during the Middle Ages. It is thought to be derived from the Slavic word "klas," which means "ear of grain" or "spike." This suggests that the name may have been initially given to someone who lived near a wheat field or worked as a farmer or miller.
One of the earliest recorded instances of the name Klasky dates back to the 14th century, where it appears in a Polish census record from the town of Krakow. The name was spelled "Klazkye" at the time, reflecting the phonetic variations common in that era.
During the 16th century, the name Klasky began to appear in various legal and ecclesiastical documents across central and eastern Europe. One notable example is a land deed from 1562 that mentions a certain Jan Klasky, who acquired a plot of land in the village of Bielsko, located in what is now southern Poland.
In the 17th century, the surname Klasky gained prominence with the birth of Karol Klasky (1625-1698), a Polish nobleman and military commander who served under King John III Sobieski. Karol Klasky is recorded as having fought bravely in the Battle of Vienna in 1683, where he helped to repel the Ottoman invasion of Europe.
Another historically significant figure bearing the Klasky surname was Anna Klasky (1742-1810), a Polish poet and author who was renowned for her romantic verses and her advocacy for women's education. Her collection of poems, titled "Wiersze Miłosne" (Love Poems), was published in 1785 and is considered a significant work of Polish literature from the Enlightenment period.
In the 19th century, the Klasky surname spread beyond Poland due to immigration and migration. One notable figure was Mikhail Klasky (1832-1901), a Russian-born engineer who played a crucial role in the construction of the Trans-Siberian Railway, one of the most ambitious infrastructure projects of the time.
As the Klasky name travelled across Europe and beyond, it also underwent various spelling variations, such as Klaski, Klaskiy, and Klaszky, reflecting the linguistic and cultural diversity of the regions where it took root.
Demographics
Among Census respondents with the surname Klasky, the largest self-reported group is White at 89.7%. The next largest groups are Hispanic (6.8%) and American Indian/Alaska Native (1.7%).
The bar chart below shows how Klasky 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 Klasky surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Klasky 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
-1 bearers (-0.7%)
2020
National surname rank
-16 bearers (-12.0%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #119,644 | 134 | 0.05 | First available Census row | First available Census row |
| 2010 | #128,249 | 133 | 0.05 | -1 bearers (-0.7%) | Down 8,605 places |
| 2020 | #144,270 | 117 | 0.04 | -16 bearers (-12.0%) | Down 16,021 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 Klasky 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 | #128,249 | #144,270 | -12.5% |
| Count | 133 | 117 | -12.0% |
| Per 100K | 0.05 | 0.04 | -21.7% |
Between the 2010 and 2020 Census, the number of Klasky bearers went from 133 to 117 (-12.0% change). The surname moved down 16,021 positions in the national ranking, going from #128,249 to #144,270.
FAQ
Name Census estimates that about 134 living Americans carry the surname Klasky. Using the current population baseline, that works out to roughly 1 in 2,557,868 residents.
Klasky ranks #144,270 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 117 people with the surname Klasky. That is different from the site's living-bearer estimate (134), 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 Klasky.
Between 2010 and 2020, the surname Klasky went from 133 recorded bearers to 117. That is a decrease of 16 (-12.0%). In the national ranking it fell from #128,249 to #144,270.
Among Census respondents with the surname Klasky, the largest self-reported group is White at 89.7%. The next largest groups are Hispanic (6.8%) and American Indian/Alaska Native (1.7%). 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 Klasky in the 2020 Census, accounting for 89.7% (105 people in the source table).
Klasky appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (89.7%), Hispanic (6.8%), American Indian/Alaska Native (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.
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 Klasky (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 surname of Polish origin, likely derived from a descriptive nickname or occupation. 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 Klasky (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.
You can see how many Americans have the surname Klasky on our sister site HowManyOfMe.org — same data roots, lighter UI.