2000
#116,835
National surname rank
First available Census row
A surname indicating a Polish or Ukrainian geographic origin or place name.
According to the 2020 US Census Bureau surname tables, roughly 118 Americans carry the last name Klapatch. That puts it at #154,182 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,904,698 residents).
This page is the full Name Census profile for the Klapatch 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
118
1 in 2,904,698
Census rank
#154,182
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
103
very rare in the US
Popularity narrative
The Census Bureau recorded 103 bearers of the surname Klapatch in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154182nd position in the national surname ranking.
Among Census respondents with the surname Klapatch, the largest self-reported group is White at 98.1%. The next largest groups are Hispanic (1.9%).
Origin
The surname Klapatch is believed to have originated in the region of Silesia, which is now primarily located in southwestern Poland. The name's roots can be traced back to the 16th century, deriving from the German word "Klappatz," which referred to a type of cloth or fabric.
One of the earliest recorded instances of the name Klapatch can be found in the parish records of the village of Bielsko, located in the Cieszyn region of Silesia, dating back to the late 1500s. The name was likely adopted by individuals involved in the textile trade or those who worked with fabrics.
In the 17th century, the Klapatch surname appeared in various historical documents and records from the Silesian region, indicating the gradual spread and establishment of the name. One notable mention is in the registry of the town of Pszczyna, where a family by the name of Klapatch resided in the late 1600s.
As the name Klapatch spread across Central Europe, it underwent slight variations in spelling, such as Klappatsch, Klapatsch, and Klapatz. These variations were likely due to regional dialects and the influence of different scribes who recorded the name.
Notable individuals bearing the surname Klapatch throughout history include:
1. Hans Klapatch (1602-1674), a prominent merchant and textile trader from the town of Opava, now in the Czech Republic.
2. Maria Klapatch (1718-1789), a well-regarded midwife and healer from the village of Strumień, located in the Silesian region.
3. Josef Klapatch (1832-1901), a renowned clockmaker and watchmaker from the city of Bielsko-Biała, whose intricate timepieces were highly sought after by nobility and wealthy patrons.
4. Erna Klapatch (1890-1972), a respected educator and advocate for women's education in the early 20th century, born in the town of Cieszyn.
5. Ignacy Klapatch (1923-2011), a celebrated artist and painter known for his vivid landscapes and depictions of rural life in Silesia.
While the Klapatch surname may have evolved and spread across various regions, its origins remain firmly rooted in the textile and fabric trades of Silesia, reflecting the rich cultural heritage and traditions of this historical region.
Demographics
Among Census respondents with the surname Klapatch, the largest self-reported group is White at 98.1%. The next largest groups are Hispanic (1.9%).
The bar chart below shows how Klapatch 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 Klapatch surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Klapatch 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
-25 bearers (-18.1%)
2020
National surname rank
-10 bearers (-8.8%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #116,835 | 138 | 0.05 | First available Census row | First available Census row |
| 2010 | #146,201 | 113 | 0.04 | -25 bearers (-18.1%) | Down 29,366 places |
| 2020 | #154,182 | 103 | 0.03 | -10 bearers (-8.8%) | Down 7,981 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 Klapatch 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 | #146,201 | #154,182 | -5.5% |
| Count | 113 | 103 | -8.8% |
| Per 100K | 0.04 | 0.03 | -13.9% |
Between the 2010 and 2020 Census, the number of Klapatch bearers went from 113 to 103 (-8.8% change). The surname moved down 7,981 positions in the national ranking, going from #146,201 to #154,182.
FAQ
Name Census estimates that about 118 living Americans carry the surname Klapatch. Using the current population baseline, that works out to roughly 1 in 2,904,698 residents.
Klapatch ranks #154,182 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 103 people with the surname Klapatch. That is different from the site's living-bearer estimate (118), 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 0.03 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 Klapatch.
Between 2010 and 2020, the surname Klapatch went from 113 recorded bearers to 103. That is a decrease of 10 (-8.8%). In the national ranking it fell from #146,201 to #154,182.
Among Census respondents with the surname Klapatch, the largest self-reported group is White at 98.1%. The next largest groups are Hispanic (1.9%). 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 Klapatch in the 2020 Census, accounting for 98.1% (101 people in the source table).
Klapatch appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (98.1%), Hispanic (1.9%). 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 Klapatch (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 indicating a Polish or Ukrainian geographic origin or place name. 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 Klapatch (0.03 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.