2010
#134,712
National surname rank
Recorded bearers 125
First available Census row
Per 100,000 0.04
Very Rare Last name
Ksobiech
A Polish surname derived from a personal name meaning "solitary man".
According to the 2020 US Census Bureau surname tables, roughly 131 Americans carry the last name Ksobiech. That puts it at #146,495 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,616,445 residents).
This page is the full Name Census profile for the Ksobiech 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
131
1 in 2,616,445
Census rank
#146,495
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
114
very rare in the US
Popularity narrative
The Census Bureau recorded 114 bearers of the surname Ksobiech in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 146495th position in the national surname ranking.
Among Census respondents with the surname Ksobiech, the largest self-reported group is White at 96.5%. The next largest groups are Hispanic (1.8%) and Asian/Pacific Islander (1.8%).
Origin
Meaning and origin of Ksobiech
The surname "KSOBIECH" has its origins in Poland, with the earliest recorded instances dating back to the 16th century. The name is believed to have derived from the Polish word "ksiądz" (priest) or "księżyc" (moon), indicating that ancestors with this surname may have been associated with the clergy or had a connection to the lunar cycle.
One of the earliest documented records of the KSOBIECH surname can be found in the parish registers of the town of Krakow from the mid-1500s. The name appears to have been concentrated in the southern regions of Poland, particularly in the areas around Krakow and the surrounding villages.
In the 17th century, the KSOBIECH name gained prominence when Jan KSOBIECH (1612-1683) became a renowned scholar and theologian at the University of Krakow. His writings and teachings on religious philosophy were widely influential during that period.
Another notable figure bearing the KSOBIECH surname was Marianna KSOBIECH (1789-1854), a prominent businesswoman and landowner in the city of Lviv, which was then part of the Austro-Hungarian Empire. She was known for her philanthropic efforts and support for local educational institutions.
During the 19th century, the KSOBIECH name spread beyond Poland as families emigrated to other parts of Europe and the Americas. One such individual was Kazimierz KSOBIECH (1832-1901), who settled in the United States and became a successful farmer in the state of Wisconsin.
In the early 20th century, Antoni KSOBIECH (1876-1945) was a Polish artist renowned for his landscape paintings and portraits. His works were exhibited in several prestigious galleries across Europe and are now part of various museum collections.
Another notable figure was Wanda KSOBIECH (1923-2008), a Polish-born author and poet who lived and worked in Canada for most of her life. Her literary works often explored themes of migration, identity, and the immigrant experience.
While the KSOBIECH surname may have originated from humble beginnings, it has been carried by individuals who have made significant contributions in various fields throughout history, from academia and religion to business and the arts.
Demographics
Ancestry and ethnicity for Ksobiech
Among Census respondents with the surname Ksobiech, the largest self-reported group is White at 96.5%. The next largest groups are Hispanic (1.8%) and Asian/Pacific Islander (1.8%).
The bar chart below shows how Ksobiech 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 Ksobiech surname at the time of the 2020 Census, not any inherent property of the name itself.
- White96.5% · 110
- Hispanic or Latino1.8% · 2
- Asian and Pacific Islander1.8% · 2
Timeline
Historical Census data for Ksobiech
Ksobiech appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#146,495
National surname rank
Recorded bearers 114
-11 bearers (-8.8%)
Per 100,000 0.04
Rank movement Down 11,783 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #134,712 | 125 | 0.04 | First available Census row | First available Census row |
| 2020 | #146,495 | 114 | 0.04 | -11 bearers (-8.8%) | Down 11,783 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 Ksobiech 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 | #134,712 | #146,495 | -8.7% |
| Count | 125 | 114 | -8.8% |
| Per 100K | 0.04 | 0.04 | -4.6% |
Between the 2010 and 2020 Census, the number of Ksobiech bearers went from 125 to 114 (-8.8% change). The surname moved down 11,783 positions in the national ranking, going from #134,712 to #146,495.
FAQ
Ksobiech surname: questions and answers
How many people in the U.S. have the surname Ksobiech?
Name Census estimates that about 131 living Americans carry the surname Ksobiech. Using the current population baseline, that works out to roughly 1 in 2,616,445 residents.
How common is Ksobiech?
Ksobiech ranks #146,495 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 114 people with the surname Ksobiech. That is different from the site's living-bearer estimate (131), 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 Ksobiech.
Has Ksobiech become more or less common over time?
Between 2010 and 2020, the surname Ksobiech went from 125 recorded bearers to 114. That is a decrease of 11 (-8.8%). In the national ranking it fell from #134,712 to #146,495.
What does the Census say about the background of Ksobiech?
Among Census respondents with the surname Ksobiech, the largest self-reported group is White at 96.5%. The next largest groups are Hispanic (1.8%) and Asian/Pacific Islander (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 Ksobiech in the 2020 Census, accounting for 96.5% (110 people in the source table).
What is the full ancestry breakdown?
Ksobiech appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (96.5%), Hispanic (1.8%), Asian/Pacific Islander (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 Ksobiech (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 Ksobiech mean?
A Polish surname derived from a personal name meaning "solitary man". 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 Ksobiech (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 have the surname Ksobiech?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.