2000
#136,783
National surname rank
Recorded bearers 113
First available Census row
Per 100,000 0.04
Very Rare Last name
Koresko
A surname possibly of Polish origin, but meaning uncertain.
According to the 2020 US Census Bureau surname tables, roughly 120 Americans carry the last name Koresko. That puts it at #152,989 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,856,286 residents).
This page is the full Name Census profile for the Koresko 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
120
1 in 2,856,286
Census rank
#152,989
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
105
very rare in the US
Popularity narrative
The Census Bureau recorded 105 bearers of the surname Koresko in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 152989th position in the national surname ranking.
Among Census respondents with the surname Koresko, the largest self-reported group is White at 87.6%. The next largest groups are Two or More Races (11.4%) and Black (1.0%).
Origin
Meaning and origin of Koresko
The surname KORESKO is of Polish origin, originating in the 16th century. It is derived from the Polish word "korzesko," which means "a small root." The name likely referred to someone who lived near or worked with roots or tubers, possibly a farmer or herbalist.
The earliest known record of the KORESKO surname dates back to 1563, when it appeared in the parish records of the village of Korzeniów, located in what is now southern Poland. At the time, the spelling was often rendered as "Korzeszko" or "Korzesko."
In the 17th century, the name KORESKO began to spread to other regions of Poland, as well as to neighboring countries like Ukraine and Belarus. This was likely due to migration and population movements during this period.
One notable bearer of the KORESKO surname was Jan Koresko (1620-1687), a Polish herbalist and apothecary who authored several influential works on medicinal plants and their uses. His book "Herbarz Polski" (Polish Herbal) was widely read and helped to establish his reputation as a leading authority on the subject.
Another historical figure with the KORESKO surname was Mikołaj Koresko (1745-1812), a Polish military officer who served in the Napoleonic Wars. He fought alongside Polish forces allied with Napoleon and was recognized for his bravery and leadership on the battlefield.
In the 19th century, the KORESKO surname began to appear in the United States and other parts of the world, likely as a result of Polish immigration. One noteworthy individual was Stanisław Koresko (1855-1932), a Polish-American engineer and inventor who held several patents for innovations in the field of hydraulic machinery.
Another notable bearer of the KORESKO surname was Maria Koresko (1890-1968), a Polish-American artist and sculptor. Her works were exhibited in several prominent galleries and museums throughout her career, and she is recognized as an important figure in the Polish-American art community of the early 20th century.
Finally, the KORESKO surname was also borne by Kazimierz Koresko (1912-1998), a Polish-Canadian writer and journalist. He authored several books and articles on Polish history and culture, and played an important role in preserving and promoting Polish heritage in Canada.
Demographics
Ancestry and ethnicity for Koresko
Among Census respondents with the surname Koresko, the largest self-reported group is White at 87.6%. The next largest groups are Two or More Races (11.4%) and Black (1.0%).
The bar chart below shows how Koresko 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 Koresko surname at the time of the 2020 Census, not any inherent property of the name itself.
- White87.6% · 92
- Two or more races11.4% · 12
- Black or African American1.0% · 1
Timeline
Historical Census data for Koresko
Koresko 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
#148,347
National surname rank
Recorded bearers 111
-2 bearers (-1.8%)
Per 100,000 0.04
Rank movement Down 11,564 places
2020
#152,989
National surname rank
Recorded bearers 105
-6 bearers (-5.4%)
Per 100,000 0.04
Rank movement Down 4,642 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #136,783 | 113 | 0.04 | First available Census row | First available Census row |
| 2010 | #148,347 | 111 | 0.04 | -2 bearers (-1.8%) | Down 11,564 places |
| 2020 | #152,989 | 105 | 0.04 | -6 bearers (-5.4%) | Down 4,642 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 Koresko 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 | #148,347 | #152,989 | -3.1% |
| Count | 111 | 105 | -5.4% |
| Per 100K | 0.04 | 0.04 | -12.2% |
Between the 2010 and 2020 Census, the number of Koresko bearers went from 111 to 105 (-5.4% change). The surname moved down 4,642 positions in the national ranking, going from #148,347 to #152,989.
FAQ
Koresko surname: questions and answers
How many people in the U.S. have the surname Koresko?
Name Census estimates that about 120 living Americans carry the surname Koresko. Using the current population baseline, that works out to roughly 1 in 2,856,286 residents.
How common is Koresko?
Koresko ranks #152,989 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 105 people with the surname Koresko. That is different from the site's living-bearer estimate (120), 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 Koresko.
Has Koresko become more or less common over time?
Between 2010 and 2020, the surname Koresko went from 111 recorded bearers to 105. That is a decrease of 6 (-5.4%). In the national ranking it fell from #148,347 to #152,989.
What does the Census say about the background of Koresko?
Among Census respondents with the surname Koresko, the largest self-reported group is White at 87.6%. The next largest groups are Two or More Races (11.4%) and Black (1.0%). 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 Koresko in the 2020 Census, accounting for 87.6% (92 people in the source table).
What is the full ancestry breakdown?
Koresko appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (87.6%), Two or More Races (11.4%), Black (1.0%). 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 Koresko (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 Koresko mean?
A surname possibly of Polish origin, but meaning uncertain. 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 Koresko (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 share the surname Koresko?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.