2000
#103,706
National surname rank
Recorded bearers 160
First available Census row
Per 100,000 0.06
Very Rare Last name
Leszcynski
A Polish surname derived from the place name Leszno, meaning "of Leszno".
According to the 2020 US Census Bureau surname tables, roughly 134 Americans carry the last name Leszcynski. 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 Leszcynski 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 Leszcynski 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 Leszcynski, the largest self-reported group is White at 100.0%.
Origin
Meaning and origin of Leszcynski
The surname Leszcynski is of Polish origin, and it first emerged in the Middle Ages. It is derived from the Polish word "leszcz," which means "bream," a type of freshwater fish. The name likely originated as a nickname for someone who worked as a fisher or lived near a body of water abundant with bream.
The earliest recorded instances of the Leszcynski surname can be traced back to the 14th century in historical documents from various regions of Poland. It was particularly prevalent in the areas around the city of Poznan, where many families bore this name.
One of the most notable historical figures with the Leszcynski surname was Stanisław Leszczyński (1677-1766). He was a Polish nobleman, military leader, and twice-elected King of Poland, reigning from 1704 to 1709 and again from 1733 to 1736. Despite his tumultuous reign, he is remembered as a patron of the arts and sciences, and his court in Lorraine, France, became a center of cultural activity.
Another prominent figure was Rafał Leszczyński (1579-1637), a Polish Catholic priest and writer. He was a prominent figure in the Counter-Reformation movement and authored several religious works, including a famous treatise on the Virgin Mary.
In the realm of literature, one notable bearer of the Leszcynski surname was Ignacy Leszczynski (1788-1855), a Polish poet, translator, and dramatist. He is best known for his translations of works by Shakespeare and Molière into Polish.
The Leszcynski surname also has connections to various place names in Poland. For instance, the town of Leszno, located in western Poland, is derived from the same root as the surname, referring to the abundance of bream fish in the nearby rivers and lakes.
Another historical figure of note was Jan Leszczyński (1610-1678), a Polish military commander who fought in the Khmelnytsky Uprising and the Swedish Deluge. He is remembered for his bravery and leadership during these tumultuous times in Polish history.
Throughout the centuries, the Leszcynski surname has been spelled in various ways, including Leszczyński, Leszczyńska, and Leszczynski, reflecting regional variations and linguistic changes over time. However, the core meaning and origin of the name have remained consistent, rooted in the Polish language and the country's rich cultural heritage.
Demographics
Ancestry and ethnicity for Leszcynski
Among Census respondents with the surname Leszcynski, the largest self-reported group is White at 100.0%.
The bar chart below shows how Leszcynski 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 Leszcynski surname at the time of the 2020 Census, not any inherent property of the name itself.
- White100.0% · 117
Timeline
Historical Census data for Leszcynski
Leszcynski 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
#126,765
National surname rank
Recorded bearers 135
-25 bearers (-15.6%)
Per 100,000 0.05
Rank movement Down 23,059 places
2020
#144,270
National surname rank
Recorded bearers 117
-18 bearers (-13.3%)
Per 100,000 0.04
Rank movement Down 17,505 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #103,706 | 160 | 0.06 | First available Census row | First available Census row |
| 2010 | #126,765 | 135 | 0.05 | -25 bearers (-15.6%) | Down 23,059 places |
| 2020 | #144,270 | 117 | 0.04 | -18 bearers (-13.3%) | Down 17,505 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 Leszcynski 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 | #126,765 | #144,270 | -13.8% |
| Count | 135 | 117 | -13.3% |
| Per 100K | 0.05 | 0.04 | -21.7% |
Between the 2010 and 2020 Census, the number of Leszcynski bearers went from 135 to 117 (-13.3% change). The surname moved down 17,505 positions in the national ranking, going from #126,765 to #144,270.
FAQ
Leszcynski surname: questions and answers
How many people in the U.S. have the surname Leszcynski?
Name Census estimates that about 134 living Americans carry the surname Leszcynski. Using the current population baseline, that works out to roughly 1 in 2,557,868 residents.
How common is Leszcynski?
Leszcynski 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.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 117 people with the surname Leszcynski. 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.
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 Leszcynski.
Has Leszcynski become more or less common over time?
Between 2010 and 2020, the surname Leszcynski went from 135 recorded bearers to 117. That is a decrease of 18 (-13.3%). In the national ranking it fell from #126,765 to #144,270.
What does the Census say about the background of Leszcynski?
Among Census respondents with the surname Leszcynski, the largest self-reported group is White at 100.0%. 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 Leszcynski in the 2020 Census, accounting for 100.0% (117 people in the source table).
What is the full ancestry breakdown?
Leszcynski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (100.0%). 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 Leszcynski (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 Leszcynski mean?
A Polish surname derived from the place name Leszno, meaning "of Leszno". 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 Leszcynski (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 common is the surname Leszcynski?
See how many people have the surname Leszcynski on HowManyOfMe.org, our sister site built around that single question.