2000
#142,819
National surname rank
First available Census row
A surname of Polish origin, possibly derived from a diminutive form of a personal name.
According to the 2020 US Census Bureau surname tables, roughly 135 Americans carry the last name Blendowski. That puts it at #143,511 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,538,921 residents).
This page is the full Name Census profile for the Blendowski 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
135
1 in 2,538,921
Census rank
#143,511
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
118
very rare in the US
Popularity narrative
The Census Bureau recorded 118 bearers of the surname Blendowski in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 143511th position in the national surname ranking.
Among Census respondents with the surname Blendowski, the largest self-reported group is White at 84.7%. The next largest groups are Hispanic (5.9%) and Two or More Races (5.9%).
Origin
The surname Blendowski originated in Poland and is believed to date back to the 16th century. It is derived from the Polish word "blenda," which means "loser" or "vagabond," and the suffix "-owski," which is a common Polish surname ending indicating a place of origin or family name.
One of the earliest recorded instances of the Blendowski name can be found in the Metryka Koronna, a collection of official records from the Polish-Lithuanian Commonwealth, where it appears in the late 16th century. This suggests that the name may have originated in the region that is now part of modern-day Poland.
In the 17th century, the Blendowski name appeared in various Polish historical records, including church registers and land ownership documents. One notable individual from this time period was Jan Blendowski, a landowner and nobleman who lived in the Lublin region of eastern Poland in the late 1600s.
During the 18th century, the Blendowski name continued to be found in Polish records, particularly in the areas around Krakow and Rzeszow. Franciszek Blendowski, a prominent lawyer and judge, was born in Krakow in 1745 and made significant contributions to the development of Polish legal systems.
In the 19th century, the Blendowski name spread to other parts of Europe as Polish families emigrated. Stanislaw Blendowski, a Polish-born artist and painter, gained recognition in France during the late 1800s for his landscapes and portraits.
As Polish communities established themselves in the United States and other countries in the late 19th and early 20th centuries, the Blendowski name became more widespread. Notable individuals with this surname include Kazimierz Blendowski, a Polish-American historian and author born in 1878, and Wladyslaw Blendowski, a Polish political activist and writer who lived from 1887 to 1962.
While the exact origins of the Blendowski name remain uncertain, its deep roots in Polish history and culture are evident. The name has been carried by individuals from various walks of life, including landowners, lawyers, artists, and scholars, over the course of several centuries.
Demographics
Among Census respondents with the surname Blendowski, the largest self-reported group is White at 84.7%. The next largest groups are Hispanic (5.9%) and Two or More Races (5.9%).
The bar chart below shows how Blendowski 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 Blendowski surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Blendowski 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
-4 bearers (-3.7%)
2020
National surname rank
+15 bearers (+14.6%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #142,819 | 107 | 0.04 | First available Census row | First available Census row |
| 2010 | #157,234 | 103 | 0.03 | -4 bearers (-3.7%) | Down 14,415 places |
| 2020 | #143,511 | 118 | 0.04 | +15 bearers (+14.6%) | Up 13,723 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 Blendowski 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 | #157,234 | #143,511 | 8.7% |
| Count | 103 | 118 | 14.6% |
| Per 100K | 0.03 | 0.04 | 31.6% |
Between the 2010 and 2020 Census, the number of Blendowski bearers went from 103 to 118 (+14.6% change). The surname moved up 13,723 positions in the national ranking, going from #157,234 to #143,511.
FAQ
Name Census estimates that about 135 living Americans carry the surname Blendowski. Using the current population baseline, that works out to roughly 1 in 2,538,921 residents.
Blendowski ranks #143,511 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 118 people with the surname Blendowski. That is different from the site's living-bearer estimate (135), 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 Blendowski.
Between 2010 and 2020, the surname Blendowski went from 103 recorded bearers to 118. That is an increase of 15 (+14.6%). In the national ranking it rose from #157,234 to #143,511.
Among Census respondents with the surname Blendowski, the largest self-reported group is White at 84.7%. The next largest groups are Hispanic (5.9%) and Two or More Races (5.9%). 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 Blendowski in the 2020 Census, accounting for 84.7% (100 people in the source table).
Blendowski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (84.7%), Hispanic (5.9%), Two or More Races (5.9%). 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 Blendowski (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, possibly derived from a diminutive form of a personal 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 Blendowski (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.
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.