2000
#146,011
National surname rank
Recorded bearers 104
First available Census row
Per 100,000 0.04
Very Rare Last name
Pietruszynski
A Polish surname derived from the personal name Piotr, meaning "rock" or "stone".
According to the 2020 US Census Bureau surname tables, roughly 119 Americans carry the last name Pietruszynski. That puts it at #153,590 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,880,289 residents).
This page is the full Name Census profile for the Pietruszynski 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
119
1 in 2,880,289
Census rank
#153,590
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
104
very rare in the US
Popularity narrative
The Census Bureau recorded 104 bearers of the surname Pietruszynski in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 153590th position in the national surname ranking.
Among Census respondents with the surname Pietruszynski, the largest self-reported group is White at 96.2%. The next largest groups are Hispanic (3.8%).
Origin
Meaning and origin of Pietruszynski
The surname Pietruszynski is of Polish origin and can be traced back to the late medieval period in the region of Silesia, which is now split between modern-day Poland and the Czech Republic. The name is derived from the Polish given name Piotr, a variant of Peter, combined with the Polonized suffix "-owski" or "-ski," indicating a patronymic or a place of origin.
One of the earliest recorded instances of the name appears in the Hussiten-Krieg, a 15th-century manuscript chronicling the Hussite Wars in Bohemia. The document mentions a nobleman named Pietruszynski who fought alongside the forces of King Sigismund of Hungary against the Hussites.
In the 16th century, the Pietruszynski family was known to have owned lands and estates in the village of Pietruszynowo, now part of the Opole Voivodeship in southwestern Poland. This village likely took its name from the family, suggesting their prominence in the region.
Notable individuals bearing the Pietruszynski surname include Jan Pietruszynski (1550-1623), a Polish Catholic bishop who served as the Auxiliary Bishop of Wrocław and was known for his efforts in promoting education and religious reforms during the Counter-Reformation.
Another significant figure was Marcin Pietruszynski (1705-1778), a Polish military officer who fought in the War of the Polish Succession and later served as a general in the armies of King Augustus III of Poland.
In the 19th century, Franciszek Pietruszynski (1819-1892) was a Polish writer and historian who published several works on the history of Silesia and the Polish-Lithuanian Commonwealth.
Towards the end of the 19th century, the Pietruszynski family also had a presence in the United States, with Stanisław Pietruszynski (1867-1934) being a prominent Polish-American businessman and philanthropist who founded the Pietruszynski Brewery in Chicago.
The surname Pietruszynski has also been associated with various place names in Poland, such as Pietruszynowo, Pietruszyno, and Pietruszkowy, which may have been derived from the family name or vice versa.
Demographics
Ancestry and ethnicity for Pietruszynski
Among Census respondents with the surname Pietruszynski, the largest self-reported group is White at 96.2%. The next largest groups are Hispanic (3.8%).
The bar chart below shows how Pietruszynski 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 Pietruszynski surname at the time of the 2020 Census, not any inherent property of the name itself.
- White96.2% · 100
- Hispanic or Latino3.8% · 4
Timeline
Historical Census data for Pietruszynski
Pietruszynski 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
#152,628
National surname rank
Recorded bearers 107
+3 bearers (+2.9%)
Per 100,000 0.04
Rank movement Down 6,617 places
2020
#153,590
National surname rank
Recorded bearers 104
-3 bearers (-2.8%)
Per 100,000 0.03
Rank movement Down 962 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #146,011 | 104 | 0.04 | First available Census row | First available Census row |
| 2010 | #152,628 | 107 | 0.04 | +3 bearers (+2.9%) | Down 6,617 places |
| 2020 | #153,590 | 104 | 0.03 | -3 bearers (-2.8%) | Down 962 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 Pietruszynski 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 | #152,628 | #153,590 | -0.6% |
| Count | 107 | 104 | -2.8% |
| Per 100K | 0.04 | 0.03 | -13.0% |
Between the 2010 and 2020 Census, the number of Pietruszynski bearers went from 107 to 104 (-2.8% change). The surname moved down 962 positions in the national ranking, going from #152,628 to #153,590.
FAQ
Pietruszynski surname: questions and answers
How many people in the U.S. have the surname Pietruszynski?
Name Census estimates that about 119 living Americans carry the surname Pietruszynski. Using the current population baseline, that works out to roughly 1 in 2,880,289 residents.
How common is Pietruszynski?
Pietruszynski ranks #153,590 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.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 104 people with the surname Pietruszynski. That is different from the site's living-bearer estimate (119), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
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 Pietruszynski.
Has Pietruszynski become more or less common over time?
Between 2010 and 2020, the surname Pietruszynski went from 107 recorded bearers to 104. That is a decrease of 3 (-2.8%). In the national ranking it fell from #152,628 to #153,590.
What does the Census say about the background of Pietruszynski?
Among Census respondents with the surname Pietruszynski, the largest self-reported group is White at 96.2%. The next largest groups are Hispanic (3.8%). 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 Pietruszynski in the 2020 Census, accounting for 96.2% (100 people in the source table).
What is the full ancestry breakdown?
Pietruszynski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (96.2%), Hispanic (3.8%). 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 Pietruszynski (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 Pietruszynski mean?
A Polish surname derived from the personal name Piotr, meaning "rock" or "stone". 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 Pietruszynski (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.
How many people share the surname Pietruszynski?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.