2000
#108,734
National surname rank
Recorded bearers 151
First available Census row
Per 100,000 0.06
Very Rare Last name
Bujanowski
A Polish occupational surname derived from the word "bujany" meaning "wanderer" or "vagabond."
According to the 2020 US Census Bureau surname tables, roughly 115 Americans carry the last name Bujanowski. That puts it at #155,682 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,980,473 residents).
This page is the full Name Census profile for the Bujanowski 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
115
1 in 2,980,473
Census rank
#155,682
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
100
very rare in the US
Popularity narrative
The Census Bureau recorded 100 bearers of the surname Bujanowski in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 155682nd position in the national surname ranking.
Among Census respondents with the surname Bujanowski, the largest self-reported group is White at 96.0%. The next largest groups are Two or More Races (4.0%).
Origin
Meaning and origin of Bujanowski
The surname BUJANOWSKI originated in Poland, with the earliest recorded instances dating back to the late 15th century. It is derived from the Polish word "bujany," which means "rebellious" or "unruly." This suggests that the name was likely given to someone with a defiant or independent spirit.
BUJANOWSKI is believed to have originated in the region of Greater Poland, specifically in the areas around the cities of Poznan and Kalisz. In some historical records, the name appears with slight variations in spelling, such as "Bujanowski," "Bujański," or "Bujański."
One of the earliest known references to the name BUJANOWSKI can be found in the "Teki Dworzaczka" (Dworzaczek Notebooks), a collection of genealogical records compiled by Polish historian Bolesław Hubicki in the 19th century. These records mention several individuals with the surname BUJANOWSKI living in the Greater Poland region during the 16th and 17th centuries.
Notable individuals with the surname BUJANOWSKI throughout history include:
1. Jan Bujanowski (1640-1712), a Polish nobleman and military commander who fought in the Polish-Ottoman Wars and the Great Northern War.
2. Franciszek Bujanowski (1771-1845), a Polish engineer and architect who designed several notable buildings in Warsaw, including the Old Town Market Square.
3. Jakub Bujanowski (1805-1876), a Polish physician and professor at the University of Warsaw, known for his contributions to the fields of obstetrics and gynecology.
4. Maria Bujanowska (1850-1925), a Polish author and translator who published works on literature and philosophy.
5. Wojciech Bujanowski (1883-1964), a Polish politician and diplomat who served as the Minister of Foreign Affairs of Poland from 1939 to 1940.
While the surname BUJANOWSKI is primarily associated with Poland, it is also found in other Slavic countries, such as Ukraine and Belarus, likely due to migration and intermarriage over the centuries.
Demographics
Ancestry and ethnicity for Bujanowski
Among Census respondents with the surname Bujanowski, the largest self-reported group is White at 96.0%. The next largest groups are Two or More Races (4.0%).
The bar chart below shows how Bujanowski 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 Bujanowski surname at the time of the 2020 Census, not any inherent property of the name itself.
- White96.0% · 96
- Two or more races4.0% · 4
Timeline
Historical Census data for Bujanowski
Bujanowski 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
#132,206
National surname rank
Recorded bearers 128
-23 bearers (-15.2%)
Per 100,000 0.04
Rank movement Down 23,472 places
2020
#155,682
National surname rank
Recorded bearers 100
-28 bearers (-21.9%)
Per 100,000 0.03
Rank movement Down 23,476 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #108,734 | 151 | 0.06 | First available Census row | First available Census row |
| 2010 | #132,206 | 128 | 0.04 | -23 bearers (-15.2%) | Down 23,472 places |
| 2020 | #155,682 | 100 | 0.03 | -28 bearers (-21.9%) | Down 23,476 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 Bujanowski 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 | #132,206 | #155,682 | -17.8% |
| Count | 128 | 100 | -21.9% |
| Per 100K | 0.04 | 0.03 | -16.4% |
Between the 2010 and 2020 Census, the number of Bujanowski bearers went from 128 to 100 (-21.9% change). The surname moved down 23,476 positions in the national ranking, going from #132,206 to #155,682.
FAQ
Bujanowski surname: questions and answers
How many people in the U.S. have the surname Bujanowski?
Name Census estimates that about 115 living Americans carry the surname Bujanowski. Using the current population baseline, that works out to roughly 1 in 2,980,473 residents.
How common is Bujanowski?
Bujanowski ranks #155,682 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 100 people with the surname Bujanowski. That is different from the site's living-bearer estimate (115), 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 Bujanowski.
Has Bujanowski become more or less common over time?
Between 2010 and 2020, the surname Bujanowski went from 128 recorded bearers to 100. That is a decrease of 28 (-21.9%). In the national ranking it fell from #132,206 to #155,682.
What does the Census say about the background of Bujanowski?
Among Census respondents with the surname Bujanowski, the largest self-reported group is White at 96.0%. The next largest groups are Two or More Races (4.0%). 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 Bujanowski in the 2020 Census, accounting for 96.0% (96 people in the source table).
What is the full ancestry breakdown?
Bujanowski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (96.0%), Two or More Races (4.0%). 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 Bujanowski (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 Bujanowski mean?
A Polish occupational surname derived from the word "bujany" meaning "wanderer" or "vagabond." 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 Bujanowski (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 have the last name Bujanowski?
Find out how many Americans have the surname Bujanowski on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.