2000
#122,534
National surname rank
Recorded bearers 130
First available Census row
Per 100,000 0.05
Very Rare Last name
Kazanowski
Of Polish origin, meaning "from Kazan", referring to the city in Russia.
According to the 2020 US Census Bureau surname tables, roughly 132 Americans carry the last name Kazanowski. That puts it at #145,757 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,596,624 residents).
This page is the full Name Census profile for the Kazanowski 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
132
1 in 2,596,624
Census rank
#145,757
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
115
very rare in the US
Popularity narrative
The Census Bureau recorded 115 bearers of the surname Kazanowski in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 145757th position in the national surname ranking.
Among Census respondents with the surname Kazanowski, the largest self-reported group is White at 96.5%. The next largest groups are American Indian/Alaska Native (1.7%) and Hispanic (0.9%).
Origin
Meaning and origin of Kazanowski
The surname Kazanowski originated in Poland in the 13th century. It is derived from the city of Kazan, which was part of the Khanate of Kazan, a medieval Tatar state that existed from 1438 to 1552. The name likely referred to someone who came from or had some connection to Kazan.
One of the earliest recorded instances of the name Kazanowski can be found in a Polish noble registry from the late 15th century, where a certain Jan Kazanowski is mentioned as a landowner in the region of Mazovia. This suggests that the name had already been established among the Polish nobility by that time.
In the 16th century, a prominent figure named Stanisław Kazanowski served as a military commander and diplomat for the Polish-Lithuanian Commonwealth. He played a significant role in the Polish-Muscovite War of 1609-1618, known as the Smolensk War, and was instrumental in negotiating the Truce of Deulino in 1618.
Another notable bearer of the Kazanowski name was Józef Kazanowski (1757-1829), a Polish nobleman and politician who served as a senator during the reign of King Stanisław August Poniatowski. He was a supporter of the Polish Constitution of May 3, 1791, and later became a member of the Prussian-backed Governing Commission during the Prussian occupation of Poland.
In the 19th century, a Kazanowski family owned a large estate in the village of Rożnów, located in the former Lublin Voivodeship of the Polish-Lithuanian Commonwealth. One member of this family, Władysław Kazanowski (1828-1892), was a renowned painter and art teacher who studied in Paris and later became the director of the School of Fine Arts in Warsaw.
Another figure of note was Franciszek Kazanowski (1864-1937), a Polish engineer and inventor who patented several innovative devices, including a type of water turbine and a mechanical calculator. He was also involved in the construction of several notable bridges and other infrastructure projects in Poland.
While the Kazanowski surname is most commonly associated with Poland, it is also found in other Slavic countries, such as Russia and Ukraine, likely due to migration patterns and historical connections between these regions. However, the name remains relatively rare outside of Eastern Europe.
Demographics
Ancestry and ethnicity for Kazanowski
Among Census respondents with the surname Kazanowski, the largest self-reported group is White at 96.5%. The next largest groups are American Indian/Alaska Native (1.7%) and Hispanic (0.9%).
The bar chart below shows how Kazanowski 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 Kazanowski surname at the time of the 2020 Census, not any inherent property of the name itself.
- White96.5% · 111
- American Indian and Alaska Native1.7% · 2
- Hispanic or Latino0.9% · 1
- Asian and Pacific Islander0.9% · 1
Timeline
Historical Census data for Kazanowski
Kazanowski 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
#130,610
National surname rank
Recorded bearers 130
+0 bearers (+0.0%)
Per 100,000 0.04
Rank movement Down 8,076 places
2020
#145,757
National surname rank
Recorded bearers 115
-15 bearers (-11.5%)
Per 100,000 0.04
Rank movement Down 15,147 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #122,534 | 130 | 0.05 | First available Census row | First available Census row |
| 2010 | #130,610 | 130 | 0.04 | +0 bearers (+0.0%) | Down 8,076 places |
| 2020 | #145,757 | 115 | 0.04 | -15 bearers (-11.5%) | Down 15,147 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 Kazanowski 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 | #130,610 | #145,757 | -11.6% |
| Count | 130 | 115 | -11.5% |
| Per 100K | 0.04 | 0.04 | -3.8% |
Between the 2010 and 2020 Census, the number of Kazanowski bearers went from 130 to 115 (-11.5% change). The surname moved down 15,147 positions in the national ranking, going from #130,610 to #145,757.
FAQ
Kazanowski surname: questions and answers
How many people in the U.S. have the surname Kazanowski?
Name Census estimates that about 132 living Americans carry the surname Kazanowski. Using the current population baseline, that works out to roughly 1 in 2,596,624 residents.
How common is Kazanowski?
Kazanowski ranks #145,757 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 115 people with the surname Kazanowski. That is different from the site's living-bearer estimate (132), 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 Kazanowski.
Has Kazanowski become more or less common over time?
Between 2010 and 2020, the surname Kazanowski went from 130 recorded bearers to 115. That is a decrease of 15 (-11.5%). In the national ranking it fell from #130,610 to #145,757.
What does the Census say about the background of Kazanowski?
Among Census respondents with the surname Kazanowski, the largest self-reported group is White at 96.5%. The next largest groups are American Indian/Alaska Native (1.7%) and Hispanic (0.9%). 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 Kazanowski in the 2020 Census, accounting for 96.5% (111 people in the source table).
What is the full ancestry breakdown?
Kazanowski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (96.5%), American Indian/Alaska Native (1.7%), Hispanic (0.9%). 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.
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 Kazanowski (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 Kazanowski mean?
Of Polish origin, meaning "from Kazan", referring to the city in Russia. 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 Kazanowski (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 Americans have the surname Kazanowski?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.