2000
#68,360
National surname rank
First available Census row
A Polish surname derived from "Siczka", a diminutive form of "Sic", referring to someone from the village of Siczki.
According to the 2020 US Census Bureau surname tables, roughly 298 Americans carry the last name Sicinski. That puts it at #79,118 in the national surname ranking, appearing at a frequency of 0.09 per 100,000 people (about 1 in 1,150,182 residents).
This page is the full Name Census profile for the Sicinski 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
298
1 in 1,150,182
Census rank
#79,118
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
260
very rare in the US
Popularity narrative
The Census Bureau recorded 260 bearers of the surname Sicinski in its 2020 decennial surname file. At a rate of 0.09 per 100,000 residents, it holds the 79118th position in the national surname ranking.
Among Census respondents with the surname Sicinski, the largest self-reported group is White at 88.5%. The next largest groups are Hispanic (7.7%) and Asian/Pacific Islander (1.9%).
Origin
The surname SICINSKI is of Polish origin, tracing its roots back to the 10th century. It is derived from the Polish word "sika", which means "stream" or "small river". This suggests that the name may have originated from a place near a stream or a small river.
In the early days, surnames were often derived from geographical features, occupations, or personal characteristics. The suffix "-ski" is a common Polish patronymic ending, indicating that the name was initially a possessive form, likely referring to someone who lived near a stream or a small river.
One of the earliest recorded instances of the name SICINSKI can be found in the Teki Naruszewicza, a collection of historical documents compiled in the late 18th century by Adam Naruszewicz, a Polish historian and bishop. These documents mention a nobleman named Jan Sicinski, who lived in the late 16th century.
Another notable figure bearing this surname was Józef Sicinski, a Polish military officer and a participant in the Kościuszko Uprising against the Russian Empire in 1794. He was born in 1766 and played a significant role in the defense of Warsaw during the uprising.
In the 19th century, a prominent bearer of the SICINSKI name was Kazimierz Sicinski, a Polish writer and journalist. He was born in 1826 and authored several novels and plays, contributing to the development of Polish literature during that period.
Another notable individual was Bronisław Sicinski, a Polish economist and statistician who lived from 1887 to 1946. He made significant contributions to the field of economic theory and was a professor at the University of Warsaw.
In the early 20th century, Józef Sicinski was a Polish military commander who served in World War I and the Polish-Soviet War of 1919-1921. He played a crucial role in defending the city of Lwów (now Lviv, Ukraine) during the Polish-Soviet War.
While the SICINSKI surname has its roots in Poland, it has since spread to other parts of the world due to immigration and migration. However, it remains most prevalent in Poland and among Polish communities worldwide.
Demographics
Among Census respondents with the surname Sicinski, the largest self-reported group is White at 88.5%. The next largest groups are Hispanic (7.7%) and Asian/Pacific Islander (1.9%).
The bar chart below shows how Sicinski 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 Sicinski surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Sicinski 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
+23 bearers (+8.6%)
2020
National surname rank
-32 bearers (-11.0%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #68,360 | 269 | 0.10 | First available Census row | First available Census row |
| 2010 | #67,519 | 292 | 0.10 | +23 bearers (+8.6%) | Up 841 places |
| 2020 | #79,118 | 260 | 0.09 | -32 bearers (-11.0%) | Down 11,599 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 Sicinski 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 | #67,519 | #79,118 | -17.2% |
| Count | 292 | 260 | -11.0% |
| Per 100K | 0.10 | 0.09 | -13.0% |
Between the 2010 and 2020 Census, the number of Sicinski bearers went from 292 to 260 (-11.0% change). The surname moved down 11,599 positions in the national ranking, going from #67,519 to #79,118.
FAQ
Name Census estimates that about 298 living Americans carry the surname Sicinski. Using the current population baseline, that works out to roughly 1 in 1,150,182 residents.
Sicinski ranks #79,118 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.09 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 260 people with the surname Sicinski. That is different from the site's living-bearer estimate (298), 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 0.09 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 Sicinski.
Between 2010 and 2020, the surname Sicinski went from 292 recorded bearers to 260. That is a decrease of 32 (-11.0%). In the national ranking it fell from #67,519 to #79,118.
Among Census respondents with the surname Sicinski, the largest self-reported group is White at 88.5%. The next largest groups are Hispanic (7.7%) and Asian/Pacific Islander (1.9%). 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 Sicinski in the 2020 Census, accounting for 88.5% (230 people in the source table).
Sicinski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (88.5%), Hispanic (7.7%), Asian/Pacific Islander (1.9%). 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 Sicinski (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 Polish surname derived from "Siczka", a diminutive form of "Sic", referring to someone from the village of Siczki. 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 Sicinski (0.09 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
Want to know how many people have the surname Sicinski? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.