2000
#127,948
National surname rank
Recorded bearers 123
First available Census row
Per 100,000 0.05
Very Rare Last name
Rosansky
From a rose garden or someone who grew roses.
According to the 2020 US Census Bureau surname tables, roughly 126 Americans carry the last name Rosansky. That puts it at #149,446 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,720,273 residents).
This page is the full Name Census profile for the Rosansky 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
126
1 in 2,720,273
Census rank
#149,446
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
110
very rare in the US
Popularity narrative
The Census Bureau recorded 110 bearers of the surname Rosansky in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 149446th position in the national surname ranking.
Among Census respondents with the surname Rosansky, the largest self-reported group is White at 92.7%. The next largest groups are Hispanic (3.6%) and Two or More Races (2.7%).
Origin
Meaning and origin of Rosansky
The surname Rosansky originated in the Eastern European regions of modern-day Poland and Ukraine during the 16th century. It is derived from the Slavic root words "roz" meaning "rose" and "anski" meaning "of or from," suggesting a connection to a place name or location associated with roses or rose gardens.
One of the earliest recorded instances of the name Rosansky can be found in the parish records of the town of Rożnów, located in the Małopolska region of southern Poland. This town's name is derived from the Polish word "róża," meaning "rose," and it is believed that the Rosansky surname may have originated from this place name or a similar one in the area.
Historical records from the 17th and 18th centuries show several notable individuals bearing the Rosansky surname. In the late 17th century, a merchant named Jakub Rosansky was documented as residing in the city of Lublin, which was a major trade center in the Polish-Lithuanian Commonwealth at the time.
Another prominent figure was Franciszek Rosansky (1720-1786), a Polish noble and landowner who held estates in the Galicia region, which was then part of the Austrian Empire. He was known for his involvement in local politics and served as a representative in the regional parliament.
In the 19th century, the Rosansky surname appeared in various records across Eastern Europe, including the Russian Empire. One notable individual was Mikhail Rosansky (1845-1912), a Russian military officer who participated in the Russo-Turkish War of 1877-1878 and received several military honors for his service.
Later, in the early 20th century, a Polish artist named Jan Rosansky (1887-1965) gained recognition for his landscape paintings, which often depicted scenes from the Tatra Mountains region in southern Poland.
Another individual of note was Stanislav Rosansky (1902-1985), a Czech scientist and inventor who made significant contributions to the field of optics and held several patents for his inventions related to lens design and optical instruments.
While the Rosansky surname has its roots in Eastern Europe, it has since spread to other parts of the world, with descendants carrying on the name in various countries and regions.
Demographics
Ancestry and ethnicity for Rosansky
Among Census respondents with the surname Rosansky, the largest self-reported group is White at 92.7%. The next largest groups are Hispanic (3.6%) and Two or More Races (2.7%).
The bar chart below shows how Rosansky 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 Rosansky surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.7% · 102
- Hispanic or Latino3.6% · 4
- Two or more races2.7% · 3
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Rosansky
Rosansky 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
#134,712
National surname rank
Recorded bearers 125
+2 bearers (+1.6%)
Per 100,000 0.04
Rank movement Down 6,764 places
2020
#149,446
National surname rank
Recorded bearers 110
-15 bearers (-12.0%)
Per 100,000 0.04
Rank movement Down 14,734 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #127,948 | 123 | 0.05 | First available Census row | First available Census row |
| 2010 | #134,712 | 125 | 0.04 | +2 bearers (+1.6%) | Down 6,764 places |
| 2020 | #149,446 | 110 | 0.04 | -15 bearers (-12.0%) | Down 14,734 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 Rosansky 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 | #134,712 | #149,446 | -10.9% |
| Count | 125 | 110 | -12.0% |
| Per 100K | 0.04 | 0.04 | -8.0% |
Between the 2010 and 2020 Census, the number of Rosansky bearers went from 125 to 110 (-12.0% change). The surname moved down 14,734 positions in the national ranking, going from #134,712 to #149,446.
FAQ
Rosansky surname: questions and answers
How many people in the U.S. have the surname Rosansky?
Name Census estimates that about 126 living Americans carry the surname Rosansky. Using the current population baseline, that works out to roughly 1 in 2,720,273 residents.
How common is Rosansky?
Rosansky ranks #149,446 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 110 people with the surname Rosansky. That is different from the site's living-bearer estimate (126), 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 Rosansky.
Has Rosansky become more or less common over time?
Between 2010 and 2020, the surname Rosansky went from 125 recorded bearers to 110. That is a decrease of 15 (-12.0%). In the national ranking it fell from #134,712 to #149,446.
What does the Census say about the background of Rosansky?
Among Census respondents with the surname Rosansky, the largest self-reported group is White at 92.7%. The next largest groups are Hispanic (3.6%) and Two or More Races (2.7%). 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 Rosansky in the 2020 Census, accounting for 92.7% (102 people in the source table).
What is the full ancestry breakdown?
Rosansky appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.7%), Hispanic (3.6%), Two or More Races (2.7%). 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 Rosansky (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 Rosansky mean?
From a rose garden or someone who grew roses. 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 Rosansky (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 people share the surname Rosansky?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.