2000
#149,328
National surname rank
Recorded bearers 101
First available Census row
Per 100,000 0.04
Very Rare Last name
Rambousek
A surname derived from an occupation involving rams or sheep farming.
According to the 2020 US Census Bureau surname tables, roughly 123 Americans carry the last name Rambousek. That puts it at #151,639 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,786,621 residents).
This page is the full Name Census profile for the Rambousek 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
123
1 in 2,786,621
Census rank
#151,639
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
107
very rare in the US
Popularity narrative
The Census Bureau recorded 107 bearers of the surname Rambousek in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 151639th position in the national surname ranking.
Among Census respondents with the surname Rambousek, the largest self-reported group is White at 99.1%. The next largest groups are Black (0.9%).
Origin
Meaning and origin of Rambousek
The surname Rambousek originates from the Czech Republic, with its roots traced back to the 15th century. It is derived from the Czech word "rambousek," which means "raspberry bush" or "raspberry plant." This suggests that the name may have been given to someone who lived near or worked with raspberry bushes.
One of the earliest recorded instances of the name Rambousek can be found in a land registry document from the town of Litomerice, dated 1487. The document mentions a man named Jan Rambousek, who was a landowner in the region.
In the 16th century, variations of the name began to appear in different regions of Bohemia (now part of the Czech Republic). For instance, the spelling "Rambausek" was found in records from the city of Pilsen, while "Rambousik" was used in the town of Pardubice.
During the 17th century, the name Rambousek gained more prominence, particularly in the area around Prague. A notable figure from this period was Vaclav Rambousek (1612-1688), a respected artisan and woodcarver who created intricate religious sculptures for churches in the region.
In the 18th century, the name Rambousek spread to other parts of the Austro-Hungarian Empire. One notable individual was Frantisek Rambousek (1735-1801), a renowned architect from Moravia who designed several notable buildings, including the Church of St. Michael in Brno.
The 19th century saw the name Rambousek continue to be found throughout the Czech lands, with several individuals making their mark in various fields. One example is Antonin Rambousek (1845-1912), a respected writer and poet who published several collections of poetry and prose.
Another notable figure from the 19th century was Katerina Rambousek (1857-1934), a pioneering educator and advocate for women's rights. She founded one of the first schools for girls in Prague and played a significant role in promoting education for women in the Czech lands.
As the 20th century dawned, the name Rambousek continued to be a part of Czech history and culture. One notable individual was Jaroslav Rambousek (1920-1995), a renowned scientist and engineer who made significant contributions to the field of nuclear physics.
While the name Rambousek is predominantly found in the Czech Republic and surrounding regions, it has also spread to other parts of the world due to migration and immigration patterns. However, its roots and historical significance remain deeply tied to the Czech lands and the rich cultural heritage of the region.
Demographics
Ancestry and ethnicity for Rambousek
Among Census respondents with the surname Rambousek, the largest self-reported group is White at 99.1%. The next largest groups are Black (0.9%).
The bar chart below shows how Rambousek 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 Rambousek surname at the time of the 2020 Census, not any inherent property of the name itself.
- White99.1% · 106
- Black or African American0.9% · 1
Timeline
Historical Census data for Rambousek
Rambousek 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
+6 bearers (+5.9%)
Per 100,000 0.04
Rank movement Down 3,300 places
2020
#151,639
National surname rank
Recorded bearers 107
+0 bearers (+0.0%)
Per 100,000 0.04
Rank movement Up 989 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #149,328 | 101 | 0.04 | First available Census row | First available Census row |
| 2010 | #152,628 | 107 | 0.04 | +6 bearers (+5.9%) | Down 3,300 places |
| 2020 | #151,639 | 107 | 0.04 | +0 bearers (+0.0%) | Up 989 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 Rambousek 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 | #151,639 | 0.6% |
| Count | 107 | 107 | 0.0% |
| Per 100K | 0.04 | 0.04 | -10.5% |
Between the 2010 and 2020 Census, the number of Rambousek bearers went from 107 to 107 (+0.0% change). The surname moved up 989 positions in the national ranking, going from #152,628 to #151,639.
FAQ
Rambousek surname: questions and answers
How many people in the U.S. have the surname Rambousek?
Name Census estimates that about 123 living Americans carry the surname Rambousek. Using the current population baseline, that works out to roughly 1 in 2,786,621 residents.
How common is Rambousek?
Rambousek ranks #151,639 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 107 people with the surname Rambousek. That is different from the site's living-bearer estimate (123), 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 Rambousek.
Has Rambousek become more or less common over time?
Between 2010 and 2020, the surname Rambousek went from 107 recorded bearers to 107. That is an increase of 0 (+0.0%). In the national ranking it rose from #152,628 to #151,639.
What does the Census say about the background of Rambousek?
Among Census respondents with the surname Rambousek, the largest self-reported group is White at 99.1%. The next largest groups are Black (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 Rambousek in the 2020 Census, accounting for 99.1% (106 people in the source table).
What is the full ancestry breakdown?
Rambousek appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (99.1%), Black (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 Rambousek (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 Rambousek mean?
A surname derived from an occupation involving rams or sheep farming. 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 Rambousek (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 have the last name Rambousek?
See how many people have the surname Rambousek on HowManyOfMe.org, our sister site built around that single question.