2000
#120,330
National surname rank
First available Census row
From German elements meaning "red" and "ridge" plus "farmhouse", possibly relating to someone living on a red-colored ridge.
According to the 2020 US Census Bureau surname tables, roughly 116 Americans carry the last name Ridlehuber. That puts it at #155,270 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,954,779 residents).
This page is the full Name Census profile for the Ridlehuber 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
116
1 in 2,954,779
Census rank
#155,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
101
very rare in the US
Popularity narrative
The Census Bureau recorded 101 bearers of the surname Ridlehuber in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 155270th position in the national surname ranking.
Among Census respondents with the surname Ridlehuber, the largest self-reported group is White at 94.1%. The next largest groups are Black (2.0%) and Hispanic (2.0%).
Origin
The surname RIDLEHUBER has its roots in the German language, with origins dating back to the late 16th century. It is believed to have originated in the region of Bavaria, where the name was initially spelled as "Ridlehuber." This spelling is thought to be a combination of two old Germanic words, "ridl" and "huber," meaning "small clearing" and "farmer," respectively.
One of the earliest recorded instances of the RIDLEHUBER name appears in a baptismal record from the village of Rothenburg ob der Tauber in 1589, where a child named Hans RIDLEHUBER was baptized. This record suggests that the RIDLEHUBER family had established itself in the region by the late 16th century.
In the 17th century, the name RIDLEHUBER began to appear in various legal documents and land records across Bavaria. One notable mention is in the town of Augsburg, where a Johann RIDLEHUBER is listed as a landowner in 1637. This suggests that the family had gained some prominence and wealth during this period.
The 18th century saw the RIDLEHUBER name spread beyond Bavaria to other parts of Germany. In 1723, a merchant named Friedrich RIDLEHUBER was recorded in the city of Hamburg, indicating that the family had begun to establish itself in northern Germany as well.
One of the earliest notable figures with the RIDLEHUBER surname was Johann Christoph RIDLEHUBER (1698-1771), a distinguished theologian and philosopher who served as a professor at the University of Jena. His works on ethics and moral philosophy were widely influential in the late 18th century.
Another notable RIDLEHUBER was Wilhelm RIDLEHUBER (1822-1891), a German architect who designed several notable buildings in Berlin, including the Friedrichswerder Church and the Neue Wache.
In the 19th century, the RIDLEHUBER name began to appear in various records across Europe, as members of the family emigrated to other countries. One such example is Maximilian RIDLEHUBER (1838-1912), a German-born artist who settled in Paris and became known for his landscapes and portraits.
As the RIDLEHUBER family continued to spread across Europe and beyond, variations in the spelling of the name began to emerge. In some regions, the name was spelled as "Ridlehüber" or "Ridlehueber," reflecting regional linguistic differences.
Another notable figure with the RIDLEHUBER surname was Karl RIDLEHUBER (1873-1949), a German politician and economist who served as a member of the Reichstag during the Weimar Republic.
While the RIDLEHUBER name is relatively uncommon today, it has a rich history that spans several centuries and reflects the family's origins in the heart of Bavaria. The name's evolution and spread across Europe serve as a testament to the family's enduring legacy and its contributions to various fields throughout history.
Demographics
Among Census respondents with the surname Ridlehuber, the largest self-reported group is White at 94.1%. The next largest groups are Black (2.0%) and Hispanic (2.0%).
The bar chart below shows how Ridlehuber 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 Ridlehuber surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Ridlehuber 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
-18 bearers (-13.5%)
2020
National surname rank
-14 bearers (-12.2%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #120,330 | 133 | 0.05 | First available Census row | First available Census row |
| 2010 | #144,141 | 115 | 0.04 | -18 bearers (-13.5%) | Down 23,811 places |
| 2020 | #155,270 | 101 | 0.03 | -14 bearers (-12.2%) | Down 11,129 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 Ridlehuber 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 | #144,141 | #155,270 | -7.7% |
| Count | 115 | 101 | -12.2% |
| Per 100K | 0.04 | 0.03 | -15.5% |
Between the 2010 and 2020 Census, the number of Ridlehuber bearers went from 115 to 101 (-12.2% change). The surname moved down 11,129 positions in the national ranking, going from #144,141 to #155,270.
FAQ
Name Census estimates that about 116 living Americans carry the surname Ridlehuber. Using the current population baseline, that works out to roughly 1 in 2,954,779 residents.
Ridlehuber ranks #155,270 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.
The raw 2020 Census file counted 101 people with the surname Ridlehuber. That is different from the site's living-bearer estimate (116), 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 0.03 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 Ridlehuber.
Between 2010 and 2020, the surname Ridlehuber went from 115 recorded bearers to 101. That is a decrease of 14 (-12.2%). In the national ranking it fell from #144,141 to #155,270.
Among Census respondents with the surname Ridlehuber, the largest self-reported group is White at 94.1%. The next largest groups are Black (2.0%) and Hispanic (2.0%). 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 Ridlehuber in the 2020 Census, accounting for 94.1% (95 people in the source table).
Ridlehuber appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.1%), Black (2.0%), Hispanic (2.0%). 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.
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 Ridlehuber (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.
From German elements meaning "red" and "ridge" plus "farmhouse", possibly relating to someone living on a red-colored ridge. 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 Ridlehuber (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.
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.