2000
#147,095
National surname rank
Recorded bearers 103
First available Census row
Per 100,000 0.04
Very Rare Last name
Vonrohr
A locational surname originating from a place named Rohr.
According to the 2020 US Census Bureau surname tables, roughly 127 Americans carry the last name Vonrohr. That puts it at #148,665 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,698,853 residents).
This page is the full Name Census profile for the Vonrohr 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
127
1 in 2,698,853
Census rank
#148,665
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
111
very rare in the US
Popularity narrative
The Census Bureau recorded 111 bearers of the surname Vonrohr in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 148665th position in the national surname ranking.
Among Census respondents with the surname Vonrohr, the largest self-reported group is White at 95.5%. The next largest groups are Hispanic (2.7%) and Asian/Pacific Islander (1.8%).
Origin
Meaning and origin of Vonrohr
The surname VONROHR has its origins in Germany, tracing back to the 15th century. It is believed to have derived from the German words "von" meaning "from" and "Rohr" referring to a reed or cane. This suggests that the earliest bearers of the name may have lived near a marshy area abundant with reeds or canes.
One of the earliest recorded instances of the name VONROHR appears in the town records of Nuremberg, dated 1487, mentioning a merchant named Hans VONROHR. Another notable early reference is in the Palatinate region's census of 1556, which lists a family by the name of VONROHR residing in the village of Rohrbach.
During the 16th and 17th centuries, the name was commonly spelled as "von Rohr" or "von Roher" in various German-speaking regions. It is possible that the name was originally associated with a specific place name, such as Rohrbach or Rohrau, which contain the root "Rohr."
In the 18th century, a prominent figure with the surname VONROHR was Johann Philipp VONROHR (1737-1805), a German botanist and entomologist who made significant contributions to the study of insects and their taxonomy.
Another notable bearer of the name was Carl VONROHR (1858-1934), a German architect who designed several important buildings in Berlin and other cities during the late 19th and early 20th centuries.
The name also spread to other parts of Europe through migration and intermarriage. In the Netherlands, a notable figure was Cornelius VONROHR (1692-1767), a Dutch merchant and politician who served as the mayor of Amsterdam in the mid-18th century.
In the United States, one of the earliest recorded individuals with the surname VONROHR was Johann VONROHR (1756-1832), a Hessian soldier who fought in the American Revolutionary War and later settled in Pennsylvania.
Throughout the 19th and early 20th centuries, the VONROHR surname continued to be found across various German-speaking regions, as well as in countries with significant German immigration, such as the United States and Canada.
Demographics
Ancestry and ethnicity for Vonrohr
Among Census respondents with the surname Vonrohr, the largest self-reported group is White at 95.5%. The next largest groups are Hispanic (2.7%) and Asian/Pacific Islander (1.8%).
The bar chart below shows how Vonrohr 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 Vonrohr surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.5% · 106
- Hispanic or Latino2.7% · 3
- Asian and Pacific Islander1.8% · 2
Timeline
Historical Census data for Vonrohr
Vonrohr 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
#140,157
National surname rank
Recorded bearers 119
+16 bearers (+15.5%)
Per 100,000 0.04
Rank movement Up 6,938 places
2020
#148,665
National surname rank
Recorded bearers 111
-8 bearers (-6.7%)
Per 100,000 0.04
Rank movement Down 8,508 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #147,095 | 103 | 0.04 | First available Census row | First available Census row |
| 2010 | #140,157 | 119 | 0.04 | +16 bearers (+15.5%) | Up 6,938 places |
| 2020 | #148,665 | 111 | 0.04 | -8 bearers (-6.7%) | Down 8,508 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 Vonrohr 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 | #140,157 | #148,665 | -6.1% |
| Count | 119 | 111 | -6.7% |
| Per 100K | 0.04 | 0.04 | -7.2% |
Between the 2010 and 2020 Census, the number of Vonrohr bearers went from 119 to 111 (-6.7% change). The surname moved down 8,508 positions in the national ranking, going from #140,157 to #148,665.
FAQ
Vonrohr surname: questions and answers
How many people in the U.S. have the surname Vonrohr?
Name Census estimates that about 127 living Americans carry the surname Vonrohr. Using the current population baseline, that works out to roughly 1 in 2,698,853 residents.
How common is Vonrohr?
Vonrohr ranks #148,665 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 111 people with the surname Vonrohr. That is different from the site's living-bearer estimate (127), 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 Vonrohr.
Has Vonrohr become more or less common over time?
Between 2010 and 2020, the surname Vonrohr went from 119 recorded bearers to 111. That is a decrease of 8 (-6.7%). In the national ranking it fell from #140,157 to #148,665.
What does the Census say about the background of Vonrohr?
Among Census respondents with the surname Vonrohr, the largest self-reported group is White at 95.5%. The next largest groups are Hispanic (2.7%) and Asian/Pacific Islander (1.8%). 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 Vonrohr in the 2020 Census, accounting for 95.5% (106 people in the source table).
What is the full ancestry breakdown?
Vonrohr appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.5%), Hispanic (2.7%), Asian/Pacific Islander (1.8%). 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 Vonrohr (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 Vonrohr mean?
A locational surname originating from a place named Rohr. 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 Vonrohr (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 Vonrohr?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.