2000
#128,797
National surname rank
Recorded bearers 122
First available Census row
Per 100,000 0.05
Very Rare Last name
Deruntz
A surname derived from a Germanic word meaning "to run" or "runner".
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Deruntz. That puts it at #147,221 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,636,572 residents).
This page is the full Name Census profile for the Deruntz 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
130
1 in 2,636,572
Census rank
#147,221
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
113
very rare in the US
Popularity narrative
The Census Bureau recorded 113 bearers of the surname Deruntz in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147221st position in the national surname ranking.
Among Census respondents with the surname Deruntz, the largest self-reported group is White at 90.3%. The next largest groups are Hispanic (3.5%) and Asian/Pacific Islander (3.5%).
Origin
Meaning and origin of Deruntz
The surname DERUNTZ is of German origin, tracing its roots back to the 16th century. It is believed to have originated in the regions of Bavaria and Baden-Württemberg, where early records show variations of the spelling, such as "Derunz" and "Derunze."
The name is thought to be derived from the Middle High German word "derunz," which means "disagreement" or "dispute." This suggests that the name may have been initially given as a descriptive nickname to someone with a contentious or argumentative nature.
One of the earliest known references to the name DERUNTZ can be found in the records of the town of Rothenburg ob der Tauber, dating back to 1583. These records mention a certain Hans Deruntz, a local merchant and landowner.
In the 17th century, the name appears in the parish records of the village of Weisenbach, where a family by the name of Deruntz is documented as residing from the late 1600s until the early 1800s. Notable individuals from this lineage include Johann Deruntz (1673-1741), a respected farmer and vintner, and his son, Michael Deruntz (1702-1779), who served as the village mayor for several terms.
As the centuries progressed, members of the Deruntz family migrated to other parts of Germany and beyond. In the late 18th century, records show a Jakob Deruntz (1762-1832) residing in the city of Strasbourg, then part of the Holy Roman Empire, where he worked as a craftsman specializing in woodcarving.
Another noteworthy bearer of the name was Friedrich Deruntz (1821-1897), a German philosopher and educator who taught at universities in Leipzig and Berlin. His published works, which explored metaphysics and ethics, were widely influential in academic circles of the time.
In the 19th century, the name also found its way to Austria, with the birth of Alois Deruntz (1845-1923) in the town of Innsbruck. Alois was a renowned architect who designed several iconic buildings in Vienna, including the Österreichische Nationalbibliothek (Austrian National Library).
While the DERUNTZ surname may not be as widespread as some others, it holds a rich history that spans multiple centuries and regions, with notable individuals who left their mark in various fields.
Demographics
Ancestry and ethnicity for Deruntz
Among Census respondents with the surname Deruntz, the largest self-reported group is White at 90.3%. The next largest groups are Hispanic (3.5%) and Asian/Pacific Islander (3.5%).
The bar chart below shows how Deruntz 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 Deruntz surname at the time of the 2020 Census, not any inherent property of the name itself.
- White90.3% · 102
- Hispanic or Latino3.5% · 4
- Asian and Pacific Islander3.5% · 4
- Two or more races2.7% · 3
Timeline
Historical Census data for Deruntz
Deruntz 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
#141,140
National surname rank
Recorded bearers 118
-4 bearers (-3.3%)
Per 100,000 0.04
Rank movement Down 12,343 places
2020
#147,221
National surname rank
Recorded bearers 113
-5 bearers (-4.2%)
Per 100,000 0.04
Rank movement Down 6,081 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #128,797 | 122 | 0.05 | First available Census row | First available Census row |
| 2010 | #141,140 | 118 | 0.04 | -4 bearers (-3.3%) | Down 12,343 places |
| 2020 | #147,221 | 113 | 0.04 | -5 bearers (-4.2%) | Down 6,081 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 Deruntz 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 | #141,140 | #147,221 | -4.3% |
| Count | 118 | 113 | -4.2% |
| Per 100K | 0.04 | 0.04 | -5.5% |
Between the 2010 and 2020 Census, the number of Deruntz bearers went from 118 to 113 (-4.2% change). The surname moved down 6,081 positions in the national ranking, going from #141,140 to #147,221.
FAQ
Deruntz surname: questions and answers
How many people in the U.S. have the surname Deruntz?
Name Census estimates that about 130 living Americans carry the surname Deruntz. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
How common is Deruntz?
Deruntz ranks #147,221 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 113 people with the surname Deruntz. That is different from the site's living-bearer estimate (130), 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 Deruntz.
Has Deruntz become more or less common over time?
Between 2010 and 2020, the surname Deruntz went from 118 recorded bearers to 113. That is a decrease of 5 (-4.2%). In the national ranking it fell from #141,140 to #147,221.
What does the Census say about the background of Deruntz?
Among Census respondents with the surname Deruntz, the largest self-reported group is White at 90.3%. The next largest groups are Hispanic (3.5%) and Asian/Pacific Islander (3.5%). 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 Deruntz in the 2020 Census, accounting for 90.3% (102 people in the source table).
What is the full ancestry breakdown?
Deruntz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (90.3%), Hispanic (3.5%), Asian/Pacific Islander (3.5%). 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 Deruntz (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 Deruntz mean?
A surname derived from a Germanic word meaning "to run" or "runner". 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 Deruntz (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 Americans have the surname Deruntz?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.