2000
#118,954
National surname rank
Recorded bearers 135
First available Census row
Per 100,000 0.05
Very Rare Last name
Untz
A surname originating from Germany, possibly derived from a location or occupation.
According to the 2020 US Census Bureau surname tables, roughly 136 Americans carry the last name Untz. That puts it at #142,788 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,520,252 residents).
This page is the full Name Census profile for the Untz 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
136
1 in 2,520,252
Census rank
#142,788
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
119
very rare in the US
Popularity narrative
The Census Bureau recorded 119 bearers of the surname Untz in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 142788th position in the national surname ranking.
Among Census respondents with the surname Untz, the largest self-reported group is White at 91.6%. The next largest groups are Hispanic (5.0%) and Two or More Races (2.5%).
Origin
Meaning and origin of Untz
The surname "UNTZ" is believed to have its origins in the German language. It is thought to have derived from the Old High German word "unz", which meant "until" or "as far as". This suggests that the name may have originally referred to a person's place of residence or the extent of their property.
The earliest known written records of the surname "UNTZ" date back to the 13th century, where it appears in various medieval manuscripts and chronicles from the region now known as Germany. One notable mention is in the Codex Diplomaticus Saxoniae, a collection of historical documents from the state of Saxony, which includes references to individuals with the surname "UNTZ" as early as the year 1285.
In the 14th century, the surname is found in the records of the city of Nuremberg, where a family by the name of Untz was mentioned in connection with a property dispute. This suggests that the name was well-established in the region at that time.
One of the earliest known bearers of the surname "UNTZ" was Hans Untz, a merchant and burgher who lived in the city of Augsburg in the late 15th century. He was a prominent figure in the city's guild system and played a role in the local government.
Another notable individual with the surname "UNTZ" was Johann Untz, a Protestant reformer who lived in the 16th century. He was a follower of Martin Luther and played a role in the spread of the Reformation in the region of Saxony.
In the 17th century, the surname "UNTZ" appeared in the records of the city of Cologne, where a family by that name was involved in the textile trade. One member of this family, Peter Untz, was a successful merchant and served as a member of the city council in the late 1600s.
As the surname spread across Germany and into neighboring regions, various spelling variations emerged, such as "Untz", "Untze", and "Unze". Some of these variations may have been influenced by local dialects or the preferences of individual families.
Other notable bearers of the surname "UNTZ" include Friedrich Untz, a German philosopher and academic who lived in the 19th century, and Wilhelm Untz, a military officer who served in the Prussian Army during the Franco-Prussian War of 1870-1871.
While the surname "UNTZ" is not as common today as it once was, it has a rich history that can be traced back to medieval Germany and the development of surnames based on geographical features or locations.
Demographics
Ancestry and ethnicity for Untz
Among Census respondents with the surname Untz, the largest self-reported group is White at 91.6%. The next largest groups are Hispanic (5.0%) and Two or More Races (2.5%).
The bar chart below shows how Untz 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 Untz surname at the time of the 2020 Census, not any inherent property of the name itself.
- White91.6% · 109
- Hispanic or Latino5.0% · 6
- Two or more races2.5% · 3
- Asian and Pacific Islander0.8% · 1
Timeline
Historical Census data for Untz
Untz 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
#139,228
National surname rank
Recorded bearers 120
-15 bearers (-11.1%)
Per 100,000 0.04
Rank movement Down 20,274 places
2020
#142,788
National surname rank
Recorded bearers 119
-1 bearers (-0.8%)
Per 100,000 0.04
Rank movement Down 3,560 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #118,954 | 135 | 0.05 | First available Census row | First available Census row |
| 2010 | #139,228 | 120 | 0.04 | -15 bearers (-11.1%) | Down 20,274 places |
| 2020 | #142,788 | 119 | 0.04 | -1 bearers (-0.8%) | Down 3,560 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 Untz 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 | #139,228 | #142,788 | -2.6% |
| Count | 120 | 119 | -0.8% |
| Per 100K | 0.04 | 0.04 | -0.5% |
Between the 2010 and 2020 Census, the number of Untz bearers went from 120 to 119 (-0.8% change). The surname moved down 3,560 positions in the national ranking, going from #139,228 to #142,788.
FAQ
Untz surname: questions and answers
How many people in the U.S. have the surname Untz?
Name Census estimates that about 136 living Americans carry the surname Untz. Using the current population baseline, that works out to roughly 1 in 2,520,252 residents.
How common is Untz?
Untz ranks #142,788 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 119 people with the surname Untz. That is different from the site's living-bearer estimate (136), 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 Untz.
Has Untz become more or less common over time?
Between 2010 and 2020, the surname Untz went from 120 recorded bearers to 119. That is a decrease of 1 (-0.8%). In the national ranking it fell from #139,228 to #142,788.
What does the Census say about the background of Untz?
Among Census respondents with the surname Untz, the largest self-reported group is White at 91.6%. The next largest groups are Hispanic (5.0%) and Two or More Races (2.5%). 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 Untz in the 2020 Census, accounting for 91.6% (109 people in the source table).
What is the full ancestry breakdown?
Untz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (91.6%), Hispanic (5.0%), Two or More Races (2.5%). 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 Untz (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 Untz mean?
A surname originating from Germany, possibly derived from a location or occupation. 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 Untz (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 Untz?
Our sister site HowManyOfMe.org answers how many people are called Untz at a glance, with the living-bearer count up front.