2010
#159,712
National surname rank
Recorded bearers 101
First available Census row
Per 100,000 0.03
Very Rare Last name
Mauz
A surname of German origin meaning mouse or rat.
According to the 2020 US Census Bureau surname tables, roughly 128 Americans carry the last name Mauz. That puts it at #147,954 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,677,768 residents).
This page is the full Name Census profile for the Mauz 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
128
1 in 2,677,768
Census rank
#147,954
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
112
very rare in the US
Popularity narrative
The Census Bureau recorded 112 bearers of the surname Mauz in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147954th position in the national surname ranking.
Among Census respondents with the surname Mauz, the largest self-reported group is White at 73.2%. The next largest groups are Hispanic (25.0%) and Black (0.9%).
Origin
Meaning and origin of Mauz
The surname MAUZ originated in Germany during the Middle Ages. It is believed to be a variant of the German word "Maus," meaning mouse. This suggests that the name may have been given as a nickname to someone with certain physical or personality traits associated with a mouse, such as being small, quiet, or timid.
The earliest recorded instances of the name MAUZ can be found in historical documents from the 14th century in the regions of Bavaria and Saxony. One of the earliest mentions is in the town records of Nuremberg, where a Hans Mauz is listed as a resident in the year 1381.
In the 15th century, the name appears to have spread to other parts of Germany, with records showing individuals named MAUZ in cities like Cologne and Frankfurt. During this time, surnames were becoming more widespread as a means of distinguishing between families and individuals.
One notable bearer of the MAUZ surname was Johann Mauz, a German painter and engraver who lived in the late 16th century. His works, primarily religious paintings and engravings, can still be found in churches and museums across Germany.
Another historically significant figure with the MAUZ surname was Friedrich Mauz, a German theologian and professor who lived in the 17th century. He taught at the University of Heidelberg and wrote several influential works on theology and philosophy.
In the 18th century, the MAUZ name was found in regions beyond Germany, likely due to migration and trade. Records show individuals with this surname in neighboring countries such as Austria and Switzerland.
One of the most notable bearers of the MAUZ name during this period was Carl Philipp Mauz, a German composer and musician who lived from 1735 to 1807. He served as a court musician in several German principalities and composed numerous works for orchestra and chamber ensembles.
As the 19th century dawned, the MAUZ surname continued to spread across Europe and even to other continents, carried by German immigrants and settlers. One such individual was Johann Mauz, a German-American farmer and landowner who settled in Pennsylvania in the early 1800s.
Throughout its long history, the MAUZ surname has been associated with various occupations and professions, from artists and scholars to farmers and tradesmen. While its origins may have been humble, the name has left its mark on the cultural and historical tapestry of Germany and beyond.
Demographics
Ancestry and ethnicity for Mauz
Among Census respondents with the surname Mauz, the largest self-reported group is White at 73.2%. The next largest groups are Hispanic (25.0%) and Black (0.9%).
The bar chart below shows how Mauz 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 Mauz surname at the time of the 2020 Census, not any inherent property of the name itself.
- White73.2% · 82
- Hispanic or Latino25.0% · 28
- Black or African American0.9% · 1
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Mauz
Mauz appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#147,954
National surname rank
Recorded bearers 112
+11 bearers (+10.9%)
Per 100,000 0.04
Rank movement Up 11,758 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #159,712 | 101 | 0.03 | First available Census row | First available Census row |
| 2020 | #147,954 | 112 | 0.04 | +11 bearers (+10.9%) | Up 11,758 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 Mauz 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 | #159,712 | #147,954 | 7.4% |
| Count | 101 | 112 | 10.9% |
| Per 100K | 0.03 | 0.04 | 24.9% |
Between the 2010 and 2020 Census, the number of Mauz bearers went from 101 to 112 (+10.9% change). The surname moved up 11,758 positions in the national ranking, going from #159,712 to #147,954.
FAQ
Mauz surname: questions and answers
How many people in the U.S. have the surname Mauz?
Name Census estimates that about 128 living Americans carry the surname Mauz. Using the current population baseline, that works out to roughly 1 in 2,677,768 residents.
How common is Mauz?
Mauz ranks #147,954 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 112 people with the surname Mauz. That is different from the site's living-bearer estimate (128), 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 Mauz.
Has Mauz become more or less common over time?
Between 2010 and 2020, the surname Mauz went from 101 recorded bearers to 112. That is an increase of 11 (+10.9%). In the national ranking it rose from #159,712 to #147,954.
What does the Census say about the background of Mauz?
Among Census respondents with the surname Mauz, the largest self-reported group is White at 73.2%. The next largest groups are Hispanic (25.0%) and 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 Mauz in the 2020 Census, accounting for 73.2% (82 people in the source table).
What is the full ancestry breakdown?
Mauz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (73.2%), Hispanic (25.0%), 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 Mauz (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 Mauz mean?
A surname of German origin meaning mouse or rat. 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 Mauz (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 Mauz?
You can see how many people are called Mauz on our sister site HowManyOfMe.org — same data roots, lighter UI.