2000
#118,236
National surname rank
Recorded bearers 136
First available Census row
Per 100,000 0.05
Very Rare Last name
Reinarz
A variant spelling of the German surname "Reinarz" meaning "pure" or "sincere."
According to the 2020 US Census Bureau surname tables, roughly 139 Americans carry the last name Reinarz. That puts it at #141,309 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,465,859 residents).
This page is the full Name Census profile for the Reinarz 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
139
1 in 2,465,859
Census rank
#141,309
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
121
very rare in the US
Popularity narrative
The Census Bureau recorded 121 bearers of the surname Reinarz in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 141309th position in the national surname ranking.
Among Census respondents with the surname Reinarz, the largest self-reported group is White at 90.1%. The next largest groups are Hispanic (4.1%) and Two or More Races (3.3%).
Origin
Meaning and origin of Reinarz
The surname REINARZ is thought to have originated in Germany during the medieval period, with roots dating back to the 12th or 13th century. It is believed to have derived from the Old German words "rein" meaning "pure" or "clean" and "arz" meaning "healer" or "doctor". This suggests that the name may have been initially associated with individuals who practiced medicine or healing arts.
One of the earliest known references to the name REINARZ can be found in a Latin manuscript from the late 13th century, which mentions a "Reinardus Medicus" (Reinard the Physician) from the town of Mainz. This provides evidence that the name was in use during that time and had a connection to the medical profession.
In the 14th century, there are records of a family named REINARZ residing in the region of Saxony, Germany. This family is mentioned in several historical documents, including land deeds and tax records, indicating that they were likely landowners or prominent citizens in their local community.
During the Renaissance period, a notable figure bearing the name REINARZ was Johannes Reinarz (1492-1558), a German humanist scholar and philosopher. He was born in Ingolstadt and served as a professor at the University of Ingolstadt, where he taught rhetoric and philosophy. His writings on ethics and classical literature were widely influential during his time.
Another historical figure with the surname REINARZ was Christoph Reinarz (1573-1637), a German Lutheran theologian and author. He was born in Naumburg and served as a pastor in various churches throughout Saxony. His most notable work was a commentary on the Book of Revelation, published in 1619.
In the 18th century, a member of the REINARZ family, Friedrich Reinarz (1720-1789), gained prominence as a military officer in the Prussian army. He fought in the Seven Years' War and eventually rose to the rank of Major General, earning several decorations for his service.
Over the centuries, variations of the spelling REINARZ have included Reinartz, Reinarz, Reiners, and Reinders. These variations can often be traced back to regional dialects and linguistic differences within Germany and neighboring areas where the name was present.
While the surname REINARZ may not be as widespread as some other German names, it has a rich history spanning several centuries and has been associated with individuals from various professions, including medicine, academia, theology, and the military.
Demographics
Ancestry and ethnicity for Reinarz
Among Census respondents with the surname Reinarz, the largest self-reported group is White at 90.1%. The next largest groups are Hispanic (4.1%) and Two or More Races (3.3%).
The bar chart below shows how Reinarz 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 Reinarz surname at the time of the 2020 Census, not any inherent property of the name itself.
- White90.1% · 109
- Hispanic or Latino4.1% · 5
- Two or more races3.3% · 4
- Asian and Pacific Islander2.5% · 3
Timeline
Historical Census data for Reinarz
Reinarz 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
#133,048
National surname rank
Recorded bearers 127
-9 bearers (-6.6%)
Per 100,000 0.04
Rank movement Down 14,812 places
2020
#141,309
National surname rank
Recorded bearers 121
-6 bearers (-4.7%)
Per 100,000 0.04
Rank movement Down 8,261 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #118,236 | 136 | 0.05 | First available Census row | First available Census row |
| 2010 | #133,048 | 127 | 0.04 | -9 bearers (-6.6%) | Down 14,812 places |
| 2020 | #141,309 | 121 | 0.04 | -6 bearers (-4.7%) | Down 8,261 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 Reinarz 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 | #133,048 | #141,309 | -6.2% |
| Count | 127 | 121 | -4.7% |
| Per 100K | 0.04 | 0.04 | 1.2% |
Between the 2010 and 2020 Census, the number of Reinarz bearers went from 127 to 121 (-4.7% change). The surname moved down 8,261 positions in the national ranking, going from #133,048 to #141,309.
FAQ
Reinarz surname: questions and answers
How many people in the U.S. have the surname Reinarz?
Name Census estimates that about 139 living Americans carry the surname Reinarz. Using the current population baseline, that works out to roughly 1 in 2,465,859 residents.
How common is Reinarz?
Reinarz ranks #141,309 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 121 people with the surname Reinarz. That is different from the site's living-bearer estimate (139), 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 Reinarz.
Has Reinarz become more or less common over time?
Between 2010 and 2020, the surname Reinarz went from 127 recorded bearers to 121. That is a decrease of 6 (-4.7%). In the national ranking it fell from #133,048 to #141,309.
What does the Census say about the background of Reinarz?
Among Census respondents with the surname Reinarz, the largest self-reported group is White at 90.1%. The next largest groups are Hispanic (4.1%) and Two or More Races (3.3%). 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 Reinarz in the 2020 Census, accounting for 90.1% (109 people in the source table).
What is the full ancestry breakdown?
Reinarz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (90.1%), Hispanic (4.1%), Two or More Races (3.3%). 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 Reinarz (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 Reinarz mean?
A variant spelling of the German surname "Reinarz" meaning "pure" or "sincere." 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 Reinarz (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 are called Reinarz?
If you just want to know how many Americans have the surname Reinarz, HowManyOfMe.org gives you the headline number in one glance.