2000
#144,908
National surname rank
Recorded bearers 105
First available Census row
Per 100,000 0.04
Very Rare Last name
Hainz
A variant spelling of the German surname Heinz, likely derived from a diminutive form of Heinrich.
According to the 2020 US Census Bureau surname tables, roughly 123 Americans carry the last name Hainz. That puts it at #151,639 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,786,621 residents).
This page is the full Name Census profile for the Hainz 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
123
1 in 2,786,621
Census rank
#151,639
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
107
very rare in the US
Popularity narrative
The Census Bureau recorded 107 bearers of the surname Hainz in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 151639th position in the national surname ranking.
Among Census respondents with the surname Hainz, the largest self-reported group is White at 90.7%. The next largest groups are Hispanic (5.6%) and Black (1.9%).
Origin
Meaning and origin of Hainz
The surname HAINZ has its origins in German-speaking regions of Europe, particularly in what is now modern-day Germany, Austria, and Switzerland. It likely emerged during the Middle Ages, around the 12th or 13th century.
The name HAINZ is thought to be derived from the Germanic personal name Hagen or Hagen, which itself originated from the Old High German word "hagan," meaning "hawthorn" or "hedge." This suggests that the earliest bearers of the surname may have lived near a hawthorn hedge or resided in an area known for its abundance of hawthorn bushes.
Historical records from the 13th century mention individuals with the surname HAINZ, though the spelling at the time varied, with variations such as "Haynz," "Hainez," and "Haintz" appearing in various documents. One of the earliest known instances of the name appears in the Codex Diplomatus, a collection of medieval charters and documents from the region now known as Baden-Württemberg, Germany.
In the 14th century, the surname HAINZ was found in various regions, including the town of Nürnberg (Nuremberg) in Bavaria, where a certain Hans HAINZ was recorded as a prominent merchant and member of the city council in the late 1300s.
Throughout the centuries, several notable individuals have borne the HAINZ surname. One example is the German composer and organist Johann Michael HAINZ (1702-1783), who was a renowned musician in his time and served as the court organist for the Prince-Bishop of Würzburg in Bavaria.
Another notable bearer of the HAINZ name was the Austrian painter and engraver Joseph HAINZ (1780-1856), whose works are featured in several museums across Europe, including the Albertina in Vienna.
In the 19th century, the German philosopher and writer Wilhelm HAINZ (1834-1900) gained recognition for his writings on ethics and philosophy of law.
The surname HAINZ also appears in historical records from Switzerland, with one notable figure being the Swiss politician and diplomat August HAINZ (1871-1949), who served as the President of the Swiss Council of States (the upper house of the Swiss parliament) from 1926 to 1927.
Overall, the surname HAINZ has a rich history spanning several centuries and can be traced back to its Germanic roots, with various spellings and variations arising in different regions across Central Europe.
Demographics
Ancestry and ethnicity for Hainz
Among Census respondents with the surname Hainz, the largest self-reported group is White at 90.7%. The next largest groups are Hispanic (5.6%) and Black (1.9%).
The bar chart below shows how Hainz 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 Hainz surname at the time of the 2020 Census, not any inherent property of the name itself.
- White90.7% · 97
- Hispanic or Latino5.6% · 6
- Black or African American1.9% · 2
- Asian and Pacific Islander0.9% · 1
- Two or more races0.9% · 1
Timeline
Historical Census data for Hainz
Hainz 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
#153,769
National surname rank
Recorded bearers 106
+1 bearers (+1.0%)
Per 100,000 0.04
Rank movement Down 8,861 places
2020
#151,639
National surname rank
Recorded bearers 107
+1 bearers (+0.9%)
Per 100,000 0.04
Rank movement Up 2,130 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #144,908 | 105 | 0.04 | First available Census row | First available Census row |
| 2010 | #153,769 | 106 | 0.04 | +1 bearers (+1.0%) | Down 8,861 places |
| 2020 | #151,639 | 107 | 0.04 | +1 bearers (+0.9%) | Up 2,130 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 Hainz 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 | #153,769 | #151,639 | 1.4% |
| Count | 106 | 107 | 0.9% |
| Per 100K | 0.04 | 0.04 | -10.5% |
Between the 2010 and 2020 Census, the number of Hainz bearers went from 106 to 107 (+0.9% change). The surname moved up 2,130 positions in the national ranking, going from #153,769 to #151,639.
FAQ
Hainz surname: questions and answers
How many people in the U.S. have the surname Hainz?
Name Census estimates that about 123 living Americans carry the surname Hainz. Using the current population baseline, that works out to roughly 1 in 2,786,621 residents.
How common is Hainz?
Hainz ranks #151,639 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 107 people with the surname Hainz. That is different from the site's living-bearer estimate (123), 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 Hainz.
Has Hainz become more or less common over time?
Between 2010 and 2020, the surname Hainz went from 106 recorded bearers to 107. That is an increase of 1 (+0.9%). In the national ranking it rose from #153,769 to #151,639.
What does the Census say about the background of Hainz?
Among Census respondents with the surname Hainz, the largest self-reported group is White at 90.7%. The next largest groups are Hispanic (5.6%) and Black (1.9%). 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 Hainz in the 2020 Census, accounting for 90.7% (97 people in the source table).
What is the full ancestry breakdown?
Hainz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (90.7%), Hispanic (5.6%), Black (1.9%). 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 Hainz (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 Hainz mean?
A variant spelling of the German surname Heinz, likely derived from a diminutive form of Heinrich. 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 Hainz (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 surname Hainz?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.