2000
#941
National surname rank
Recorded bearers 34,032
First available Census row
Per 100,000 12.62
Uncommon Last name
Haas
A German and Dutch occupational surname referring to a maker of a type of lock or padlock.
According to the 2020 US Census Bureau surname tables, roughly 38,842 Americans carry the last name Haas. That puts it at #1,012 in the national surname ranking, appearing at a frequency of 11.33 per 100,000 people (about 1 in 8,824 residents).
This page is the full Name Census profile for the Haas 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.
For British records, Name Census UK has a British surname profile for Haas with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
39K
1 in 8,824
Census rank
#1,012
2020 decennial data
Per 100,000
11.3
Frequency rate
Recorded bearers
34K
uncommon in the US
Popularity narrative
The Census Bureau recorded 33,872 bearers of the surname Haas in its 2020 decennial surname file. At a rate of 11.33 per 100,000 residents, it holds the 1012th position in the national surname ranking.
Among Census respondents with the surname Haas, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (3.1%) and Two or More Races (2.8%).
Origin
Meaning and origin of Haas
The surname Haas has its origins in Germany, where it first appeared in the 12th century. The name is derived from the Middle High German word "hase," meaning "hare." It was likely originally a nickname or occupational name for someone who hunted or traded in hares.
One of the earliest recorded instances of the name can be found in the Codex Traditionum Wizenburgensium, a medieval cartulary from the Wissembourg Abbey in Alsace, France. The document, dating back to the 13th century, mentions a "Heinricus dictus Hase" (Henry called Hase).
In the 14th century, the name appeared in various forms, such as "Hase," "Hasse," and "Hasen," reflecting regional variations in spelling and pronunciation. One notable example is Johannes Haas, a German theologian and scholar who lived from 1518 to 1576.
The Haas name was also found in various place names throughout Germany, such as Haasenburg and Haasfleth. These place names may have influenced the spelling and pronunciation of the surname over time.
In the 16th century, the name gained prominence with the birth of Johann Matthäus Haas (1548-1608), a German composer and organist from Nuremberg. Another notable figure was Johann Haas (1636-1704), a German painter and engraver from Augsburg.
The 17th century saw the emergence of several notable individuals bearing the Haas surname. One such person was Johann Georg Haas (1637-1700), a German philosopher and theologian from Nuremberg. Another was Johann Adam Haas (1671-1742), a German architect and sculptor from Augsburg.
In the 18th century, the name continued to be prominent, with individuals like Johann Baptist Haas (1728-1797), a German composer and organist from Kirchberg am Walde, and Johann Christoph Haas (1734-1814), a German composer and organist from Kirchhausen.
Throughout history, the Haas surname has been borne by numerous individuals across various fields, including science, literature, and the arts. While this overview focuses on the surname's German origins, it's important to note that the name has since spread worldwide and may have taken on different meanings and associations in other cultures and regions.
Demographics
Ancestry and ethnicity for Haas
Among Census respondents with the surname Haas, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (3.1%) and Two or More Races (2.8%).
The bar chart below shows how Haas 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 Haas surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.5% · 31,333
- Hispanic or Latino3.1% · 1,058
- Two or more races2.8% · 941
- Asian and Pacific Islander0.8% · 273
- Black or African American0.4% · 144
- American Indian and Alaska Native0.4% · 123
Timeline
Historical Census data for Haas
Haas 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
#1,001
National surname rank
Recorded bearers 34,918
+886 bearers (+2.6%)
Per 100,000 11.84
Rank movement Down 60 places
2020
#1,012
National surname rank
Recorded bearers 33,872
-1,046 bearers (-3.0%)
Per 100,000 11.33
Rank movement Down 11 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #941 | 34,032 | 12.62 | First available Census row | First available Census row |
| 2010 | #1,001 | 34,918 | 11.84 | +886 bearers (+2.6%) | Down 60 places |
| 2020 | #1,012 | 33,872 | 11.33 | -1,046 bearers (-3.0%) | Down 11 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 Haas 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 | #1,001 | #1,012 | -1.1% |
| Count | 34,918 | 33,872 | -3.0% |
| Per 100K | 11.84 | 11.33 | -4.3% |
Between the 2010 and 2020 Census, the number of Haas bearers went from 34,918 to 33,872 (-3.0% change). The surname moved down 11 positions in the national ranking, going from #1,001 to #1,012.
Notable bearers
Famous people with the surname Haas
FAQ
Haas surname: questions and answers
How many people in the U.S. have the surname Haas?
Name Census estimates that about 38,842 living Americans carry the surname Haas. Using the current population baseline, that works out to roughly 1 in 8,824 residents.
How common is Haas?
Haas ranks #1,012 in the 2020 Census surname tables and is classified on this site as "Uncommon." The Census recorded the name at a frequency of 11.33 per 100,000 residents, which is about 11 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 33,872 people with the surname Haas. That is different from the site's living-bearer estimate (38,842), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 11.33 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 11.33 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 11 of them to have the surname Haas.
Has Haas become more or less common over time?
Between 2010 and 2020, the surname Haas went from 34,918 recorded bearers to 33,872. That is a decrease of 1,046 (-3.0%). In the national ranking it fell from #1,001 to #1,012.
What does the Census say about the background of Haas?
Among Census respondents with the surname Haas, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (3.1%) and Two or More Races (2.8%). 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 Haas in the 2020 Census, accounting for 92.5% (31,333 people in the source table).
What is the full ancestry breakdown?
Haas appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.5%), Hispanic (3.1%), Two or More Races (2.8%). 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 Haas (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 Haas mean?
A German and Dutch occupational surname referring to a maker of a type of lock or padlock. 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 Haas (11.33 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 common is the surname Haas?
See how common the surname Haas is on HowManyOfMe.org, our sister site built around that single question.