2000
#101,157
National surname rank
First available Census row
A German surname that may have originated from a nickname meaning "little rabbit" or "rabbit face".
According to the 2020 US Census Bureau surname tables, roughly 175 Americans carry the last name Hasenfratz. That puts it at #119,572 in the national surname ranking, appearing at a frequency of 0.05 per 100,000 people (about 1 in 1,958,596 residents).
This page is the full Name Census profile for the Hasenfratz 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
175
1 in 1,958,596
Census rank
#119,572
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
153
very rare in the US
Popularity narrative
The Census Bureau recorded 153 bearers of the surname Hasenfratz in its 2020 decennial surname file. At a rate of 0.05 per 100,000 residents, it holds the 119572nd position in the national surname ranking.
Among Census respondents with the surname Hasenfratz, the largest self-reported group is White at 90.2%. The next largest groups are Two or More Races (5.2%) and Hispanic (3.3%).
Origin
The surname Hasenfratz is believed to have originated in German-speaking regions of Europe, likely in the late medieval or early modern period. The name is derived from the German words "Hase," meaning "hare," and "Fratz," which can refer to a grimace, prank, or mischievous act. This suggests that the name may have been initially given as a descriptive nickname to someone with a mischievous or playful nature, or perhaps to someone associated with hunting hares.
One of the earliest recorded instances of the name can be found in the town records of Esslingen, Germany, where a Johann Hasenfratz is mentioned as a resident in the year 1487. Another notable early bearer of the name was Hans Hasenfratz, a German painter and illustrator who lived in the 16th century and was known for his intricate woodcuts depicting religious and allegorical scenes.
In the 17th century, the name appears in various church records and tax rolls across southern Germany and parts of Switzerland. For example, a Matthias Hasenfratz is listed as a landowner in the village of Steinbach, near Freiburg, in the year 1632. During this period, variations in spelling such as Hasenfratz, Haasenfraz, and Hasenfratz were common.
As the name spread across Europe, it also found its way into other regions and languages. In France, the name was sometimes adapted as Hazenfraz or Hasenfraz, reflecting the French pronunciation of the German original. One notable French bearer of the name was Jean-Éric Hazenfraz, a philosopher and writer who lived from 1738 to 1809 and authored several works on ethics and political theory.
Moving into the 19th century, the Hasenfratz name can be found in various historical records across Germany, Switzerland, and parts of eastern France. One notable figure was Johann Georg Hasenfratz, a German-born engineer and military officer who lived from 1786 to 1858 and served in the French army during the Napoleonic Wars.
Other individuals with the Hasenfratz surname throughout history include Johann Hasenfratz, a German painter and etcher active in the late 17th and early 18th centuries; Matthias Hasenfratz, a Swiss clockmaker and inventor who lived from 1735 to 1807; and Maria Hasenfratz, a German textile artist and weaver who was active in the early 20th century and known for her intricate tapestries.
Demographics
Among Census respondents with the surname Hasenfratz, the largest self-reported group is White at 90.2%. The next largest groups are Two or More Races (5.2%) and Hispanic (3.3%).
The bar chart below shows how Hasenfratz 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 Hasenfratz surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Hasenfratz 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.
2000
National surname rank
First available Census row
2010
National surname rank
+3 bearers (+1.8%)
2020
National surname rank
-15 bearers (-8.9%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #101,157 | 165 | 0.06 | First available Census row | First available Census row |
| 2010 | #106,096 | 168 | 0.06 | +3 bearers (+1.8%) | Down 4,939 places |
| 2020 | #119,572 | 153 | 0.05 | -15 bearers (-8.9%) | Down 13,476 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
How has the Hasenfratz surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #106,096 | #119,572 | -12.7% |
| Count | 168 | 153 | -8.9% |
| Per 100K | 0.06 | 0.05 | -14.7% |
Between the 2010 and 2020 Census, the number of Hasenfratz bearers went from 168 to 153 (-8.9% change). The surname moved down 13,476 positions in the national ranking, going from #106,096 to #119,572.
FAQ
Name Census estimates that about 175 living Americans carry the surname Hasenfratz. Using the current population baseline, that works out to roughly 1 in 1,958,596 residents.
Hasenfratz ranks #119,572 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.05 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 153 people with the surname Hasenfratz. That is different from the site's living-bearer estimate (175), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
It is the Census Bureau's normalized frequency measure. A rate of 0.05 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 Hasenfratz.
Between 2010 and 2020, the surname Hasenfratz went from 168 recorded bearers to 153. That is a decrease of 15 (-8.9%). In the national ranking it fell from #106,096 to #119,572.
Among Census respondents with the surname Hasenfratz, the largest self-reported group is White at 90.2%. The next largest groups are Two or More Races (5.2%) and Hispanic (3.3%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
White is the largest self-reported group for the surname Hasenfratz in the 2020 Census, accounting for 90.2% (138 people in the source table).
Hasenfratz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (90.2%), Two or More Races (5.2%), Hispanic (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.
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 Hasenfratz (2000, 2010, 2020).
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.
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.
A German surname that may have originated from a nickname meaning "little rabbit" or "rabbit face". The fuller origin note on this page goes into more detail.
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.
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 Hasenfratz (0.05 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.