2000
#128,797
National surname rank
Recorded bearers 122
First available Census row
Per 100,000 0.05
Very Rare Last name
Alldaffer
An Americanized spelling of the German surname Altdoefer meaning "old villager."
According to the 2020 US Census Bureau surname tables, roughly 132 Americans carry the last name Alldaffer. That puts it at #145,757 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,596,624 residents).
This page is the full Name Census profile for the Alldaffer 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
132
1 in 2,596,624
Census rank
#145,757
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
115
very rare in the US
Popularity narrative
The Census Bureau recorded 115 bearers of the surname Alldaffer in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 145757th position in the national surname ranking.
Among Census respondents with the surname Alldaffer, the largest self-reported group is White at 80.9%. The next largest groups are Hispanic (11.3%) and Two or More Races (7.0%).
Origin
Meaning and origin of Alldaffer
The surname Alldaffer has its origins in Germany, where it first emerged in the 14th century as a variation of the name Altdorfer. The name likely derived from the place name Altdorf, referring to someone who hailed from or lived near one of the numerous towns called Altdorf across German-speaking regions.
One of the earliest recorded instances of the name appeared in the city records of Nuremberg in 1386, where a certain Hans Altdorfer was mentioned. This spelling variation was common during that era, with individuals often adopting surnames influenced by their place of origin or residence.
Over time, the name evolved into different spellings, including Alldorfer, Alltdorfer, and eventually Alldaffer. These variations can be traced through various historical records, such as church registers, tax rolls, and legal documents from the 15th and 16th centuries.
Notably, in the late 16th century, a renowned German painter and printmaker, Albrecht Altdorfer (c. 1480-1538), gained fame for his landscape paintings and religious works. His art is considered a precursor to the Renaissance in German art, and his influence extended well beyond his lifetime.
Another noteworthy bearer of the name was Johann Altdorfer (1563-1616), a German Lutheran theologian and philosopher who served as a professor at the University of Herborn. His scholarly works on theology and philosophy were highly regarded during his time.
In the 18th century, the Alldaffer family continued to make their mark, with Johann Georg Alldaffer (1717-1790) being a prominent German composer and organist. His compositions for organ and sacred works were well-received and performed across various churches in Germany.
As the name spread across Europe, it also found its way to other regions. One such example is Joseph Alldaffer (1830-1898), an Austrian-born American painter and lithographer who was active in the latter half of the 19th century. His works, which included landscapes and portraits, were exhibited in various galleries in the United States.
While the Alldaffer name may have evolved and dispersed over the centuries, its roots can be traced back to the German-speaking regions, where it first emerged as a place-based surname, reflecting the rich cultural and linguistic diversity of those areas.
Demographics
Ancestry and ethnicity for Alldaffer
Among Census respondents with the surname Alldaffer, the largest self-reported group is White at 80.9%. The next largest groups are Hispanic (11.3%) and Two or More Races (7.0%).
The bar chart below shows how Alldaffer 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 Alldaffer surname at the time of the 2020 Census, not any inherent property of the name itself.
- White80.9% · 93
- Hispanic or Latino11.3% · 13
- Two or more races7.0% · 8
- Black or African American0.9% · 1
Timeline
Historical Census data for Alldaffer
Alldaffer 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
#139,228
National surname rank
Recorded bearers 120
-2 bearers (-1.6%)
Per 100,000 0.04
Rank movement Down 10,431 places
2020
#145,757
National surname rank
Recorded bearers 115
-5 bearers (-4.2%)
Per 100,000 0.04
Rank movement Down 6,529 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #128,797 | 122 | 0.05 | First available Census row | First available Census row |
| 2010 | #139,228 | 120 | 0.04 | -2 bearers (-1.6%) | Down 10,431 places |
| 2020 | #145,757 | 115 | 0.04 | -5 bearers (-4.2%) | Down 6,529 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 Alldaffer 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 | #139,228 | #145,757 | -4.7% |
| Count | 120 | 115 | -4.2% |
| Per 100K | 0.04 | 0.04 | -3.8% |
Between the 2010 and 2020 Census, the number of Alldaffer bearers went from 120 to 115 (-4.2% change). The surname moved down 6,529 positions in the national ranking, going from #139,228 to #145,757.
FAQ
Alldaffer surname: questions and answers
How many people in the U.S. have the surname Alldaffer?
Name Census estimates that about 132 living Americans carry the surname Alldaffer. Using the current population baseline, that works out to roughly 1 in 2,596,624 residents.
How common is Alldaffer?
Alldaffer ranks #145,757 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 115 people with the surname Alldaffer. That is different from the site's living-bearer estimate (132), 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 Alldaffer.
Has Alldaffer become more or less common over time?
Between 2010 and 2020, the surname Alldaffer went from 120 recorded bearers to 115. That is a decrease of 5 (-4.2%). In the national ranking it fell from #139,228 to #145,757.
What does the Census say about the background of Alldaffer?
Among Census respondents with the surname Alldaffer, the largest self-reported group is White at 80.9%. The next largest groups are Hispanic (11.3%) and Two or More Races (7.0%). 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 Alldaffer in the 2020 Census, accounting for 80.9% (93 people in the source table).
What is the full ancestry breakdown?
Alldaffer appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (80.9%), Hispanic (11.3%), Two or More Races (7.0%). 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 Alldaffer (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 Alldaffer mean?
An Americanized spelling of the German surname Altdoefer meaning "old villager." 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 Alldaffer (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 common is the surname Alldaffer?
Find out how many people are called Alldaffer on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.