2000
#82,691
National surname rank
First available Census row
A Swiss German occupational surname derived from the Middle High German words for "ash" and "stream."
According to the 2020 US Census Bureau surname tables, roughly 300 Americans carry the last name Aeschbacher. That puts it at #78,629 in the national surname ranking, appearing at a frequency of 0.09 per 100,000 people (about 1 in 1,142,514 residents).
This page is the full Name Census profile for the Aeschbacher 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
300
1 in 1,142,514
Census rank
#78,629
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
262
very rare in the US
Popularity narrative
The Census Bureau recorded 262 bearers of the surname Aeschbacher in its 2020 decennial surname file. At a rate of 0.09 per 100,000 residents, it holds the 78629th position in the national surname ranking.
Among Census respondents with the surname Aeschbacher, the largest self-reported group is White at 79.0%. The next largest groups are Two or More Races (9.9%) and Hispanic (6.9%).
Origin
The surname Aeschbacher is of German and Swiss origin, with its roots traceable back to the Middle Ages. The name likely originated in the 14th or 15th century in the regions of southern Germany and northern Switzerland, particularly around the areas of Baden and Zurich.
Aeschbacher is derived from the Old German words "asch" and "bach," which translate to "ash tree" and "brook" or "stream," respectively. This suggests that the name may have initially referred to someone who lived near an ash tree or a stream, or perhaps a combination of both features.
One of the earliest recorded instances of the Aeschbacher name can be found in the historical records of the town of Frauenfeld, in the canton of Thurgau, Switzerland, dating back to the late 15th century. In these documents, a certain Hans Aeschbacher is mentioned as a landowner and respected citizen of the town.
Another notable bearer of the Aeschbacher name was Johann Aeschbacher (1564-1638), a Swiss theologian and reformer who played a significant role in the Protestant Reformation in Switzerland. He was born in Zurich and served as a pastor in various churches throughout the region.
In the 18th century, a prominent Aeschbacher family lived in the town of Aarau, in the canton of Aargau, Switzerland. One member of this family, Jakob Aeschbacher (1725-1798), was a successful merchant and landowner, and his descendants continued to be influential in the region for several generations.
Across the border in Germany, the Aeschbacher name can be traced back to the town of Freiburg im Breisgau, where a family of that name is mentioned in records dating back to the 16th century. One notable member of this family was Johann Georg Aeschbacher (1778-1844), a renowned painter and engraver who specialized in landscapes and portraits.
In more recent times, the Aeschbacher name has spread to other parts of Europe and the world, with notable individuals including the Swiss author and artist Albert Aeschbacher (1899-1985), and the German-born American physicist Joachim Aeschbacher (1924-2003), who made significant contributions to the field of nuclear physics.
While the Aeschbacher name may not be as widely known as some other surnames, its long and rich history spans several centuries and has produced individuals who have left their mark in various fields, from religion and art to commerce and science.
Demographics
Among Census respondents with the surname Aeschbacher, the largest self-reported group is White at 79.0%. The next largest groups are Two or More Races (9.9%) and Hispanic (6.9%).
The bar chart below shows how Aeschbacher 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 Aeschbacher surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Aeschbacher 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
-2 bearers (-0.9%)
2020
National surname rank
+52 bearers (+24.8%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #82,691 | 212 | 0.08 | First available Census row | First available Census row |
| 2010 | #88,336 | 210 | 0.07 | -2 bearers (-0.9%) | Down 5,645 places |
| 2020 | #78,629 | 262 | 0.09 | +52 bearers (+24.8%) | Up 9,707 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 Aeschbacher 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 | #88,336 | #78,629 | 11.0% |
| Count | 210 | 262 | 24.8% |
| Per 100K | 0.07 | 0.09 | 25.2% |
Between the 2010 and 2020 Census, the number of Aeschbacher bearers went from 210 to 262 (+24.8% change). The surname moved up 9,707 positions in the national ranking, going from #88,336 to #78,629.
FAQ
Name Census estimates that about 300 living Americans carry the surname Aeschbacher. Using the current population baseline, that works out to roughly 1 in 1,142,514 residents.
Aeschbacher ranks #78,629 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.09 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 262 people with the surname Aeschbacher. That is different from the site's living-bearer estimate (300), 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 0.09 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 Aeschbacher.
Between 2010 and 2020, the surname Aeschbacher went from 210 recorded bearers to 262. That is an increase of 52 (+24.8%). In the national ranking it rose from #88,336 to #78,629.
Among Census respondents with the surname Aeschbacher, the largest self-reported group is White at 79.0%. The next largest groups are Two or More Races (9.9%) and Hispanic (6.9%). 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 Aeschbacher in the 2020 Census, accounting for 79.0% (207 people in the source table).
Aeschbacher appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (79.0%), Two or More Races (9.9%), Hispanic (6.9%). 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.
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 Aeschbacher (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 Swiss German occupational surname derived from the Middle High German words for "ash" and "stream." 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 Aeschbacher (0.09 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
See how many people are called Aeschbacher on HowManyOfMe.org, our sister site built around that single question.