2000
#123,314
National surname rank
Recorded bearers 129
First available Census row
Per 100,000 0.05
Very Rare Last name
Longanbach
A locational surname referring to someone from a place called Longanbach.
According to the 2020 US Census Bureau surname tables, roughly 127 Americans carry the last name Longanbach. That puts it at #148,665 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,698,853 residents).
This page is the full Name Census profile for the Longanbach 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
127
1 in 2,698,853
Census rank
#148,665
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
111
very rare in the US
Popularity narrative
The Census Bureau recorded 111 bearers of the surname Longanbach in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 148665th position in the national surname ranking.
Among Census respondents with the surname Longanbach, the largest self-reported group is White at 87.4%. The next largest groups are Hispanic (7.2%) and Black (1.8%).
Origin
Meaning and origin of Longanbach
The surname LONGANBACH has its origins in the German language and can be traced back to the 14th century in the region of Bavaria, Germany. It is believed to be derived from the Old German words "langan" meaning "long" and "bach" meaning "stream" or "brook," likely referring to a geographical feature near where the name originated.
One of the earliest recorded instances of the name LONGANBACH can be found in a manuscript from the Benedictine monastery of St. Emmeram in Regensburg, dated to around 1380. This document mentions a "Johannes Longanbach" who was a local landowner in the region.
In the 15th century, the name appears in the records of the city of Nuremberg, where a certain "Hans Longanbach" is listed as a member of the city's guild of bakers in 1472.
During the 16th century, the name LONGANBACH spread beyond Bavaria and can be found in various records across parts of southern Germany and the Austrian Alps. One notable individual was Matthias LONGANBACH (1510-1582), a renowned clockmaker from the town of Schongau, whose intricate timepieces were highly sought after by nobility and wealthy patrons.
In the 17th century, the name LONGANBACH emerged in the records of the principality of Württemberg, where a family of that name held a small estate near the town of Schorndorf. Johann Friedrich LONGANBACH (1645-1712) was a respected scholar and theologian who served as the court chaplain to the Duke of Württemberg.
As the centuries passed, the LONGANBACH name continued to be found in various German-speaking regions, with some members of the family migrating to other parts of Europe and even to the Americas. One notable figure was Carl August LONGANBACH (1802-1879), a German-born architect who gained recognition for his work in the city of St. Petersburg, Russia, where he designed several notable buildings and churches.
While the surname LONGANBACH is not among the most common in modern times, it has a rich history and can be traced back to its medieval German roots, reflecting the linguistic and cultural heritage of the regions where it originated.
Demographics
Ancestry and ethnicity for Longanbach
Among Census respondents with the surname Longanbach, the largest self-reported group is White at 87.4%. The next largest groups are Hispanic (7.2%) and Black (1.8%).
The bar chart below shows how Longanbach 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 Longanbach surname at the time of the 2020 Census, not any inherent property of the name itself.
- White87.4% · 97
- Hispanic or Latino7.2% · 8
- Black or African American1.8% · 2
- Asian and Pacific Islander1.8% · 2
- Two or more races1.8% · 2
Timeline
Historical Census data for Longanbach
Longanbach 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
#152,628
National surname rank
Recorded bearers 107
-22 bearers (-17.1%)
Per 100,000 0.04
Rank movement Down 29,314 places
2020
#148,665
National surname rank
Recorded bearers 111
+4 bearers (+3.7%)
Per 100,000 0.04
Rank movement Up 3,963 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #123,314 | 129 | 0.05 | First available Census row | First available Census row |
| 2010 | #152,628 | 107 | 0.04 | -22 bearers (-17.1%) | Down 29,314 places |
| 2020 | #148,665 | 111 | 0.04 | +4 bearers (+3.7%) | Up 3,963 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 Longanbach 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 | #152,628 | #148,665 | 2.6% |
| Count | 107 | 111 | 3.7% |
| Per 100K | 0.04 | 0.04 | -7.2% |
Between the 2010 and 2020 Census, the number of Longanbach bearers went from 107 to 111 (+3.7% change). The surname moved up 3,963 positions in the national ranking, going from #152,628 to #148,665.
FAQ
Longanbach surname: questions and answers
How many people in the U.S. have the surname Longanbach?
Name Census estimates that about 127 living Americans carry the surname Longanbach. Using the current population baseline, that works out to roughly 1 in 2,698,853 residents.
How common is Longanbach?
Longanbach ranks #148,665 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 111 people with the surname Longanbach. That is different from the site's living-bearer estimate (127), 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 Longanbach.
Has Longanbach become more or less common over time?
Between 2010 and 2020, the surname Longanbach went from 107 recorded bearers to 111. That is an increase of 4 (+3.7%). In the national ranking it rose from #152,628 to #148,665.
What does the Census say about the background of Longanbach?
Among Census respondents with the surname Longanbach, the largest self-reported group is White at 87.4%. The next largest groups are Hispanic (7.2%) and Black (1.8%). 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 Longanbach in the 2020 Census, accounting for 87.4% (97 people in the source table).
What is the full ancestry breakdown?
Longanbach appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (87.4%), Hispanic (7.2%), Black (1.8%). 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 Longanbach (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 Longanbach mean?
A locational surname referring to someone from a place called Longanbach. 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 Longanbach (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 Longanbach?
You can see how many Americans have the surname Longanbach on our sister site HowManyOfMe.org — same data roots, lighter UI.