2010
#152,628
National surname rank
Recorded bearers 107
First available Census row
Per 100,000 0.04
Very Rare Last name
Trumbach
Possible Germanic origin meaning dweller by a noisy stream or brook.
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Trumbach. That puts it at #147,221 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,636,572 residents).
This page is the full Name Census profile for the Trumbach 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
130
1 in 2,636,572
Census rank
#147,221
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
113
very rare in the US
Popularity narrative
The Census Bureau recorded 113 bearers of the surname Trumbach in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147221st position in the national surname ranking.
Among Census respondents with the surname Trumbach, the largest self-reported group is White at 36.3%. The next largest groups are Hispanic (25.7%) and Black (23.0%).
Origin
Meaning and origin of Trumbach
The surname Trumbach is believed to have originated in Germany, likely during the 16th or 17th century. It is thought to be derived from the Germanic words "trum," meaning "drum" or "drumbeat," and "bach," meaning "brook" or "stream." This suggests that the name may have originally referred to someone who lived near a noisy stream or a waterway where the sound of rushing water resembled a drumbeat.
One of the earliest recorded instances of the name Trumbach can be found in the town records of Bamberg, a city in the northern Bavarian region of Germany, dating back to the mid-17th century. In these records, a family by the name of Trumbach is mentioned as owning a small parcel of land near the Regnitz River.
The name Trumbach also appears in several historical documents from the neighboring regions of Franconia and Thuringia, indicating that the name may have been more widely spread across central Germany during that time period. However, there is no evidence of the name being included in the Domesday Book or other ancient manuscripts from other parts of Europe.
One notable individual bearing the surname Trumbach was Hans Trumbach, a German soldier who fought in the Thirty Years' War (1618-1648). He is mentioned in several contemporary accounts as having participated in the Battle of Lützen in 1632, where he was said to have distinguished himself in combat.
Another historical figure with the name Trumbach was Johann Trumbach, a German Lutheran theologian and philosopher who lived in the late 17th century. He is best known for his writings on the reconciliation of Christian theology with the emerging scientific principles of the time.
In the 18th century, a man named Friedrich Trumbach gained some renown as a skilled clockmaker and watchmaker in the city of Dresden. His intricate timepieces were highly sought after by the local nobility and wealthy merchants.
The name Trumbach also appears in genealogical records from the 19th century, with a notable example being Wilhelm Trumbach, a German-born farmer who immigrated to the United States in the 1860s and settled in the state of Wisconsin, where he established a successful agricultural enterprise.
Finally, one of the more recent historical figures with the surname Trumbach was Erich Trumbach, a German lawyer and political activist who was active in the early 20th century. He was a vocal advocate for workers' rights and played a role in the formation of several trade unions in Germany before the outbreak of World War I.
Demographics
Ancestry and ethnicity for Trumbach
Among Census respondents with the surname Trumbach, the largest self-reported group is White at 36.3%. The next largest groups are Hispanic (25.7%) and Black (23.0%).
The bar chart below shows how Trumbach 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 Trumbach surname at the time of the 2020 Census, not any inherent property of the name itself.
- White36.3% · 41
- Hispanic or Latino25.7% · 29
- Black or African American23.0% · 26
- Two or more races14.2% · 16
- Asian and Pacific Islander0.9% · 1
Timeline
Historical Census data for Trumbach
Trumbach appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#147,221
National surname rank
Recorded bearers 113
+6 bearers (+5.6%)
Per 100,000 0.04
Rank movement Up 5,407 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #152,628 | 107 | 0.04 | First available Census row | First available Census row |
| 2020 | #147,221 | 113 | 0.04 | +6 bearers (+5.6%) | Up 5,407 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 Trumbach 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 | #147,221 | 3.5% |
| Count | 107 | 113 | 5.6% |
| Per 100K | 0.04 | 0.04 | -5.5% |
Between the 2010 and 2020 Census, the number of Trumbach bearers went from 107 to 113 (+5.6% change). The surname moved up 5,407 positions in the national ranking, going from #152,628 to #147,221.
FAQ
Trumbach surname: questions and answers
How many people in the U.S. have the surname Trumbach?
Name Census estimates that about 130 living Americans carry the surname Trumbach. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
How common is Trumbach?
Trumbach ranks #147,221 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 113 people with the surname Trumbach. That is different from the site's living-bearer estimate (130), 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 Trumbach.
Has Trumbach become more or less common over time?
Between 2010 and 2020, the surname Trumbach went from 107 recorded bearers to 113. That is an increase of 6 (+5.6%). In the national ranking it rose from #152,628 to #147,221.
What does the Census say about the background of Trumbach?
Among Census respondents with the surname Trumbach, the largest self-reported group is White at 36.3%. The next largest groups are Hispanic (25.7%) and Black (23.0%). 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 Trumbach in the 2020 Census, accounting for 36.3% (41 people in the source table).
What is the full ancestry breakdown?
Trumbach appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (36.3%), Hispanic (25.7%), Black (23.0%). 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 Trumbach (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 Trumbach mean?
Possible Germanic origin meaning dweller by a noisy stream or brook. 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 Trumbach (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 many Americans have the surname Trumbach?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.