2000
#136,783
National surname rank
Recorded bearers 113
First available Census row
Per 100,000 0.04
Very Rare Last name
Crumback
A locative surname referring to someone who lived near a crooked or bent stream.
According to the 2020 US Census Bureau surname tables, roughly 136 Americans carry the last name Crumback. That puts it at #142,788 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,520,252 residents).
This page is the full Name Census profile for the Crumback 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
136
1 in 2,520,252
Census rank
#142,788
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
119
very rare in the US
Popularity narrative
The Census Bureau recorded 119 bearers of the surname Crumback in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 142788th position in the national surname ranking.
Among Census respondents with the surname Crumback, the largest self-reported group is White at 94.1%. The next largest groups are Hispanic (1.7%) and Asian/Pacific Islander (1.7%).
Origin
Meaning and origin of Crumback
The surname Crumback originated in Germany during the Middle Ages. It is derived from the Old German words "krum" meaning "crooked" or "bent" and "bach" meaning "stream" or "brook." This suggests that the name likely referred to someone who lived near a winding stream or river.
One of the earliest recorded instances of the name can be found in the town records of Cologne, Germany, where a Wilhelm Crumback was mentioned in 1362. In the 15th century, a Johannes Crumback was a respected merchant and landowner in the city of Nuremberg.
As the name spread across Germany, variations in spelling emerged, such as Krumbach, Krummbeck, and Krummbacher. These variants often reflected regional dialects and customs in different areas of the country.
In the 16th century, the Crumback name appeared in several historical documents in the region of Saxony. A notable figure was Hans Crumback, a Lutheran theologian and writer who was born in 1523 and died in 1590. His works on religious reform were influential during the Protestant Reformation.
Another noteworthy individual was Katharina Crumback, a German artist and engraver who lived from 1516 to 1576. She is known for her intricate woodcut illustrations that adorned books and manuscripts during the Renaissance period.
In the 17th century, the Crumback name spread to other parts of Europe as German immigrants settled in new lands. One such individual was Johann Crumback, who was born in 1645 and later became a prominent merchant and trader in the Dutch city of Amsterdam.
As the centuries passed, the Crumback surname continued to be carried by individuals across various fields and professions. For instance, in the 19th century, there was a German composer named Friedrich Crumback who lived from 1824 to 1891 and composed several operas and symphonic works.
Demographics
Ancestry and ethnicity for Crumback
Among Census respondents with the surname Crumback, the largest self-reported group is White at 94.1%. The next largest groups are Hispanic (1.7%) and Asian/Pacific Islander (1.7%).
The bar chart below shows how Crumback 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 Crumback surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.1% · 112
- Hispanic or Latino1.7% · 2
- Asian and Pacific Islander1.7% · 2
- Two or more races1.7% · 2
- Black or African American0.8% · 1
Timeline
Historical Census data for Crumback
Crumback 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
#136,449
National surname rank
Recorded bearers 123
+10 bearers (+8.8%)
Per 100,000 0.04
Rank movement Up 334 places
2020
#142,788
National surname rank
Recorded bearers 119
-4 bearers (-3.3%)
Per 100,000 0.04
Rank movement Down 6,339 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #136,783 | 113 | 0.04 | First available Census row | First available Census row |
| 2010 | #136,449 | 123 | 0.04 | +10 bearers (+8.8%) | Up 334 places |
| 2020 | #142,788 | 119 | 0.04 | -4 bearers (-3.3%) | Down 6,339 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 Crumback 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 | #136,449 | #142,788 | -4.6% |
| Count | 123 | 119 | -3.3% |
| Per 100K | 0.04 | 0.04 | -0.5% |
Between the 2010 and 2020 Census, the number of Crumback bearers went from 123 to 119 (-3.3% change). The surname moved down 6,339 positions in the national ranking, going from #136,449 to #142,788.
FAQ
Crumback surname: questions and answers
How many people in the U.S. have the surname Crumback?
Name Census estimates that about 136 living Americans carry the surname Crumback. Using the current population baseline, that works out to roughly 1 in 2,520,252 residents.
How common is Crumback?
Crumback ranks #142,788 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 119 people with the surname Crumback. That is different from the site's living-bearer estimate (136), 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 Crumback.
Has Crumback become more or less common over time?
Between 2010 and 2020, the surname Crumback went from 123 recorded bearers to 119. That is a decrease of 4 (-3.3%). In the national ranking it fell from #136,449 to #142,788.
What does the Census say about the background of Crumback?
Among Census respondents with the surname Crumback, the largest self-reported group is White at 94.1%. The next largest groups are Hispanic (1.7%) and Asian/Pacific Islander (1.7%). 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 Crumback in the 2020 Census, accounting for 94.1% (112 people in the source table).
What is the full ancestry breakdown?
Crumback appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.1%), Hispanic (1.7%), Asian/Pacific Islander (1.7%). 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 Crumback (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 Crumback mean?
A locative surname referring to someone who lived near a crooked or bent stream. 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 Crumback (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 people have the surname Crumback?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.