2000
#138,741
National surname rank
Recorded bearers 111
First available Census row
Per 100,000 0.04
Very Rare Last name
Dassing
A locational surname originating in Bavaria, Germany.
According to the 2020 US Census Bureau surname tables, roughly 134 Americans carry the last name Dassing. That puts it at #144,270 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,557,868 residents).
This page is the full Name Census profile for the Dassing 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
134
1 in 2,557,868
Census rank
#144,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
117
very rare in the US
Popularity narrative
The Census Bureau recorded 117 bearers of the surname Dassing in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 144270th position in the national surname ranking.
Among Census respondents with the surname Dassing, the largest self-reported group is White at 97.4%. The next largest groups are Hispanic (0.9%) and American Indian/Alaska Native (0.9%).
Origin
Meaning and origin of Dassing
The surname "DASSING" originates from Germany, specifically from the region of Bavaria. It is believed to have emerged during the medieval period, around the 12th or 13th century. The name is derived from the Old German word "dassing," which means "a small settlement or hamlet."
The earliest known historical references to the surname DASSING can be found in various medieval records and documents from Bavaria. One notable mention is in the "Codex Diplomaticus Bavaricus," a collection of historical documents from the Duchy of Bavaria, where the name appears in a record dated 1294.
The name DASSING is also closely associated with the town of Dassing, located in the district of Aichach-Friedberg in Bavaria. This town likely served as the origin for the surname, as it was a common practice for people to adopt the name of their place of residence or birth.
One of the earliest recorded individuals with the surname DASSING was Johann DASSING, born in 1435 in the town of Dassing. He was a prominent figure in the local community and served as a magistrate during the late 15th century.
Another notable bearer of the name was Ulrich DASSING, born in 1510 in the same town. He was a scholar and theologian who played a significant role in the Protestant Reformation in Bavaria.
In the 17th century, the DASSING family gained prominence in the region, with several members holding influential positions in local government and the clergy. One such individual was Georg DASSING (1624-1691), who served as the mayor of Dassing for over two decades.
During the 18th century, the surname DASSING began to spread beyond Bavaria, as members of the family migrated to other parts of Germany and Europe. One prominent figure from this period was Johann Michael DASSING (1712-1783), a renowned mathematician and astronomer who made significant contributions to the field of celestial mechanics.
In the 19th century, the DASSING family continued to produce notable figures, such as Wilhelm DASSING (1822-1897), a celebrated painter and artist whose works are still displayed in various museums across Germany.
Throughout its history, the surname DASSING has been associated with various professions, including scholars, artists, politicians, and religious leaders, reflecting the diverse backgrounds and achievements of its bearers.
Demographics
Ancestry and ethnicity for Dassing
Among Census respondents with the surname Dassing, the largest self-reported group is White at 97.4%. The next largest groups are Hispanic (0.9%) and American Indian/Alaska Native (0.9%).
The bar chart below shows how Dassing 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 Dassing surname at the time of the 2020 Census, not any inherent property of the name itself.
- White97.4% · 114
- Hispanic or Latino0.9% · 1
- American Indian and Alaska Native0.9% · 1
- Two or more races0.9% · 1
Timeline
Historical Census data for Dassing
Dassing 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
#137,327
National surname rank
Recorded bearers 122
+11 bearers (+9.9%)
Per 100,000 0.04
Rank movement Up 1,414 places
2020
#144,270
National surname rank
Recorded bearers 117
-5 bearers (-4.1%)
Per 100,000 0.04
Rank movement Down 6,943 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #138,741 | 111 | 0.04 | First available Census row | First available Census row |
| 2010 | #137,327 | 122 | 0.04 | +11 bearers (+9.9%) | Up 1,414 places |
| 2020 | #144,270 | 117 | 0.04 | -5 bearers (-4.1%) | Down 6,943 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 Dassing 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 | #137,327 | #144,270 | -5.1% |
| Count | 122 | 117 | -4.1% |
| Per 100K | 0.04 | 0.04 | -2.1% |
Between the 2010 and 2020 Census, the number of Dassing bearers went from 122 to 117 (-4.1% change). The surname moved down 6,943 positions in the national ranking, going from #137,327 to #144,270.
FAQ
Dassing surname: questions and answers
How many people in the U.S. have the surname Dassing?
Name Census estimates that about 134 living Americans carry the surname Dassing. Using the current population baseline, that works out to roughly 1 in 2,557,868 residents.
How common is Dassing?
Dassing ranks #144,270 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 117 people with the surname Dassing. That is different from the site's living-bearer estimate (134), 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 Dassing.
Has Dassing become more or less common over time?
Between 2010 and 2020, the surname Dassing went from 122 recorded bearers to 117. That is a decrease of 5 (-4.1%). In the national ranking it fell from #137,327 to #144,270.
What does the Census say about the background of Dassing?
Among Census respondents with the surname Dassing, the largest self-reported group is White at 97.4%. The next largest groups are Hispanic (0.9%) and American Indian/Alaska Native (0.9%). 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 Dassing in the 2020 Census, accounting for 97.4% (114 people in the source table).
What is the full ancestry breakdown?
Dassing appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (97.4%), Hispanic (0.9%), American Indian/Alaska Native (0.9%). 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.
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 Dassing (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 Dassing mean?
A locational surname originating in Bavaria, Germany. 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 Dassing (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 are called Dassing?
See how many people have the surname Dassing on HowManyOfMe.org, our sister site built around that single question.