2000
#4,980
National surname rank
Recorded bearers 6,472
First available Census row
Per 100,000 2.40
Rare Last name
Dumont
French topographic surname for someone who lived near a hill or mountain.
According to the 2020 US Census Bureau surname tables, roughly 7,361 Americans carry the last name Dumont. That puts it at #5,246 in the national surname ranking, appearing at a frequency of 2.15 per 100,000 people (about 1 in 46,564 residents).
This page is the full Name Census profile for the Dumont 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.
For British records, Name Census UK has a British surname profile for Dumont with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
7.4K
1 in 46,564
Census rank
#5,246
2020 decennial data
Per 100,000
2.1
Frequency rate
Recorded bearers
6.4K
rare in the US
Popularity narrative
The Census Bureau recorded 6,419 bearers of the surname Dumont in its 2020 decennial surname file. At a rate of 2.15 per 100,000 residents, it holds the 5246th position in the national surname ranking.
Among Census respondents with the surname Dumont, the largest self-reported group is White at 84.0%. The next largest groups are Hispanic (4.9%) and Black (4.7%).
Origin
Meaning and origin of Dumont
The surname DUMONT originates from France and can be traced back to the 12th century. It is derived from the Old French words "du" meaning "of" and "mont" meaning "hill" or "mountain". The name was initially given to those who lived near or on a hill or mountain.
The earliest recorded instances of the name DUMONT can be found in various medieval records and manuscripts from the regions of Normandy and Picardy in northern France. One notable example is the mention of a "Robert Dumont" in the Cartulaire de l'abbaye de Fécamp, a collection of charters from the Abbey of Fécamp, dating back to the late 11th century.
In the 13th century, the name DUMONT appeared in various legal documents and records, such as the Rôles des Échiquiers de Normandie, which were administrative records from the region of Normandy. This suggests that the name was well-established in northern France during this period.
The DUMONT name has also been associated with several notable individuals throughout history. One of the earliest was Pierre DUMONT (c. 1650-1715), a French Huguenot engraver and cartographer who was known for his detailed maps and illustrations. Another was Jean DUMONT (1667-1727), a French architect and engineer who designed several notable buildings in Paris and other parts of France.
In the 18th century, Jacques-François DUMONT (1701-1781) was a French philosopher and writer who was influential in the Enlightenment movement. He is known for his work "Le Philosophe sans prétention" (The Unassuming Philosopher).
During the 19th century, André DUMONT (1847-1923) was a Belgian geologist and paleontologist who made significant contributions to the study of fossils and stratigraphy. He is particularly renowned for his work on the geology of Belgium and the surrounding regions.
One of the more recent notable individuals with the surname DUMONT was Jacques DUMONT (1888-1967), a French artist and sculptor who was part of the Cubist movement. His works are displayed in several renowned museums around the world.
While the DUMONT name has its roots in France, it has since spread to other parts of the world, particularly regions with strong French influence or immigration. However, the historical records and accounts mentioned above provide valuable insights into the origin, evolution, and significance of this surname throughout the centuries.
Demographics
Ancestry and ethnicity for Dumont
Among Census respondents with the surname Dumont, the largest self-reported group is White at 84.0%. The next largest groups are Hispanic (4.9%) and Black (4.7%).
The bar chart below shows how Dumont 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 Dumont surname at the time of the 2020 Census, not any inherent property of the name itself.
- White84.0% · 5,393
- Hispanic or Latino4.9% · 313
- Black or African American4.7% · 301
- Two or more races3.8% · 245
- American Indian and Alaska Native1.9% · 123
- Asian and Pacific Islander0.7% · 44
Timeline
Historical Census data for Dumont
Dumont 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
#5,177
National surname rank
Recorded bearers 6,748
+276 bearers (+4.3%)
Per 100,000 2.29
Rank movement Down 197 places
2020
#5,246
National surname rank
Recorded bearers 6,419
-329 bearers (-4.9%)
Per 100,000 2.15
Rank movement Down 69 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #4,980 | 6,472 | 2.40 | First available Census row | First available Census row |
| 2010 | #5,177 | 6,748 | 2.29 | +276 bearers (+4.3%) | Down 197 places |
| 2020 | #5,246 | 6,419 | 2.15 | -329 bearers (-4.9%) | Down 69 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 Dumont 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 | #5,177 | #5,246 | -1.3% |
| Count | 6,748 | 6,419 | -4.9% |
| Per 100K | 2.29 | 2.15 | -6.2% |
Between the 2010 and 2020 Census, the number of Dumont bearers went from 6,748 to 6,419 (-4.9% change). The surname moved down 69 positions in the national ranking, going from #5,177 to #5,246.
FAQ
Dumont surname: questions and answers
How many people in the U.S. have the surname Dumont?
Name Census estimates that about 7,361 living Americans carry the surname Dumont. Using the current population baseline, that works out to roughly 1 in 46,564 residents.
How common is Dumont?
Dumont ranks #5,246 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 2.15 per 100,000 residents, which is about 2 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 6,419 people with the surname Dumont. That is different from the site's living-bearer estimate (7,361), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 2.15 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 2.15 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 2 of them to have the surname Dumont.
Has Dumont become more or less common over time?
Between 2010 and 2020, the surname Dumont went from 6,748 recorded bearers to 6,419. That is a decrease of 329 (-4.9%). In the national ranking it fell from #5,177 to #5,246.
What does the Census say about the background of Dumont?
Among Census respondents with the surname Dumont, the largest self-reported group is White at 84.0%. The next largest groups are Hispanic (4.9%) and Black (4.7%). 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 Dumont in the 2020 Census, accounting for 84.0% (5,393 people in the source table).
What is the full ancestry breakdown?
Dumont appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (84.0%), Hispanic (4.9%), Black (4.7%). 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 Dumont (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 Dumont mean?
French topographic surname for someone who lived near a hill or mountain. 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 Dumont (2.15 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 Dumont?
You can see how many Americans have the surname Dumont on our sister site HowManyOfMe.org — same data roots, lighter UI.