2000
#3,320
National surname rank
Recorded bearers 9,880
First available Census row
Per 100,000 3.66
Uncommon Last name
Dupont
A French topographic surname referring to someone who lived near a bridge or derived from a place name.
According to the 2020 US Census Bureau surname tables, roughly 11,548 Americans carry the last name Dupont. That puts it at #3,463 in the national surname ranking, appearing at a frequency of 3.37 per 100,000 people (about 1 in 29,681 residents).
This page is the full Name Census profile for the Dupont 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 Dupont with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
12K
1 in 29,681
Census rank
#3,463
2020 decennial data
Per 100,000
3.4
Frequency rate
Recorded bearers
10K
uncommon in the US
Popularity narrative
The Census Bureau recorded 10,070 bearers of the surname Dupont in its 2020 decennial surname file. At a rate of 3.37 per 100,000 residents, it holds the 3463rd position in the national surname ranking.
Among Census respondents with the surname Dupont, the largest self-reported group is White at 79.1%. The next largest groups are Black (10.4%) and Hispanic (5.6%).
Origin
Meaning and origin of Dupont
The surname DuPont is of French origin and dates back to the Middle Ages. It is a locational name derived from the French words "du" meaning "of" and "pont" meaning "bridge." The name likely originated from one of the many places in France with the word "pont" in their names, such as Pontoise or Pontarlier.
One of the earliest recorded instances of the DuPont surname can be found in the Domesday Book of 1086, which was a comprehensive survey of landowners and properties in England commissioned by William the Conqueror. The name appears as "de Ponte," which was the Norman French version of the name.
In the 13th century, the DuPont name was associated with a noble family from the region of Normandy in northern France. This family owned lands and properties near the town of Pont-Audemer, and their name was often written as "de Pont" or "du Pont."
One of the earliest notable individuals with the DuPont surname was Guillaume du Pont, a French soldier and knight who fought in the Hundred Years' War between England and France in the mid-14th century. He was known for his bravery and military prowess on the battlefield.
In the 15th century, the DuPont family established themselves in the region of Champagne, where they became prominent landowners and winemakers. One of the most famous members of this branch of the family was Jacques DuPont (1460-1528), who was renowned for his expertise in viticulture and wine-making techniques.
During the Renaissance period, the DuPont name was also associated with several artists and intellectuals. One of the most notable figures was Pierre DuPont (1521-1589), a French sculptor and architect who worked on several important projects, including the renovation of the Louvre Palace in Paris.
In the 17th century, the DuPont family gained further prominence in France when one of its members, Samuel DuPont (1609-1679), became a successful merchant and financier. He amassed a considerable fortune through his business ventures and was instrumental in establishing the family's influence in the realm of finance and commerce.
Throughout history, the DuPont surname has been carried by many distinguished individuals across various fields, including politics, military, arts, and sciences. The name has also been associated with some of the most prominent families in France, who have played significant roles in shaping the country's history and culture.
Demographics
Ancestry and ethnicity for Dupont
Among Census respondents with the surname Dupont, the largest self-reported group is White at 79.1%. The next largest groups are Black (10.4%) and Hispanic (5.6%).
The bar chart below shows how Dupont 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 Dupont surname at the time of the 2020 Census, not any inherent property of the name itself.
- White79.1% · 7,969
- Black or African American10.4% · 1,043
- Hispanic or Latino5.6% · 567
- Two or more races3.5% · 348
- Asian and Pacific Islander1.1% · 110
- American Indian and Alaska Native0.3% · 33
Timeline
Historical Census data for Dupont
Dupont 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
#3,456
National surname rank
Recorded bearers 10,339
+459 bearers (+4.6%)
Per 100,000 3.50
Rank movement Down 136 places
2020
#3,463
National surname rank
Recorded bearers 10,070
-269 bearers (-2.6%)
Per 100,000 3.37
Rank movement Down 7 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #3,320 | 9,880 | 3.66 | First available Census row | First available Census row |
| 2010 | #3,456 | 10,339 | 3.50 | +459 bearers (+4.6%) | Down 136 places |
| 2020 | #3,463 | 10,070 | 3.37 | -269 bearers (-2.6%) | Down 7 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 Dupont 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 | #3,456 | #3,463 | -0.2% |
| Count | 10,339 | 10,070 | -2.6% |
| Per 100K | 3.50 | 3.37 | -3.7% |
Between the 2010 and 2020 Census, the number of Dupont bearers went from 10,339 to 10,070 (-2.6% change). The surname moved down 7 positions in the national ranking, going from #3,456 to #3,463.
FAQ
Dupont surname: questions and answers
How many people in the U.S. have the surname Dupont?
Name Census estimates that about 11,548 living Americans carry the surname Dupont. Using the current population baseline, that works out to roughly 1 in 29,681 residents.
How common is Dupont?
Dupont ranks #3,463 in the 2020 Census surname tables and is classified on this site as "Uncommon." The Census recorded the name at a frequency of 3.37 per 100,000 residents, which is about 3 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 10,070 people with the surname Dupont. That is different from the site's living-bearer estimate (11,548), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 3.37 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 3.37 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 3 of them to have the surname Dupont.
Has Dupont become more or less common over time?
Between 2010 and 2020, the surname Dupont went from 10,339 recorded bearers to 10,070. That is a decrease of 269 (-2.6%). In the national ranking it fell from #3,456 to #3,463.
What does the Census say about the background of Dupont?
Among Census respondents with the surname Dupont, the largest self-reported group is White at 79.1%. The next largest groups are Black (10.4%) and Hispanic (5.6%). 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 Dupont in the 2020 Census, accounting for 79.1% (7,969 people in the source table).
What is the full ancestry breakdown?
Dupont appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (79.1%), Black (10.4%), Hispanic (5.6%). 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 Dupont (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 Dupont mean?
A French topographic surname referring to someone who lived near a bridge or derived from a place name. 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 Dupont (3.37 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 share the surname Dupont?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.