2000
#114,852
National surname rank
Recorded bearers 141
First available Census row
Per 100,000 0.05
Very Rare Last name
Dubert
An archaic spelling variation of the French surname Dubert or Dhubert.
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Dubert. 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 Dubert 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 Dubert 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 Dubert, the largest self-reported group is White at 84.1%. The next largest groups are Two or More Races (6.2%) and American Indian/Alaska Native (5.3%).
Origin
Meaning and origin of Dubert
The surname Dubert has its origins in France, tracing back to the Middle Ages around the 12th century. It is believed to be derived from the Old French words "du" meaning "of" and "bert" which was a common Germanic personal name derived from the words "bright" or "famous." This suggests that the name may have initially referred to someone who was from a place associated with a person named Bert or a variant of that name.
One of the earliest recorded instances of the name Dubert can be found in the Livre des Bourgeois de Valenciennes, a register of citizens in the city of Valenciennes in northern France, dating back to the late 13th century. This document includes several individuals with variations of the name, such as Willaumes Dubers and Jehans Dubiers.
The name also appears in various medieval records and manuscripts from different regions of France, indicating its widespread use during that time period. For example, a Jehans Dubert is mentioned in a cartulary (a collection of charters and deeds) from the Touraine region in the early 14th century.
One notable historical figure bearing the Dubert name was Jean Dubert (c. 1470-1542), a French jurist and legal scholar from the city of Issoudun. He was appointed as a counselor to the Parliament of Paris and later served as the king's advocate in the Grand Council.
Another individual of note was Louis Dubert (1564-1629), a French Jesuit priest and mathematician who made significant contributions to the field of optics and the study of refraction. He was born in Clermont-Ferrand and taught at various Jesuit colleges throughout his career.
In the 17th century, a member of the Dubert family, Jacques Dubert (1619-1688), served as a Protestant minister and theologian in the city of Nîmes. He was a prominent figure in the French Reformed Church and authored several theological works.
The name Dubert also has connections to various place names in France, such as the village of Dubert in the department of Ille-et-Vilaine, which may have been the origin of the surname for some families bearing that name.
Over the centuries, the spelling of the name has remained relatively consistent, with minor variations like Dubers, Dubiers, and Dubaire appearing in historical records. However, the core form of Dubert has endured as a surname in France and other parts of the world where French immigrants settled.
Demographics
Ancestry and ethnicity for Dubert
Among Census respondents with the surname Dubert, the largest self-reported group is White at 84.1%. The next largest groups are Two or More Races (6.2%) and American Indian/Alaska Native (5.3%).
The bar chart below shows how Dubert 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 Dubert surname at the time of the 2020 Census, not any inherent property of the name itself.
- White84.1% · 95
- Two or more races6.2% · 7
- American Indian and Alaska Native5.3% · 6
- Hispanic or Latino3.5% · 4
- Black or African American0.9% · 1
Timeline
Historical Census data for Dubert
Dubert 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
#151,532
National surname rank
Recorded bearers 108
-33 bearers (-23.4%)
Per 100,000 0.04
Rank movement Down 36,680 places
2020
#147,221
National surname rank
Recorded bearers 113
+5 bearers (+4.6%)
Per 100,000 0.04
Rank movement Up 4,311 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #114,852 | 141 | 0.05 | First available Census row | First available Census row |
| 2010 | #151,532 | 108 | 0.04 | -33 bearers (-23.4%) | Down 36,680 places |
| 2020 | #147,221 | 113 | 0.04 | +5 bearers (+4.6%) | Up 4,311 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 Dubert 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 | #151,532 | #147,221 | 2.8% |
| Count | 108 | 113 | 4.6% |
| Per 100K | 0.04 | 0.04 | -5.5% |
Between the 2010 and 2020 Census, the number of Dubert bearers went from 108 to 113 (+4.6% change). The surname moved up 4,311 positions in the national ranking, going from #151,532 to #147,221.
FAQ
Dubert surname: questions and answers
How many people in the U.S. have the surname Dubert?
Name Census estimates that about 130 living Americans carry the surname Dubert. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
How common is Dubert?
Dubert 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 Dubert. 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 Dubert.
Has Dubert become more or less common over time?
Between 2010 and 2020, the surname Dubert went from 108 recorded bearers to 113. That is an increase of 5 (+4.6%). In the national ranking it rose from #151,532 to #147,221.
What does the Census say about the background of Dubert?
Among Census respondents with the surname Dubert, the largest self-reported group is White at 84.1%. The next largest groups are Two or More Races (6.2%) and American Indian/Alaska Native (5.3%). 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 Dubert in the 2020 Census, accounting for 84.1% (95 people in the source table).
What is the full ancestry breakdown?
Dubert appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (84.1%), Two or More Races (6.2%), American Indian/Alaska Native (5.3%). 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 Dubert (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 Dubert mean?
An archaic spelling variation of the French surname Dubert or Dhubert. 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 Dubert (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 share the surname Dubert?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.