2000
#141,788
National surname rank
Recorded bearers 108
First available Census row
Per 100,000 0.04
Very Rare Last name
Dudum
A rare surname derived from the Latin word "dudum" meaning formerly or long ago.
According to the 2020 US Census Bureau surname tables, roughly 131 Americans carry the last name Dudum. That puts it at #146,495 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,616,445 residents).
This page is the full Name Census profile for the Dudum 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
131
1 in 2,616,445
Census rank
#146,495
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
114
very rare in the US
Popularity narrative
The Census Bureau recorded 114 bearers of the surname Dudum in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 146495th position in the national surname ranking.
Among Census respondents with the surname Dudum, the largest self-reported group is White at 86.8%. The next largest groups are Two or More Races (5.3%) and Hispanic (3.5%).
Origin
Meaning and origin of Dudum
The surname DUDUM has its origins in France, tracing back to the 12th century. It is believed to be derived from the Old French word "dudum," which means "formerly" or "long ago." This suggests that the name may have initially referred to someone who had lived in a particular place for a long time or was an established resident.
One of the earliest recorded instances of the surname DUDUM can be found in the 13th-century cartularies of the Abbey of Cluny, a renowned Benedictine monastery in Burgundy, France. These documents mention individuals with the name, indicating its presence in the region during that time.
In the 14th century, there are records of a notable figure named Jean DUDUM, a merchant from the city of Lyon. He was involved in trade with other parts of Europe and is mentioned in various commercial documents from that era.
The surname DUDUM also appears in the archives of the Duchy of Burgundy, which was a powerful state in medieval France. In the 15th century, a certain Pierre DUDUM served as a court official under the Dukes of Burgundy.
During the 16th century, a family of DUDUM resided in the town of Dijon, the capital of the historic Duchy of Burgundy. One member, Claude DUDUM (1520-1589), was a respected lawyer and author of several legal treatises.
Another notable bearer of the DUDUM surname was Jacques DUDUM (1612-1678), a French Catholic priest and theologian from the city of Reims. He was known for his writings on religious subjects and served as a canon in the local cathedral.
In the 18th century, a branch of the DUDUM family settled in the region of Normandy. One of their descendants, François DUDUM (1745-1821), was a successful merchant and landowner who played a role in the local community affairs.
The name DUDUM has also been associated with several places in France, such as the village of Dudum in the department of Sarthe, and the hamlet of Dudum in the department of Deux-Sèvres. These place names likely influenced the surname or vice versa, reflecting the historical connection between the name and specific locations.
Demographics
Ancestry and ethnicity for Dudum
Among Census respondents with the surname Dudum, the largest self-reported group is White at 86.8%. The next largest groups are Two or More Races (5.3%) and Hispanic (3.5%).
The bar chart below shows how Dudum 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 Dudum surname at the time of the 2020 Census, not any inherent property of the name itself.
- White86.8% · 99
- Two or more races5.3% · 6
- Hispanic or Latino3.5% · 4
- Asian and Pacific Islander1.8% · 2
- American Indian and Alaska Native1.8% · 2
- Black or African American0.9% · 1
Timeline
Historical Census data for Dudum
Dudum 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
#133,048
National surname rank
Recorded bearers 127
+19 bearers (+17.6%)
Per 100,000 0.04
Rank movement Up 8,740 places
2020
#146,495
National surname rank
Recorded bearers 114
-13 bearers (-10.2%)
Per 100,000 0.04
Rank movement Down 13,447 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #141,788 | 108 | 0.04 | First available Census row | First available Census row |
| 2010 | #133,048 | 127 | 0.04 | +19 bearers (+17.6%) | Up 8,740 places |
| 2020 | #146,495 | 114 | 0.04 | -13 bearers (-10.2%) | Down 13,447 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 Dudum 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 | #133,048 | #146,495 | -10.1% |
| Count | 127 | 114 | -10.2% |
| Per 100K | 0.04 | 0.04 | -4.6% |
Between the 2010 and 2020 Census, the number of Dudum bearers went from 127 to 114 (-10.2% change). The surname moved down 13,447 positions in the national ranking, going from #133,048 to #146,495.
FAQ
Dudum surname: questions and answers
How many people in the U.S. have the surname Dudum?
Name Census estimates that about 131 living Americans carry the surname Dudum. Using the current population baseline, that works out to roughly 1 in 2,616,445 residents.
How common is Dudum?
Dudum ranks #146,495 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 114 people with the surname Dudum. That is different from the site's living-bearer estimate (131), 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 Dudum.
Has Dudum become more or less common over time?
Between 2010 and 2020, the surname Dudum went from 127 recorded bearers to 114. That is a decrease of 13 (-10.2%). In the national ranking it fell from #133,048 to #146,495.
What does the Census say about the background of Dudum?
Among Census respondents with the surname Dudum, the largest self-reported group is White at 86.8%. The next largest groups are Two or More Races (5.3%) and Hispanic (3.5%). 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 Dudum in the 2020 Census, accounting for 86.8% (99 people in the source table).
What is the full ancestry breakdown?
Dudum appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (86.8%), Two or More Races (5.3%), Hispanic (3.5%). 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 Dudum (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 Dudum mean?
A rare surname derived from the Latin word "dudum" meaning formerly or long ago. 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 Dudum (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 last name Dudum?
See how many Americans have the surname Dudum on HowManyOfMe.org, our sister site built around that single question.