2000
#144,908
National surname rank
Recorded bearers 105
First available Census row
Per 100,000 0.04
Very Rare Last name
Debiasse
A French surname derived from a nickname for someone with a pale complexion.
According to the 2020 US Census Bureau surname tables, roughly 138 Americans carry the last name Debiasse. That puts it at #142,049 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,483,727 residents).
This page is the full Name Census profile for the Debiasse 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
138
1 in 2,483,727
Census rank
#142,049
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
120
very rare in the US
Popularity narrative
The Census Bureau recorded 120 bearers of the surname Debiasse in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 142049th position in the national surname ranking.
Among Census respondents with the surname Debiasse, the largest self-reported group is White at 95.8%. The next largest groups are Hispanic (3.3%) and American Indian/Alaska Native (0.8%).
Origin
Meaning and origin of Debiasse
The surname DEBIASSE originated in France during the medieval period. It is believed to have derived from the Old French word "biasse," which referred to a type of coarse woolen fabric or blanket. The name likely identified someone who worked with this material, such as a weaver or merchant.
The earliest recorded instances of the DEBIASSE name can be traced back to the regions of Normandy and Brittany in northern France. Historical records from the 13th and 14th centuries mention individuals bearing variations of the name, including Debiasse, Debiace, and Debiache.
One notable historical reference to the DEBIASSE name can be found in the Cartulary of Montebourg Abbey, a medieval manuscript from Normandy dating back to the 12th century. The document mentions a certain Raoul Debiasse, who was a landowner in the region.
In the 15th century, a French nobleman named Jean DEBIASSE gained prominence as a military commander during the Hundred Years' War between France and England. He served under the banner of Joan of Arc and participated in the famous siege of Orléans in 1429.
Another notable figure with the DEBIASSE surname was Pierre DEBIASSE (1543-1612), a Renaissance-era French poet and playwright. His works included lyrical poetry and several comedic plays that were performed in Paris during his lifetime.
In the 17th century, a merchant named Jacques DEBIASSE (1624-1697) made a name for himself in the textile trade, establishing a successful business exporting French fabrics to other parts of Europe.
During the 18th century, the DEBIASSE name appeared in various records from the regions of Normandy and Brittany, often associated with rural villages and small towns. One example is the village of Biasse, located in the department of Calvados, which likely derived its name from the same root as the surname.
Throughout the centuries, the DEBIASSE surname has also been found in historical records from other parts of France, as well as in neighboring countries like Belgium and Switzerland, suggesting that individuals bearing this name may have migrated or established branches of the family beyond the original regions of origin.
Demographics
Ancestry and ethnicity for Debiasse
Among Census respondents with the surname Debiasse, the largest self-reported group is White at 95.8%. The next largest groups are Hispanic (3.3%) and American Indian/Alaska Native (0.8%).
The bar chart below shows how Debiasse 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 Debiasse surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.8% · 115
- Hispanic or Latino3.3% · 4
- American Indian and Alaska Native0.8% · 1
Timeline
Historical Census data for Debiasse
Debiasse 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
#145,220
National surname rank
Recorded bearers 114
+9 bearers (+8.6%)
Per 100,000 0.04
Rank movement Down 312 places
2020
#142,049
National surname rank
Recorded bearers 120
+6 bearers (+5.3%)
Per 100,000 0.04
Rank movement Up 3,171 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #144,908 | 105 | 0.04 | First available Census row | First available Census row |
| 2010 | #145,220 | 114 | 0.04 | +9 bearers (+8.6%) | Down 312 places |
| 2020 | #142,049 | 120 | 0.04 | +6 bearers (+5.3%) | Up 3,171 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 Debiasse 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 | #145,220 | #142,049 | 2.2% |
| Count | 114 | 120 | 5.3% |
| Per 100K | 0.04 | 0.04 | 0.4% |
Between the 2010 and 2020 Census, the number of Debiasse bearers went from 114 to 120 (+5.3% change). The surname moved up 3,171 positions in the national ranking, going from #145,220 to #142,049.
FAQ
Debiasse surname: questions and answers
How many people in the U.S. have the surname Debiasse?
Name Census estimates that about 138 living Americans carry the surname Debiasse. Using the current population baseline, that works out to roughly 1 in 2,483,727 residents.
How common is Debiasse?
Debiasse ranks #142,049 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 120 people with the surname Debiasse. That is different from the site's living-bearer estimate (138), 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 Debiasse.
Has Debiasse become more or less common over time?
Between 2010 and 2020, the surname Debiasse went from 114 recorded bearers to 120. That is an increase of 6 (+5.3%). In the national ranking it rose from #145,220 to #142,049.
What does the Census say about the background of Debiasse?
Among Census respondents with the surname Debiasse, the largest self-reported group is White at 95.8%. The next largest groups are Hispanic (3.3%) and American Indian/Alaska Native (0.8%). 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 Debiasse in the 2020 Census, accounting for 95.8% (115 people in the source table).
What is the full ancestry breakdown?
Debiasse appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.8%), Hispanic (3.3%), American Indian/Alaska Native (0.8%). 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 Debiasse (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 Debiasse mean?
A French surname derived from a nickname for someone with a pale complexion. 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 Debiasse (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 Debiasse?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.