2010
#142,108
National surname rank
Recorded bearers 117
First available Census row
Per 100,000 0.04
Very Rare Last name
Demaske
An occupational surname likely referring to someone who made masks or armor.
According to the 2020 US Census Bureau surname tables, roughly 125 Americans carry the last name Demaske. That puts it at #150,205 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,742,035 residents).
This page is the full Name Census profile for the Demaske 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
125
1 in 2,742,035
Census rank
#150,205
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
109
very rare in the US
Popularity narrative
The Census Bureau recorded 109 bearers of the surname Demaske in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 150205th position in the national surname ranking.
Among Census respondents with the surname Demaske, the largest self-reported group is White at 93.6%. The next largest groups are Two or More Races (2.8%) and American Indian/Alaska Native (1.8%).
Origin
Meaning and origin of Demaske
The surname DEMASKE originates from France, specifically the northern regions of Normandy and Picardy. It is believed to have emerged during the late medieval period, around the 13th or 14th century. The name is thought to be derived from the Old French word "demas," which means "mask" or "disguise."
One of the earliest recorded instances of the name can be found in the tax records of Normandy from the year 1347, where a certain "Jehan Demaske" is listed as a resident of the town of Rouen. It is possible that the name was originally an occupational surname, referring to someone who made or sold masks or costumes.
In the 15th century, a notable figure bearing the DEMASKE name was Guillaume DEMASKE, a merchant and landowner from the city of Amiens in Picardy. He is mentioned in several legal documents from the time, including a land dispute case from 1462.
The name also appears in the ancient records of the Duchy of Burgundy, where a certain Jean DEMASKE is recorded as a member of the ducal court in the early 16th century, serving under Charles the Bold.
As the DEMASKE family spread across France and Europe, the spelling of the name evolved slightly, with variations such as DEMASQUE, DEMASK, and DEMASQUE appearing in different regions. One notable bearer of the name was Pierre DEMASQUE, a French Renaissance poet and playwright who lived in the late 16th century.
Another significant figure was Marie DEMASKE, a notable Catholic nun and educator from the 17th century. Born in 1628 in Lille, she founded several schools and convents in northern France and is remembered for her contributions to the education of young women.
In the 18th century, Jacques DEMASKE, a French military officer, gained recognition for his service in the War of the Austrian Succession, where he fought under the command of Marshal Saxe.
While the DEMASKE surname is not among the most common in France today, it has a rich historical legacy that spans several centuries and various regions of the country.
Demographics
Ancestry and ethnicity for Demaske
Among Census respondents with the surname Demaske, the largest self-reported group is White at 93.6%. The next largest groups are Two or More Races (2.8%) and American Indian/Alaska Native (1.8%).
The bar chart below shows how Demaske 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 Demaske surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.6% · 102
- Two or more races2.8% · 3
- American Indian and Alaska Native1.8% · 2
- Black or African American0.9% · 1
- Asian and Pacific Islander0.9% · 1
Timeline
Historical Census data for Demaske
Demaske appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#150,205
National surname rank
Recorded bearers 109
-8 bearers (-6.8%)
Per 100,000 0.04
Rank movement Down 8,097 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #142,108 | 117 | 0.04 | First available Census row | First available Census row |
| 2020 | #150,205 | 109 | 0.04 | -8 bearers (-6.8%) | Down 8,097 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 Demaske 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 | #142,108 | #150,205 | -5.7% |
| Count | 117 | 109 | -6.8% |
| Per 100K | 0.04 | 0.04 | -8.8% |
Between the 2010 and 2020 Census, the number of Demaske bearers went from 117 to 109 (-6.8% change). The surname moved down 8,097 positions in the national ranking, going from #142,108 to #150,205.
FAQ
Demaske surname: questions and answers
How many people in the U.S. have the surname Demaske?
Name Census estimates that about 125 living Americans carry the surname Demaske. Using the current population baseline, that works out to roughly 1 in 2,742,035 residents.
How common is Demaske?
Demaske ranks #150,205 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 109 people with the surname Demaske. That is different from the site's living-bearer estimate (125), 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 Demaske.
Has Demaske become more or less common over time?
Between 2010 and 2020, the surname Demaske went from 117 recorded bearers to 109. That is a decrease of 8 (-6.8%). In the national ranking it fell from #142,108 to #150,205.
What does the Census say about the background of Demaske?
Among Census respondents with the surname Demaske, the largest self-reported group is White at 93.6%. The next largest groups are Two or More Races (2.8%) and American Indian/Alaska Native (1.8%). 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 Demaske in the 2020 Census, accounting for 93.6% (102 people in the source table).
What is the full ancestry breakdown?
Demaske appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.6%), Two or More Races (2.8%), American Indian/Alaska Native (1.8%). 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 Demaske (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 Demaske mean?
An occupational surname likely referring to someone who made masks or armor. 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 Demaske (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 Americans have the surname Demaske?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.