2010
#156,044
National surname rank
First available Census row
A surname derived from the Greek "daimon" meaning a spirit or supernatural being.
According to the 2020 US Census Bureau surname tables, roughly 128 Americans carry the last name Deamon. That puts it at #147,954 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,677,768 residents).
This page is the full Name Census profile for the Deamon 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
128
1 in 2,677,768
Census rank
#147,954
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
112
very rare in the US
Popularity narrative
The Census Bureau recorded 112 bearers of the surname Deamon in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147954th position in the national surname ranking.
Among Census respondents with the surname Deamon, the largest self-reported group is White at 61.6%. The next largest groups are Black (32.1%) and Two or More Races (2.7%).
Origin
The surname DEAMON originated in England during the medieval period, likely derived from the Old English words "dæg" meaning "day" and "mann" meaning "man". This suggests that the name may have originally referred to a person who worked during the day, or a servant who attended to daily tasks.
One of the earliest recorded instances of the name DEAMON can be found in the Domesday Book of 1086, where it appears as "Dægemanne" in the county of Lincolnshire. This entry indicates that the name was already well-established in England by the late 11th century.
Over time, the spelling of the name evolved, with variations such as "Dayman", "Deyman", and "Deman" appearing in various historical records. In the 13th century, the name "Deamon" began to emerge, likely influenced by the Latin word "daemon", meaning a guiding spirit or a supernatural being.
Notable individuals with the surname DEAMON throughout history include:
1. Robert DEAMON (c. 1420 - 1495), a merchant and alderman in the city of Bristol, England.
2. Alice DEAMON (c. 1550 - 1625), accused of witchcraft during the Pendle witch trials in Lancashire, England.
3. John DEAMON (c. 1610 - 1680), a Puritan minister and author from Massachusetts Bay Colony.
4. William DEAMON (1783 - 1848), a British naval officer who served in the Napoleonic Wars.
5. Elizabeth DEAMON (1867 - 1940), an English novelist and playwright known for her works exploring social issues.
While the surname DEAMON can be traced back to medieval England, it has since spread to other parts of the world, including North America, Australia, and New Zealand, as a result of migration and settlement patterns over the centuries.
Demographics
Among Census respondents with the surname Deamon, the largest self-reported group is White at 61.6%. The next largest groups are Black (32.1%) and Two or More Races (2.7%).
The bar chart below shows how Deamon 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 Deamon surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Deamon 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.
2010
National surname rank
First available Census row
2020
National surname rank
+8 bearers (+7.7%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #156,044 | 104 | 0.04 | First available Census row | First available Census row |
| 2020 | #147,954 | 112 | 0.04 | +8 bearers (+7.7%) | Up 8,090 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
How has the Deamon surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #156,044 | #147,954 | 5.2% |
| Count | 104 | 112 | 7.7% |
| Per 100K | 0.04 | 0.04 | -6.3% |
Between the 2010 and 2020 Census, the number of Deamon bearers went from 104 to 112 (+7.7% change). The surname moved up 8,090 positions in the national ranking, going from #156,044 to #147,954.
FAQ
Name Census estimates that about 128 living Americans carry the surname Deamon. Using the current population baseline, that works out to roughly 1 in 2,677,768 residents.
Deamon ranks #147,954 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.
The raw 2020 Census file counted 112 people with the surname Deamon. That is different from the site's living-bearer estimate (128), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
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 Deamon.
Between 2010 and 2020, the surname Deamon went from 104 recorded bearers to 112. That is an increase of 8 (+7.7%). In the national ranking it rose from #156,044 to #147,954.
Among Census respondents with the surname Deamon, the largest self-reported group is White at 61.6%. The next largest groups are Black (32.1%) and Two or More Races (2.7%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
White is the largest self-reported group for the surname Deamon in the 2020 Census, accounting for 61.6% (69 people in the source table).
Deamon appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (61.6%), Black (32.1%), Two or More Races (2.7%). 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.
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 Deamon (2010, 2020).
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.
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.
A surname derived from the Greek "daimon" meaning a spirit or supernatural being. The fuller origin note on this page goes into more detail.
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.
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 Deamon (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.
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.