2000
#134,037
National surname rank
Recorded bearers 116
First available Census row
Per 100,000 0.04
Very Rare Last name
Demeri
A surname possibly derived from Greek and meaning of uncertain origin.
According to the 2020 US Census Bureau surname tables, roughly 135 Americans carry the last name Demeri. That puts it at #143,511 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,538,921 residents).
This page is the full Name Census profile for the Demeri 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
135
1 in 2,538,921
Census rank
#143,511
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
118
very rare in the US
Popularity narrative
The Census Bureau recorded 118 bearers of the surname Demeri in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 143511th position in the national surname ranking.
Among Census respondents with the surname Demeri, the largest self-reported group is White at 89.8%. The next largest groups are Hispanic (5.9%) and American Indian/Alaska Native (1.7%).
Origin
Meaning and origin of Demeri
The surname DEMERI originated in Italy during the late Middle Ages, around the 13th century. It is believed to have derived from the Italian word "demerio," which means "domain" or "estate." This suggests that the name may have been initially associated with landowners or those who held significant property.
One of the earliest recorded instances of the name DEMERI can be found in a medieval document from the city of Florence, dated 1289. This document mentions a certain "Giovanni di Demerio," which translates to "John of the Estate," indicating a connection to land ownership or nobility.
In the 14th century, the DEMERI name appeared in several historical records from the regions of Tuscany and Umbria, where the surname was particularly prevalent. For instance, a tax registry from the city of Perugia in 1387 lists several families with the DEMERI surname, suggesting their presence in the area.
During the Renaissance period, the DEMERI name gained prominence through notable individuals. One such figure was Antonio DEMERI (1458-1522), a renowned artist from the city of Siena. His frescoes can still be admired in the Basilica of San Domenico in Siena, a testament to his artistic legacy.
Another prominent bearer of the DEMERI name was Giulio DEMERI (1521-1598), a scholar and humanist from Florence. He was known for his extensive work on the writings of the ancient Roman philosopher Seneca and was highly regarded in academic circles of his time.
In the 17th century, the DEMERI family continued to leave their mark, particularly in the field of architecture. Pietro DEMERI (1602-1674) was a renowned architect from Rome, responsible for the design of several churches and palaces, including the Chiesa di San Giuseppe alle Fornaci and the Palazzo Valenti.
As the centuries progressed, the DEMERI surname spread beyond Italy, with some bearers migrating to other parts of Europe and even the Americas. However, the name's roots remained firmly planted in its Italian heritage, reflecting a rich history associated with land ownership, artistic expression, and scholarly pursuits.
Demographics
Ancestry and ethnicity for Demeri
Among Census respondents with the surname Demeri, the largest self-reported group is White at 89.8%. The next largest groups are Hispanic (5.9%) and American Indian/Alaska Native (1.7%).
The bar chart below shows how Demeri 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 Demeri surname at the time of the 2020 Census, not any inherent property of the name itself.
- White89.8% · 106
- Hispanic or Latino5.9% · 7
- American Indian and Alaska Native1.7% · 2
- Black or African American0.8% · 1
- Asian and Pacific Islander0.8% · 1
- Two or more races0.8% · 1
Timeline
Historical Census data for Demeri
Demeri 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
#160,975
National surname rank
Recorded bearers 100
-16 bearers (-13.8%)
Per 100,000 0.03
Rank movement Down 26,938 places
2020
#143,511
National surname rank
Recorded bearers 118
+18 bearers (+18.0%)
Per 100,000 0.04
Rank movement Up 17,464 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #134,037 | 116 | 0.04 | First available Census row | First available Census row |
| 2010 | #160,975 | 100 | 0.03 | -16 bearers (-13.8%) | Down 26,938 places |
| 2020 | #143,511 | 118 | 0.04 | +18 bearers (+18.0%) | Up 17,464 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 Demeri 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 | #160,975 | #143,511 | 10.8% |
| Count | 100 | 118 | 18.0% |
| Per 100K | 0.03 | 0.04 | 31.6% |
Between the 2010 and 2020 Census, the number of Demeri bearers went from 100 to 118 (+18.0% change). The surname moved up 17,464 positions in the national ranking, going from #160,975 to #143,511.
FAQ
Demeri surname: questions and answers
How many people in the U.S. have the surname Demeri?
Name Census estimates that about 135 living Americans carry the surname Demeri. Using the current population baseline, that works out to roughly 1 in 2,538,921 residents.
How common is Demeri?
Demeri ranks #143,511 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 118 people with the surname Demeri. That is different from the site's living-bearer estimate (135), 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 Demeri.
Has Demeri become more or less common over time?
Between 2010 and 2020, the surname Demeri went from 100 recorded bearers to 118. That is an increase of 18 (+18.0%). In the national ranking it rose from #160,975 to #143,511.
What does the Census say about the background of Demeri?
Among Census respondents with the surname Demeri, the largest self-reported group is White at 89.8%. The next largest groups are Hispanic (5.9%) and American Indian/Alaska Native (1.7%). 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 Demeri in the 2020 Census, accounting for 89.8% (106 people in the source table).
What is the full ancestry breakdown?
Demeri appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (89.8%), Hispanic (5.9%), American Indian/Alaska Native (1.7%). 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.
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 Demeri (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 Demeri mean?
A surname possibly derived from Greek and meaning of uncertain origin. 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 Demeri (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 Demeri?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.