2000
#9,668
National surname rank
Recorded bearers 3,085
First available Census row
Per 100,000 1.14
Rare Last name
Demaria
An Italian surname derived from the given name Maria, referring to a devotee of the Virgin Mary.
According to the 2020 US Census Bureau surname tables, roughly 3,085 Americans carry the last name Demaria. That puts it at #11,235 in the national surname ranking, appearing at a frequency of 0.90 per 100,000 people (about 1 in 111,104 residents).
This page is the full Name Census profile for the Demaria 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
3.1K
1 in 111,104
Census rank
#11,235
2020 decennial data
Per 100,000
0.9
Frequency rate
Recorded bearers
2.7K
rare in the US
Popularity narrative
The Census Bureau recorded 2,690 bearers of the surname Demaria in its 2020 decennial surname file. At a rate of 0.90 per 100,000 residents, it holds the 11235th position in the national surname ranking.
Among Census respondents with the surname Demaria, the largest self-reported group is White at 89.1%. The next largest groups are Hispanic (7.2%) and Two or More Races (2.3%).
Origin
Meaning and origin of Demaria
The surname DeMaria has its origins in Italy, where it first emerged during the medieval period. It is derived from the Latin name "Maria," which was a popular name given to girls in honor of the Virgin Mary. The prefix "de" translates to "of" or "from," suggesting that the surname originally referred to someone who lived near a place named Maria or a location dedicated to the Virgin Mary.
One of the earliest recorded instances of the surname DeMaria can be found in the "Codice Diplomatico Longobardo," a collection of medieval documents from the Lombard region of Italy. In this manuscript, a certain "Petrus de Maria" is mentioned as a witness to a legal transaction in the year 1187.
The surname DeMaria has also been linked to various place names in Italy. For instance, there is a town called Santa Maria di Leuca in the Apulia region, which may have given rise to the surname for families who originated from or lived near that area.
During the Renaissance period, several notable individuals bore the surname DeMaria. One example is Francesco DeMaria, a renowned painter from Naples who lived from 1623 to 1690. His works can be found in various churches and galleries throughout Italy.
Another prominent figure was Giovanni Battista DeMaria, a Jesuit priest and scientist who lived from 1617 to 1688. He made significant contributions to the field of optics and is credited with developing an early form of the telescope.
In the 18th century, Antonio DeMaria (1688-1763) was a celebrated composer and music theorist from Naples. He wrote numerous operas and instrumental works, and his treatises on musical theory were widely studied during his time.
Moving into the 19th century, Giuseppe DeMaria (1813-1890) was an Italian politician and lawyer who served as a deputy in the Sardinian parliament and later in the unified Italian parliament after the country's unification.
Finally, in the early 20th century, Mario DeMaria (1890-1957) was a prominent Italian-American artist and painter known for his landscapes and portraits. He spent much of his career in New York City, where he gained recognition for his vibrant and expressive style.
These are just a few examples of the many individuals throughout history who have carried the surname DeMaria, a name that traces its roots back to medieval Italy and the Latin name Maria, reflecting the influence of the Virgin Mary in the region's culture and tradition.
Demographics
Ancestry and ethnicity for Demaria
Among Census respondents with the surname Demaria, the largest self-reported group is White at 89.1%. The next largest groups are Hispanic (7.2%) and Two or More Races (2.3%).
The bar chart below shows how Demaria 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 Demaria surname at the time of the 2020 Census, not any inherent property of the name itself.
- White89.1% · 2,398
- Hispanic or Latino7.2% · 195
- Two or more races2.3% · 62
- Asian and Pacific Islander0.7% · 20
- Black or African American0.5% · 14
- American Indian and Alaska Native0.0% · 1
Timeline
Historical Census data for Demaria
Demaria 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
#9,361
National surname rank
Recorded bearers 3,475
+390 bearers (+12.6%)
Per 100,000 1.18
Rank movement Up 307 places
2020
#11,235
National surname rank
Recorded bearers 2,690
-785 bearers (-22.6%)
Per 100,000 0.90
Rank movement Down 1,874 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #9,668 | 3,085 | 1.14 | First available Census row | First available Census row |
| 2010 | #9,361 | 3,475 | 1.18 | +390 bearers (+12.6%) | Up 307 places |
| 2020 | #11,235 | 2,690 | 0.90 | -785 bearers (-22.6%) | Down 1,874 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 Demaria 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 | #9,361 | #11,235 | -20.0% |
| Count | 3,475 | 2,690 | -22.6% |
| Per 100K | 1.18 | 0.90 | -23.7% |
Between the 2010 and 2020 Census, the number of Demaria bearers went from 3,475 to 2,690 (-22.6% change). The surname moved down 1,874 positions in the national ranking, going from #9,361 to #11,235.
FAQ
Demaria surname: questions and answers
How many people in the U.S. have the surname Demaria?
Name Census estimates that about 3,085 living Americans carry the surname Demaria. Using the current population baseline, that works out to roughly 1 in 111,104 residents.
How common is Demaria?
Demaria ranks #11,235 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.90 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 2,690 people with the surname Demaria. That is different from the site's living-bearer estimate (3,085), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.9 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.90 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Demaria.
Has Demaria become more or less common over time?
Between 2010 and 2020, the surname Demaria went from 3,475 recorded bearers to 2,690. That is a decrease of 785 (-22.6%). In the national ranking it fell from #9,361 to #11,235.
What does the Census say about the background of Demaria?
Among Census respondents with the surname Demaria, the largest self-reported group is White at 89.1%. The next largest groups are Hispanic (7.2%) and Two or More Races (2.3%). 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 Demaria in the 2020 Census, accounting for 89.1% (2,398 people in the source table).
What is the full ancestry breakdown?
Demaria appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (89.1%), Hispanic (7.2%), Two or More Races (2.3%). 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 Demaria (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 Demaria mean?
An Italian surname derived from the given name Maria, referring to a devotee of the Virgin Mary. 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 Demaria (0.90 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 are called Demaria?
If you just want to know how many people have the surname Demaria, HowManyOfMe.org gives you the headline number in one glance.