2000
#149,328
National surname rank
Recorded bearers 101
First available Census row
Per 100,000 0.04
Very Rare Last name
Deloriea
An Italian surname derived from a place name or personal name from the Loria region.
According to the 2020 US Census Bureau surname tables, roughly 125 Americans carry the last name Deloriea. 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 Deloriea 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 Deloriea 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 Deloriea, the largest self-reported group is White at 87.2%. The next largest groups are Two or More Races (5.5%) and Hispanic (3.7%).
Origin
Meaning and origin of Deloriea
The surname DELORIEA is believed to have originated in France during the late medieval period, likely derived from the Old French words "de la" meaning "from the" and "orie" or "oriee" meaning a riverbank or shoreline. This suggests the name may have originally referred to someone who lived near a river or coastal area.
One of the earliest recorded instances of the name appears in a 14th-century manuscript from Normandy, where it was spelled "de l'Orie". This spelling variation lends further credence to the theory of the name's derivation from the French words related to bodies of water.
In the 15th century, there are records of a noble family with the name DELORIEA residing in the region of Poitou in western France. A prominent member of this family, Jean DELORIEA (1432-1498), served as a royal advisor and diplomat during the reign of King Louis XI.
During the 16th century, the name spread across France and into neighboring regions. In 1586, a merchant named Pierre DELORIEA (1548-1612) established a successful trading company in Bordeaux, which played a role in the city's economic growth during that era.
As the name continued to disperse, it also evolved into various spellings based on regional dialects and scribal variations. For instance, in the 17th century, there are records of the name being spelled "Delorier" and "Deloriey" in different parts of France and Belgium.
Another notable bearer of the name was Marie DELORIEA (1678-1741), a renowned French author and playwright who was part of the literary circles in Paris during the early 18th century.
By the 19th century, the name had spread to other parts of Europe, including Spain and Italy. One example is the Italian artist and sculptor, Giovanni DELORIEA (1802-1879), who was known for his works depicting scenes from classical mythology.
While the surname DELORIEA is not as common today as it was in its earlier history, it continues to be found in various parts of the world, reflecting the migrations and diaspora of families bearing this name over the centuries.
Demographics
Ancestry and ethnicity for Deloriea
Among Census respondents with the surname Deloriea, the largest self-reported group is White at 87.2%. The next largest groups are Two or More Races (5.5%) and Hispanic (3.7%).
The bar chart below shows how Deloriea 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 Deloriea surname at the time of the 2020 Census, not any inherent property of the name itself.
- White87.2% · 95
- Two or more races5.5% · 6
- Hispanic or Latino3.7% · 4
- Asian and Pacific Islander2.8% · 3
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Deloriea
Deloriea 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
#140,157
National surname rank
Recorded bearers 119
+18 bearers (+17.8%)
Per 100,000 0.04
Rank movement Up 9,171 places
2020
#150,205
National surname rank
Recorded bearers 109
-10 bearers (-8.4%)
Per 100,000 0.04
Rank movement Down 10,048 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #149,328 | 101 | 0.04 | First available Census row | First available Census row |
| 2010 | #140,157 | 119 | 0.04 | +18 bearers (+17.8%) | Up 9,171 places |
| 2020 | #150,205 | 109 | 0.04 | -10 bearers (-8.4%) | Down 10,048 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 Deloriea 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 | #140,157 | #150,205 | -7.2% |
| Count | 119 | 109 | -8.4% |
| Per 100K | 0.04 | 0.04 | -8.8% |
Between the 2010 and 2020 Census, the number of Deloriea bearers went from 119 to 109 (-8.4% change). The surname moved down 10,048 positions in the national ranking, going from #140,157 to #150,205.
FAQ
Deloriea surname: questions and answers
How many people in the U.S. have the surname Deloriea?
Name Census estimates that about 125 living Americans carry the surname Deloriea. Using the current population baseline, that works out to roughly 1 in 2,742,035 residents.
How common is Deloriea?
Deloriea 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 Deloriea. 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 Deloriea.
Has Deloriea become more or less common over time?
Between 2010 and 2020, the surname Deloriea went from 119 recorded bearers to 109. That is a decrease of 10 (-8.4%). In the national ranking it fell from #140,157 to #150,205.
What does the Census say about the background of Deloriea?
Among Census respondents with the surname Deloriea, the largest self-reported group is White at 87.2%. The next largest groups are Two or More Races (5.5%) and Hispanic (3.7%). 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 Deloriea in the 2020 Census, accounting for 87.2% (95 people in the source table).
What is the full ancestry breakdown?
Deloriea appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (87.2%), Two or More Races (5.5%), Hispanic (3.7%). 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 Deloriea (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 Deloriea mean?
An Italian surname derived from a place name or personal name from the Loria region. 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 Deloriea (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 have the last name Deloriea?
You can see how many people have the last name Deloriea on our sister site HowManyOfMe.org — same data roots, lighter UI.