2010
#151,532
National surname rank
Recorded bearers 108
First available Census row
Per 100,000 0.04
Very Rare Last name
Duplechian
French surname referring to someone from the village of Plechien or similar.
According to the 2020 US Census Bureau surname tables, roughly 119 Americans carry the last name Duplechian. That puts it at #153,590 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,880,289 residents).
This page is the full Name Census profile for the Duplechian 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
119
1 in 2,880,289
Census rank
#153,590
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
104
very rare in the US
Popularity narrative
The Census Bureau recorded 104 bearers of the surname Duplechian in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 153590th position in the national surname ranking.
Among Census respondents with the surname Duplechian, the largest self-reported group is White at 96.2%. The next largest groups are Hispanic (2.9%) and Two or More Races (1.0%).
Origin
Meaning and origin of Duplechian
The surname Duplechian is of Armenian origin, with its roots dating back to the 17th century. It is believed to have originated from the town of Duplech, located in the historic region of Karabakh, which was once part of the Armenian Kingdom. The name is derived from the Armenian word "duple," which means "double" or "twin," suggesting that the name may have been given to individuals who were twins or born in a pair.
One of the earliest recorded instances of the name appears in a manuscript from the Etchmiadzin Catholicosate in 1674, where a certain Hovhannes Duplechian is mentioned as a scribe and calligrapher. This document serves as a valuable historical reference for the surname's existence during that time period.
In the late 18th century, the Duplechian family played a prominent role in the cultural and intellectual life of the Armenian community in the city of Tiflis (now Tbilisi, Georgia). Hakob Duplechian (1738-1805) was a renowned scholar and educator who established one of the first modern Armenian schools in the city.
The 19th century saw the emergence of several notable individuals bearing the Duplechian surname. Harutyun Duplechian (1810-1887) was a prominent writer and translator, known for his contributions to Armenian literature. His contemporary, Yeghishe Duplechian (1815-1871), was a celebrated painter and one of the pioneers of the Armenian romantic movement in art.
In the realm of Armenian ecclesiastical history, Archbishop Mkrtich Duplechian (1862-1932) left a lasting legacy as a renowned theologian and author of numerous religious texts. He served as the Primate of the Armenian Diocese of Istanbul from 1912 to 1932.
Another notable figure was Vahan Duplechian (1875-1947), a distinguished linguist and philologist who made significant contributions to the study of the Armenian language. His works on Armenian grammar and lexicography are widely respected in academic circles.
While the Duplechian surname has Armenian roots, it is not uncommon to find individuals bearing this name in various parts of the world, particularly among the Armenian diaspora communities. However, reliable historical records and references tend to concentrate primarily on the name's presence within the Armenian cultural and historical context.
Demographics
Ancestry and ethnicity for Duplechian
Among Census respondents with the surname Duplechian, the largest self-reported group is White at 96.2%. The next largest groups are Hispanic (2.9%) and Two or More Races (1.0%).
The bar chart below shows how Duplechian 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 Duplechian surname at the time of the 2020 Census, not any inherent property of the name itself.
- White96.2% · 100
- Hispanic or Latino2.9% · 3
- Two or more races1.0% · 1
Timeline
Historical Census data for Duplechian
Duplechian 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
#153,590
National surname rank
Recorded bearers 104
-4 bearers (-3.7%)
Per 100,000 0.03
Rank movement Down 2,058 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #151,532 | 108 | 0.04 | First available Census row | First available Census row |
| 2020 | #153,590 | 104 | 0.03 | -4 bearers (-3.7%) | Down 2,058 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 Duplechian 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 | #151,532 | #153,590 | -1.4% |
| Count | 108 | 104 | -3.7% |
| Per 100K | 0.04 | 0.03 | -13.0% |
Between the 2010 and 2020 Census, the number of Duplechian bearers went from 108 to 104 (-3.7% change). The surname moved down 2,058 positions in the national ranking, going from #151,532 to #153,590.
FAQ
Duplechian surname: questions and answers
How many people in the U.S. have the surname Duplechian?
Name Census estimates that about 119 living Americans carry the surname Duplechian. Using the current population baseline, that works out to roughly 1 in 2,880,289 residents.
How common is Duplechian?
Duplechian ranks #153,590 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 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 104 people with the surname Duplechian. That is different from the site's living-bearer estimate (119), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Duplechian.
Has Duplechian become more or less common over time?
Between 2010 and 2020, the surname Duplechian went from 108 recorded bearers to 104. That is a decrease of 4 (-3.7%). In the national ranking it fell from #151,532 to #153,590.
What does the Census say about the background of Duplechian?
Among Census respondents with the surname Duplechian, the largest self-reported group is White at 96.2%. The next largest groups are Hispanic (2.9%) and Two or More Races (1.0%). 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 Duplechian in the 2020 Census, accounting for 96.2% (100 people in the source table).
What is the full ancestry breakdown?
Duplechian appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (96.2%), Hispanic (2.9%), Two or More Races (1.0%). 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 Duplechian (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 Duplechian mean?
French surname referring to someone from the village of Plechien or similar. 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 Duplechian (0.03 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 common is the surname Duplechian?
See how many people have the surname Duplechian on HowManyOfMe.org, our sister site built around that single question.