The Dupas surname
In the 2010 U.S. Census, 433 people carried this name — #48,717 among all U.S. surnames, about 1 in every 666,700 people counted. That is up 3% from 421 in 2000.
In France’s civil register
France’s register of deaths holds 2,692 people named Dupas.
19 of them were born outside France. Those born in France came from 76 départements, most often Nord.
Where it concentrates, on the mapWhere they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In Belgium’s population register
At least 47 people named Dupas live in Belgium.
Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in Hainaut.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In Switzerland’s population statistics
37 people named Dupas live in Switzerland.
They live in 3 of Switzerland’s 26 cantons, most of all in Vaud.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
Who carried it
People named Dupas,
with a public archive behind them.
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Pierre-Louis Dupas 1761–1823 · military personnel -
Eugène Dupas 1852–1918 · civil servant -
Jean Dupas 1882–1964 · poster artist -
Joseph de Valnais 1734–1825
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Eugène Dupas 1820–1882 · pharmacist
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Alexandre Dupas 1868–1938 · military personnel
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Dupas.
- Dunas 110 · U.S. census
- Dune 177 · U.S. census
- Dunkel 2,079 · U.S. census
- Duong 24,870 · U.S. census
- Dupard 153 · U.S. census
- Dupart 300 · U.S. census
- Dupere 304 · U.S. census
- Duperon 194 · U.S. census
- Duperron 222 · U.S. census
- Dupey 224 · U.S. census
- Dupin 558 · U.S. census
- Duplain 215 · U.S. census
When the index is not enough
This page says where Dupas is.
A volume says what happened to it.
Every page in the index is free and stays free. The Heritage Volume is the long form: the full paper trail, the arms, the crossing — bound, and yours.