The Dalmas surname
In the 2010 U.S. Census, 254 people carried this name — #75,799 among all U.S. surnames, about 1 in every 1,111,100 people counted. That is up 25% from 203 in 2000.
In France’s civil register
France’s register of deaths holds 922 people named Dalmas.
41 of them were born outside France. Those born in France came from 61 départements, most often Alpes-Maritimes.
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 Argentina’s national register
At least 266 people named Dalmas live in Argentina.
RENAPER only publishes a name in a province when more than ten people there share it, so the real number is higher. Most of them live in Buenos Aires Province.
Where it concentrates, on the mapWhere they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In Switzerland’s population statistics
23 people named Dalmas live in Switzerland.
They live in 4 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 Dalmas,
with a public archive behind them.
-
Sophie Madeline Dalmas du Pont 1775–1828 -
Joseph Benoît Dalmas 1754–1824 · politician
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Antoine Dalmas 1757–1830 · physician
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Léon Pierre Emile Dalmas de Lapérouse 1805–1874 · military personnel
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Théobald Dalmas de Lapérouse 1814–1899 · military personnel
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Léon-Robert Dalmas de Lapérouse 1842–1915 · military personnel
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Dalmas.
- Dallavalle 208 · U.S. census
- Dalle 128 · U.S. census
- Daller 157 · U.S. census
- Dallo 281 · U.S. census
- Dallon 105 · U.S. census
- Dally 1,225 · U.S. census
- Dalmau 372 · U.S. census
- Dalon 137 · U.S. census
- Daly 31,330 · U.S. census
- Dam 3,186 · U.S. census
- Damas 1,290 · U.S. census
- Dambach 408 · U.S. census
When the index is not enough
This page says where Dalmas 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.