The Casimir surname
In the 2010 U.S. Census, 1,936 people carried this name — #15,217 among all U.S. surnames, about 1 in every 151,500 people counted. That is up 33% from 1,460 in 2000.
In France’s civil register
France’s register of deaths holds 645 people named Casimir.
70 of them were born outside France. Those born in France came from 72 départements, most often Guadeloupe.
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 56 people named Casimir 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.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
Who carried it
People named Casimir,
with a public archive behind them.
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Friedrich Casimir von Ortenburg 1591–1658 · artist -
Rommert Casimir 1877–1957 · university teacher -
Philippe Casimir de Falk 1730–1822 · military officer
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Jean Anne Casimir 1787– · printer
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Philippe Casimir 1853–1939 · politician
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Fernand Casimir 1896–1985 · governor
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Casimir.
- Casella 3,797 · U.S. census
- Casellas 143 · U.S. census
- Caselli 435 · U.S. census
- Caserta 1,310 · U.S. census
- Cases 139 · U.S. census
- Casile 113 · U.S. census
- Casimiro 2,027 · U.S. census
- Casini 334 · U.S. census
- Casner 1,913 · U.S. census
- Caso 1,557 · U.S. census
- Casola 424 · U.S. census
- Casolari 182 · U.S. census
When the index is not enough
This page says where Casimir 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.