The Castor surname
In the 2010 U.S. Census, 6,063 people carried this name — #5,722 among all U.S. surnames, about 1 in every 48,500 people counted. That is up 14% from 5,331 in 2000.
In France’s civil register
France’s register of deaths holds 407 people named Castor.
60 of them were born outside France. Those born in France came from 45 départements, most often Vaucluse.
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 79 people named Castor 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 Santa Fe.
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.
In the Nordic population registers
98 people named Castor is counted in Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published.
Counted, by country
Own calculations based on data from Statistics Sweden (SCB), surnames with at least two bearers, 31 December 2022 — CC BY 4.0 (names with 20 or more bearers shown).
Who carried it
People named Castor,
with a public archive behind them.
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George A. Castor 1855–1906 · politician -
Annie Glenn 1920–2020 · philanthropist -
Jimmy Castor 1940–2012 · singer -
Jean-Joseph Castor 1781–1861 · writer
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Jean-Joseph Castor 1781–1860 · writer
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Jean-Joseph Castor 1782–1861 · writer
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Castor.
- Castiglioni 143 · U.S. census
- Castilla 2,071 · U.S. census
- Castille 2,821 · U.S. census
- Castillo 230,420 · U.S. census
- Castillon 1,657 · U.S. census
- Castin 203 · U.S. census
- Castro 184,134 · U.S. census
- Castronovo 629 · U.S. census
- Casula 174 · U.S. census
- Cat 182 · U.S. census
- Catala 869 · U.S. census
- Catalan 6,899 · U.S. census
When the index is not enough
This page says where Castor 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.