The Sanjuan surname
In the 2010 U.S. Census, 4,232 people carried this name — #7,825 among all U.S. surnames, about 1 in every 69,900 people counted. That is up 50% from 2,812 in 2000.
In Argentina’s national register
At least 375 people named Sanjuan 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 France’s civil register
France’s register of deaths holds 153 people named Sanjuan.
63 of them were born outside France. Those born in France came from 31 départements, most often Hauts-de-Seine.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In Switzerland’s population statistics
57 people named Sanjuan live in Switzerland.
They live in 7 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.
In print
Sanjuan in American newspapers,
1898–1927.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 8,839 pages in all carry the name.
Who carried it
People named Sanjuan,
with a public archive behind them.
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Antònia Sanjuan i Vidal 1923–2021 · singer
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Pascal Sanjuan 1962– · official
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Delia Sanjuan 1963– · politician
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Thierry Sanjuan 1966– · university teacher
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Agathe Sanjuan 1978– · archivist
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Valentí Sanjuan 1981– · journalist
Wikidata (CC0).
Nearby in the index
Surnames next to Sanjuan.
- Sangalli 214 · U.S. census
- Sangare 401 · U.S. census
- Sangiovanni 428 · U.S. census
- Sango 227 · U.S. census
- Sanguinetti 788 · U.S. census
- Sani 529 · U.S. census
- Sanmartin 2,121 · U.S. census
- Sanna 649 · U.S. census
- Sanne 221 · U.S. census
- Sanner 3,067 · U.S. census
- Sannino 158 · U.S. census
- Sans 508 · U.S. census
When the index is not enough
This page says where Sanjuan 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.