The Fonseca surname
In the 2000 U.S. Census, 19,513 people carried this name — #1,682 among all U.S. surnames, about 1 in every 13,800 people counted.
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In Switzerland’s population statistics
1,418 people named Fonseca live in Switzerland.
They live in 20 of Switzerland’s 26 cantons, most of all in Vaud.
Where it concentrates, on the mapWhere they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss · names with fewer than 3 bearers in a canton are not published.
In France’s civil register
France’s register of deaths holds 272 people named Fonseca.
Most of them — 181 — were born outside France. Those born in France came from 30 départements, most often Loiret.
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 print
Fonseca in American newspapers,
1891–1960.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 10,581 pages in all carry the name.
Who carried it
People named Fonseca,
with a public archive behind them.
-
Agostinho da Anunciação 1649–1713 · politician -
Manuel Pinto da Fonseca 1681–1773 · governor -
Rodrigo da Fonseca Magalhães 1787–1858 · writer -
António Manuel da Fonseca 1796–1890 · painter -
Severiano Martins da Fonseca 1825–1889 · military personnel
Wikidata and Wikimedia Commons (CC0) · 231 lives in all are documented under this name.
Nearby in the index
Surnames next to Fonseca.
- Fonck 117 · U.S. census
- Fond 108 · U.S. census
- Fonder 599 · U.S. census
- Fondeur 168 · U.S. census
- Fonrose 123 · U.S. census
- Fons 528 · U.S. census
- Font 1,692 · U.S. census
- Fontaine 11,542 · U.S. census
- Fontan 607 · U.S. census
- Fontana 7,525 · U.S. census
- Fontane 196 · U.S. census
- Fontanella 508 · U.S. census
When the index is not enough
This page says where Fonseca 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.