The Castanheira surname
In the 2010 U.S. Census, 193 people carried this name — #94,730 among all U.S. surnames, about 1 in every 1,428,600 people counted. That is up 1% from 191 in 2000.
In Switzerland’s population statistics
124 people named Castanheira live in Switzerland.
They live in 11 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 Argentina’s national register
At least 61 people named Castanheira 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.
In France’s civil register
France’s register of deaths holds 60 people named Castanheira.
Most of them — 46 — were born outside France. Those born in France came from 11 départements, most often Puy-de-Dôme.
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
Castanheira in American newspapers,
1897–1946.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 24 pages in all carry the name.
Who carried it
People named Castanheira,
with a public archive behind them.
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Jorge Castanheira 1962– -
Carlos Castanheira 1957– · architect
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Graça Castanheira 1962– · film director
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Bruno Castanheira 1977–2014 · sport cyclist
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Sónia Castanheira 1991– · association football player
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Adriano Castanheira 1993– · association football player
Wikidata and Wikimedia Commons (CC0) · 17 lives in all are documented under this name.
Nearby in the index
Surnames next to Castanheira.
- Castagnoli 137 · U.S. census
- Castaing 226 · U.S. census
- Castaldi 809 · U.S. census
- Castaldo 2,222 · U.S. census
- Castan 226 · U.S. census
- Castaner 203 · U.S. census
- Castano 6,133 · U.S. census
- Castel 711 · U.S. census
- Castelein 146 · U.S. census
- Castell 939 · U.S. census
- Castella 262 · U.S. census
- Castellan 249 · U.S. census
When the index is not enough
This page says where Castanheira 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.