The Gastaldi surname
In the 2000 U.S. Census, 134 people carried this name — #119,644 among all U.S. surnames, about 1 in every 2,000,000 people counted.
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In France’s civil register
France’s register of deaths holds 760 people named Gastaldi.
116 of them were born outside France. Those born in France came from 29 départements, most often Alpes-Maritimes.
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 Switzerland’s population statistics
42 people named Gastaldi live in Switzerland.
They live in 6 of Switzerland’s 26 cantons, most of all in Valais.
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 · names with fewer than 3 bearers in a canton are not published.
Nearby in the index
Surnames next to Gastaldi.
- Gasser 2,952 · U.S. census
- Gassert 612 · U.S. census
- Gassmann 542 · U.S. census
- Gassner 981 · U.S. census
- Gasson 282 · U.S. census
- Gast 4,415 · U.S. census
- Gastel 222 · U.S. census
- Gastin 156 · U.S. census
- Gastineau 1,086 · U.S. census
- Gaston 18,348 · U.S. census
- Gat 130 · U.S. census
- Gate 163 · U.S. census
When the index is not enough
This page says where Gastaldi 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.