The Castello surname
In the 2000 U.S. Census, 3,140 people carried this name — #9,495 among all U.S. surnames, about 1 in every 86,200 people counted.
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In France’s civil register
France’s register of deaths holds 530 people named Castello.
211 of them were born outside France. Those born in France came from 43 départements, most often Pyrénées-Orientales.
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
85 people named Castello live in Switzerland.
They live in 9 of Switzerland’s 26 cantons, most of all in Geneva.
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 Castello.
- Castellani 751 · U.S. census
- Castellano 9,732 · U.S. census
- Castellanos 20,985 · U.S. census
- Castelli 3,176 · U.S. census
- Castellini 351 · U.S. census
- Castellino 173 · U.S. census
- Castellon 5,557 · U.S. census
- Castells 161 · U.S. census
- Castellucci 687 · U.S. census
- Caster 3,065 · U.S. census
- Castiglia 1,078 · U.S. census
- Castiglione 2,039 · U.S. census
When the index is not enough
This page says where Castello 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.