The Troia surname
In the 2000 U.S. Census, 1,290 people carried this name — #19,411 among all U.S. surnames, about 1 in every 208,300 people counted.
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In Switzerland’s population statistics
67 people named Troia live in Switzerland.
They live in 9 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.
In France’s civil register
France’s register of deaths holds 61 people named Troia.
29 of them were born outside France. Those born in France came from 9 départements, most often Bouches-du-Rhône.
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.
Nearby in the index
Surnames next to Troia.
- Trivino 587 · U.S. census
- Troch 156 · U.S. census
- Troche 2,107 · U.S. census
- Troesch 229 · U.S. census
- Troester 744 · U.S. census
- Trog 104 · U.S. census
- Troisi 960 · U.S. census
- Trojan 1,268 · U.S. census
- Trojanowski 911 · U.S. census
- Trombetta 1,603 · U.S. census
- Tromp 525 · U.S. census
- Trompeter 482 · U.S. census
When the index is not enough
This page says where Troia 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.