The Gex surname
In the 2000 U.S. Census, 186 people carried this name — #91,801 among all U.S. surnames, about 1 in every 1,428,600 people counted.
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In Switzerland’s population statistics
410 people named Gex live in Switzerland.
They live in 7 of Switzerland’s 26 cantons, most of all in Valais.
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 200 people named Gex.
18 of them were born outside France. Those born in France came from 25 départements, most often Haute-Savoie.
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.
Nearby in the index
Surnames next to Gex.
When the index is not enough
This page says where Gex 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.