The Serio surname
In the 2000 U.S. Census, 3,202 people carried this name — #9,340 among all U.S. surnames, about 1 in every 84,000 people counted.
In Switzerland’s population statistics
111 people named Serio live in Switzerland.
They live in 9 of Switzerland’s 26 cantons, most of all in Zurich.
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 85 people named Serio.
Most of them — 67 — were born outside France. Those born in France came from 11 départements, most often Essonne.
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 Serio.
- Sergent 2,860 · U.S. census
- Sergi 1,139 · U.S. census
- Sergio 771 · U.S. census
- Seri 169 · U.S. census
- Serie 266 · U.S. census
- Serin 117 · U.S. census
- Serna 19,751 · U.S. census
- Sero 277 · U.S. census
- Seron 132 · U.S. census
- Seropian 177 · U.S. census
- Serpe 562 · U.S. census
- Serra 5,522 · U.S. census
When the index is not enough
This page says where Serio 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.