The Cosson surname
In the 2000 U.S. Census, 386 people carried this name — #50,801 among all U.S. surnames, about 1 in every 714,300 people counted.
In France’s civil register
France’s register of deaths holds 2,802 people named Cosson.
16 of them were born outside France. Those born in France came from 78 départements, most often Côtes-d’Armor.
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
28 people named Cosson live in Switzerland.
They live in 3 of Switzerland’s 26 cantons, most of all in Vaud.
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 Cosson.
- Cosma 498 · U.S. census
- Cosme 4,140 · U.S. census
- Cossa 205 · U.S. census
- Cossart 102 · U.S. census
- Cosse 350 · U.S. census
- Cossin 474 · U.S. census
- Cossu 143 · U.S. census
- Costa 35,227 · U.S. census
- Costagliola 385 · U.S. census
- Costantini 1,023 · U.S. census
- Costantino 3,028 · U.S. census
- Costanza 3,242 · U.S. census
When the index is not enough
This page says where Cosson 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.