The Ain surname
In the 2000 U.S. Census, 202 people carried this name — #85,996 among all U.S. surnames, about 1 in every 1,428,600 people counted.
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In France’s civil register
France’s register of deaths holds 86 people named Ain.
3 of them were born outside France. Those born in France came from 16 départements, most often Hérault.
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 Ain.
When the index is not enough
This page says where Ain 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.