The Thao surname
In the 2000 U.S. Census, 15,463 people carried this name — #2,153 among all U.S. surnames, about 1 in every 17,500 people counted.
In France’s civil register
France’s register of deaths holds 91 people named Thao.
Most of them — 70 — were born outside France. Those born in France came from 8 départements, most often Finistère.
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 Thao.
When the index is not enough
This page says where Thao 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.