The Planchon surname
In the 2010 U.S. Census, 205 people carried this name — #90,113 among all U.S. surnames, about 1 in every 1,428,600 people counted. About the same as in 2000 (205).
In France’s civil register
France’s register of deaths holds 1,894 people named Planchon.
26 of them were born outside France. Those born in France came from 74 départements, most often Seine-Maritime.
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 Belgium’s population register
At least 96 people named Planchon live in Belgium.
Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in Hainaut.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In Argentina’s national register
At least 46 people named Planchon live in Argentina.
RENAPER only publishes a name in a province when more than ten people there share it, so the real number is higher. Most of them live in Buenos Aires Province.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In Switzerland’s population statistics
22 people named Planchon live in Switzerland.
They live in 4 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/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
Nearby in the index
Surnames next to Planchon.
- Plan 199 · U.S. census
- Plana 255 · U.S. census
- Planas 1,319 · U.S. census
- Planchard 140 · U.S. census
- Planche 129 · U.S. census
- Plancher 168 · U.S. census
- Plancon 107 · U.S. census
- Plane 387 · U.S. census
- Planes 176 · U.S. census
- Plano 327 · U.S. census
- Plante 7,744 · U.S. census
- Plantier 285 · U.S. census
When the index is not enough
This page says where Planchon 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.