The Guillemin surname
In the 2000 U.S. Census, 108 people carried this name — #141,788 among all U.S. surnames, about 1 in every 2,500,000 people counted.
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In France’s civil register
France’s register of deaths holds 5,243 people named Guillemin.
63 of them were born outside France. Those born in France came from 89 départements, most often Saône-et-Loire.
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
197 people named Guillemin live in Switzerland.
They live in 7 of Switzerland’s 26 cantons, most of all in Vaud.
Where it concentrates, on the mapWhere 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 Belgium’s population register
At least 30 people named Guillemin 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 West Flanders.
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.
Nearby in the index
Surnames next to Guillemin.
- Guiliani 308 · U.S. census
- Guiliano 762 · U.S. census
- Guillard 229 · U.S. census
- Guillaume 2,451 · U.S. census
- Guille 189 · U.S. census
- Guillemette 978 · U.S. census
- Guillen 21,257 · U.S. census
- Guillermo 2,469 · U.S. census
- Guillet 537 · U.S. census
- Guilliot 116 · U.S. census
- Guillory 14,351 · U.S. census
- Guillot 4,371 · U.S. census
When the index is not enough
This page says where Guillemin 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.