The Cassier surname
In the 2000 U.S. Census, 105 people carried this name — #144,908 among all U.S. surnames, about 1 in every 2,500,000 people counted.
In France’s civil register
France’s register of deaths holds 799 people named Cassier.
4 of them were born outside France. Those born in France came from 53 départements, most often Paris.
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 58 people named Cassier 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 East 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 Cassier.
- Cassaro 534 · U.S. census
- Cassat 110 · U.S. census
- Casse 272 · U.S. census
- Cassel 4,851 · U.S. census
- Cassen 144 · U.S. census
- Cassi 134 · U.S. census
- Cassiere 198 · U.S. census
- Cassim 134 · U.S. census
- Cassin 829 · U.S. census
- Cassinelli 503 · U.S. census
- Cassini 267 · U.S. census
- Casson 2,056 · U.S. census
When the index is not enough
This page says where Cassier 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.