The Clausen surname
In the 2000 U.S. Census, 8,895 people carried this name — #3,668 among all U.S. surnames, about 1 in every 30,300 people counted.
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In Switzerland’s population statistics
548 people named Clausen live in Switzerland.
They live in 16 of Switzerland’s 26 cantons, most of all in Valais.
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 France’s civil register
France’s register of deaths holds 51 people named Clausen.
11 of them were born outside France. Those born in France came from 7 départements, most often Nord.
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 Clausen.
- Claude 1,789 · U.S. census
- Claudio 5,263 · U.S. census
- Claudy 217 · U.S. census
- Claus 3,620 · U.S. census
- Clause 1,273 · U.S. census
- Clausel 145 · U.S. census
- Clauson 2,228 · U.S. census
- Clauss 1,837 · U.S. census
- Clave 119 · U.S. census
- Claveau 174 · U.S. census
- Clavel 660 · U.S. census
- Clavelle 222 · U.S. census
When the index is not enough
This page says where Clausen 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.