The Gassmann surname
In the 2010 U.S. Census, 599 people carried this name — #37,229 among all U.S. surnames, about 1 in every 500,000 people counted. That is up 11% from 542 in 2000.
In Switzerland’s population statistics
1,695 people named Gassmann live in Switzerland.
They live in 24 of Switzerland’s 26 cantons, most of all in Zurich.
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/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
In Argentina’s national register
At least 1,415 people named Gassmann 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 Entre Ríos.
Where it concentrates, on the mapWhere they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In France’s civil register
France’s register of deaths holds 611 people named Gassmann.
32 of them were born outside France. Those born in France came from 36 départements, most often Haut-Rhin.
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.
Nearby in the index
Surnames next to Gassmann.
- Gasperini 364 · U.S. census
- Gasperoni 179 · U.S. census
- Gasque 1,194 · U.S. census
- Gass 6,818 · U.S. census
- Gasser 3,024 · U.S. census
- Gassert 470 · U.S. census
- Gassner 987 · U.S. census
- Gasson 300 · U.S. census
- Gast 4,612 · U.S. census
- Gastaldi 129 · U.S. census
- Gastel 242 · U.S. census
- Gastin 135 · U.S. census
When the index is not enough
This page says where Gassmann 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.