The Senn surname
In the 2010 U.S. Census, 5,448 people carried this name — #6,273 among all U.S. surnames, about 1 in every 54,100 people counted. That is up 3% from 5,290 in 2000.
In Switzerland’s population statistics
5,204 people named Senn live in Switzerland.
They live in all 26 of Switzerland’s cantons, most of all in Aargau.
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 1,159 people named Senn 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 Santa Fe.
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 261 people named Senn.
21 of them were born outside France. Those born in France came from 33 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.
In print
Senn in American newspapers,
1891–1909.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 48,316 pages in all carry the name.
Who carried it
People named Senn,
with a public archive behind them.
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Jean Antoine Petit-Senn 1792–1870 · writer -
Jean Antoine Petit-Senn 1792–1870 · writer
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Jean Antoine Petit-Senn 1792–1870 · writer
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Johann II. Senn von Münsingen 1350–1365 · bishop
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Michael Senn 1651–1725
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Franz Michael Senn 1759–1813
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Senn.
When the index is not enough
This page says where Senn 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.