The Portmann surname
In the 2010 U.S. Census, 341 people carried this name — #59,324 among all U.S. surnames, about 1 in every 833,300 people counted. That is up 20% from 284 in 2000.
In Switzerland’s population statistics
4,888 people named Portmann live in Switzerland.
They live in all 26 of Switzerland’s cantons, most of all in Lucerne.
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 France’s civil register
France’s register of deaths holds 257 people named Portmann.
14 of them were born outside France. Those born in France came from 29 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 Argentina’s national register
At least 97 people named Portmann 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.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
Who carried it
People named Portmann,
with a public archive behind them.
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Johann Gottlieb Portmann 1739–1798 · composer
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Caroline Schneider 1774–1850 · actor
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Caroline Schneider 1774–1850 · actor
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Wilhelm Porttmann 1819–1893 · painter
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Mina Portmann 1871–1942
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Robert Portmann 1871–1958
Wikidata (CC0) · 9 lives in all are documented under this name.
Nearby in the index
Surnames next to Portmann.
- Porter 163,054 · U.S. census
- Porterie 122 · U.S. census
- Portes 686 · U.S. census
- Portie 182 · U.S. census
- Portier 733 · U.S. census
- Portillo 37,890 · U.S. census
- Porto 3,526 · U.S. census
- Portugal 2,263 · U.S. census
- Porzio 660 · U.S. census
- Pose 275 · U.S. census
- Poser 448 · U.S. census
- Poss 3,209 · U.S. census
When the index is not enough
This page says where Portmann 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.