The Seitz surname
In the 2010 U.S. Census, 12,630 people carried this name — #2,855 among all U.S. surnames, about 1 in every 23,400 people counted. That is up 2% from 12,375 in 2000.
In Switzerland’s population statistics
962 people named Seitz live in Switzerland.
They live in 20 of Switzerland’s 26 cantons, most of all in St. Gallen.
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 473 people named Seitz 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 Buenos Aires Province.
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 385 people named Seitz.
35 of them were born outside France. Those born in France came from 36 départements, most often Bas-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 Poland’s population register
41 people named Seitz have a registered home in Poland.
Of the 83 in Poland’s national register, these are the ones with a permanent address on file. They live in 9 of Poland’s 16 voivodeships, most of all in Lesser Poland.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.
In the Nordic population registers
145 people named Seitz are counted in Finland and Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published. Finland counts its citizens, at home or abroad.
Counted, by country
Own calculations based on data from Statistics Sweden (SCB), surnames with at least two bearers, 31 December 2022 — CC BY 4.0 (names with 20 or more bearers shown) · Digital and Population Data Services Agency (DVV), Finland, surname statistics, August 2026 — CC BY 4.0.
In print
Seitz in American newspapers,
1919–1921.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 37,152 pages in all carry the name.
Who carried it
People named Seitz,
with a public archive behind them.
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Paul Seitz d. 1629 · teacher
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Heirich Balthasar Andreas von Seitz d. 1772 · civil servant
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Fritz Seitz d. 1905 · entrepreneur
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Jodok Seitz d. 1471 · Catholic priest
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Wilhelm Seitz d. 1926 · flying ace
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Johann Christian Seitz d. 1735 · theologian
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Seitz.
- Seigler 2,665 · U.S. census
- Seigneur 142 · U.S. census
- Seiler 8,170 · U.S. census
- Seilhan 131 · U.S. census
- Sein 755 · U.S. census
- Seiter 1,986 · U.S. census
- Seivert 491 · U.S. census
- Seiwert 429 · U.S. census
- Sekula 966 · U.S. census
- Selig 2,020 · U.S. census
- Seligmann 174 · U.S. census
- Selin 736 · U.S. census
When the index is not enough
This page says where Seitz 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.