The Kastner surname
In the 2000 U.S. Census, 4,047 people carried this name — #7,578 among all U.S. surnames, about 1 in every 66,700 people counted.
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In France’s civil register
France’s register of deaths holds 233 people named Kastner.
22 of them were born outside France. Those born in France came from 18 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 Switzerland’s population statistics
137 people named Kastner live in Switzerland.
They live in 11 of Switzerland’s 26 cantons, most of all in Zurich.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where 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 Poland’s population register
120 people named Kastner have a registered home in Poland.
Of the 194 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 Silesian.
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.
Nearby in the index
Surnames next to Kastner.
- Kassabian 397 · U.S. census
- Kassel 1,262 · U.S. census
- Kassem 678 · U.S. census
- Kassim 730 · U.S. census
- Kast 1,978 · U.S. census
- Kastler 485 · U.S. census
- Kaszuba 559 · U.S. census
- Katz 30,615 · U.S. census
- Kauffmann 892 · U.S. census
- Kaufman 34,786 · U.S. census
- Kaufmann 6,664 · U.S. census
- Kaupp 434 · U.S. census
When the index is not enough
This page says where Kastner 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.