The Klos surname
In the 2000 U.S. Census, 2,241 people carried this name — #12,657 among all U.S. surnames, about 1 in every 120,500 people counted.
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In Poland’s population register
11,767 people named Klos have a registered home in Poland.
Of the 13,065 in Poland’s national register, these are the ones with a permanent address on file. They live in all 16 of Poland’s voivodeships, most of all in Masovian.
Where it concentrates, on the mapWhere 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 France’s civil register
France’s register of deaths holds 102 people named Klos.
34 of them were born outside France. Those born in France came from 17 départements, most often Moselle.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where 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
36 people named Klos live in Switzerland.
They live in 5 of Switzerland’s 26 cantons, most of all in Bern.
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.
Nearby in the index
Surnames next to Klos.
- Klipfel 523 · U.S. census
- Klock 2,479 · U.S. census
- Klonowski 630 · U.S. census
- Klop 137 · U.S. census
- Klopfenstein 1,498 · U.S. census
- Klopp 2,112 · U.S. census
- Klosowski 737 · U.S. census
- Kloster 1,504 · U.S. census
- Klotz 6,027 · U.S. census
- Klug 6,023 · U.S. census
- Klumpp 1,209 · U.S. census
- Kmiec 1,002 · U.S. census
When the index is not enough
This page says where Klos 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.