The Koza surname
In the 2010 U.S. Census, 1,469 people carried this name — #18,703 among all U.S. surnames, about 1 in every 200,000 people counted. About the same as in 2000 (1,476).
In Poland’s population register
6,593 people named Koza have a registered home in Poland.
Of the 7,197 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 Silesian.
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 134 people named Koza.
42 of them were born outside France. Those born in France came from 26 départements, most often Aisne.
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 Argentina’s national register
At least 39 people named Koza 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.
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.
In print
Koza in American newspapers,
1888–1914.
Chronicling America, Library of Congress — digitised newspapers in the public domain.
Who carried it
People named Koza,
with a public archive behind them.
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Josef Koza 1869–1939 · teacher
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František Koza 1883–1942 · secondary school teacher
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Georg Koza 1887–
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František Koza 1895–1950
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Josef Koza 1897–1958 · publisher
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Pavel Koza 1917–
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Koza.
- Kowal 4,337 · U.S. census
- Kowalczyk 5,615 · U.S. census
- Kowalewski 2,718 · U.S. census
- Kowalik 1,435 · U.S. census
- Kowalska 153 · U.S. census
- Kowalski 18,077 · U.S. census
- Kozak 7,495 · U.S. census
- Koziel 801 · U.S. census
- Koziol 3,194 · U.S. census
- Kozlowski 10,358 · U.S. census
- Kozma 1,294 · U.S. census
- Kracher 137 · U.S. census
When the index is not enough
This page says where Koza 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.