The Kaczmarczyk surname
In the 2010 U.S. Census, 1,275 people carried this name — #20,739 among all U.S. surnames, about 1 in every 232,600 people counted. That is up 10% from 1,154 in 2000.
In Poland’s population register
23,315 people named Kaczmarczyk have a registered home in Poland.
Of the 25,856 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 Lesser Poland.
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 123 people named Kaczmarczyk.
46 of them were born outside France. Those born in France came from 16 départements, most often Nord.
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
35 people named Kaczmarczyk live in Switzerland.
They live in 6 of Switzerland’s 26 cantons, most of all in St. Gallen.
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/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
In Belgium’s population register
At least 23 people named Kaczmarczyk live in Belgium.
Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in Limburg.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In the Nordic population registers
81 people named Kaczmarczyk is counted in Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published.
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).
In print
Kaczmarczyk in American newspapers,
1909–1952.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 407 pages in all carry the name.
Who carried it
People named Kaczmarczyk,
with a public archive behind them.
-
Józef Kaczmarczyk 1871–1951 · Catholic priest -
Kazimierz Kaczmarczyk 1878–1966 · historian -
Alojzy Kaczmarczyk 1896–1947 · military officer -
Antoni Kaczmarczyk 1897– · military officer -
Zdzisław Kaczmarczyk 1911–1980 · historian
Wikidata and Wikimedia Commons (CC0) · 48 lives in all are documented under this name.
Nearby in the index
Surnames next to Kaczmarczyk.
- Juvenal 127 · U.S. census
- Ka 795 · U.S. census
- Kaas 620 · U.S. census
- Kaba 1,991 · U.S. census
- Kacher 274 · U.S. census
- Kaczka 255 · U.S. census
- Kaczmarek 4,052 · U.S. census
- Kaczmarski 704 · U.S. census
- Kaczor 1,711 · U.S. census
- Kaczorowski 839 · U.S. census
- Kada 212 · U.S. census
- Kader 969 · U.S. census
When the index is not enough
This page says where Kaczmarczyk 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.