The Grzegorczyk surname
In the 2010 U.S. Census, 366 people carried this name — #55,962 among all U.S. surnames, about 1 in every 833,300 people counted. That is up 14% from 320 in 2000.
In Poland’s population register
9,610 people named Grzegorczyk have a registered home in Poland.
Of the 10,462 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 Lublin.
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 81 people named Grzegorczyk.
27 of them were born outside France. Those born in France came from 11 départements, most often Pas-de-Calais.
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.
Who carried it
People named Grzegorczyk,
with a public archive behind them.
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Piotr Grzegorczyk 1894–1968 · bibliographer
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Jan Grzegorczyk 1899–1969 · trade unionist
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Władysław Grzegorczyk 1905–1981 · miner
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Helena Grzegorczyk 1918–1985
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Andrzej Grzegorczyk 1922–2014 · mathematician
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Józef Grzegorczyk 1922–2011
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Grzegorczyk.
- Grunewald 1,738 · U.S. census
- Gruninger 205 · U.S. census
- Grunwald 2,356 · U.S. census
- Gruss 730 · U.S. census
- Gruszka 636 · U.S. census
- Grutter 138 · U.S. census
- Grzelak 629 · U.S. census
- Grzesiak 398 · U.S. census
- Grzeskowiak 507 · U.S. census
- Grzyb 759 · U.S. census
- Grzybowski 1,506 · U.S. census
- Gschwind 385 · U.S. census
When the index is not enough
This page says where Grzegorczyk 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.