The Ratajczyk surname
In the 2010 U.S. Census, 395 people carried this name — #52,482 among all U.S. surnames, about 1 in every 769,200 people counted. That is up 5% from 377 in 2000.
In Poland’s population register
5,662 people named Ratajczyk have a registered home in Poland.
Of the 6,200 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 Greater 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 89 people named Ratajczyk.
29 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.
In the Nordic population registers
20 people named Ratajczyk 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).
Who carried it
People named Ratajczyk,
with a public archive behind them.
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Piotr Ratajczyk 1904–
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Leon Ratajczyk 1908–1945
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Henryk Ratajczyk 1913–1945
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Leonard Ratajczyk 1928– · military officer
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Jerzy Ratajczyk 1929–2006 · teacher
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Eugeniusz Ratajczyk 1933– · engineer
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Ratajczyk.
- Rassier 242 · U.S. census
- Rastelli 429 · U.S. census
- Rastello 137 · U.S. census
- Rat 113 · U.S. census
- Rata 143 · U.S. census
- Ratajczak 1,286 · U.S. census
- Rateau 223 · U.S. census
- Ratel 169 · U.S. census
- Rath 6,747 · U.S. census
- Ratte 336 · U.S. census
- Ratti 1,326 · U.S. census
- Rattin 138 · U.S. census
When the index is not enough
This page says where Ratajczyk 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.