The Ratajczak surname
In the 2010 U.S. Census, 1,286 people carried this name — #20,601 among all U.S. surnames, about 1 in every 227,300 people counted. That is up 6% from 1,211 in 2000.
In Poland’s population register
15,711 people named Ratajczak have a registered home in Poland.
Of the 17,102 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 438 people named Ratajczak.
134 of them were born outside France. Those born in France came from 21 départements, most often Pas-de-Calais.
Where it concentrates, on the mapWhere they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In Belgium’s population register
At least 24 people named Ratajczak 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
32 people named Ratajczak 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 Ratajczak,
with a public archive behind them.
-
Józef Ratajczak 1897–1942 · military officer -
Henryk Ratajczak 1932– · chemist -
Marek Ratajczak 1954– · economist -
Janusz Ratajczak 1962–2026 · musician -
Leszek Ratajczak 1968– · journalist
Wikidata and Wikimedia Commons (CC0) · 68 lives in all are documented under this name.
Nearby in the index
Surnames next to Ratajczak.
- Rasset 132 · U.S. census
- 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
- Ratajczyk 395 · 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
When the index is not enough
This page says where Ratajczak 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.