The Ignaczak surname
In the 2010 U.S. Census, 135 people carried this name — #126,765 among all U.S. surnames, about 1 in every 2,000,000 people counted. That is up 16% from 116 in 2000.
In Poland’s population register
3,112 people named Ignaczak have a registered home in Poland.
Of the 3,437 in Poland’s national register, these are the ones with a permanent address on file. They live in 15 of Poland’s 16 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 56 people named Ignaczak.
14 of them were born outside France. Those born in France came from 11 départements, most often Moselle.
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.
Nearby in the index
Surnames next to Ignaczak.
When the index is not enough
This page says where Ignaczak 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.