The Iwanski surname

In the 2000 U.S. Census, 882 people carried this name — #26,104 among all U.S. surnames, about 1 in every 303,000 people counted.

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In Poland’s population register

6,893 people named Iwanski have a registered home in Poland.

Of the 7,729 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 Masovian.

Where it concentrates, on the map

Where they live today

Masovian 1,717

Lesser Poland 777

Łódź 558

Lower Silesian 464

Silesian 462

Greater Poland 431

Holy Cross 418

Pomeranian 415

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 53 people named Iwanski.

15 of them were born outside France. Those born in France came from 8 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

Born outside France 15

Pas-de-Calais 22

Nord 4

Moselle 3

Somme 3

Ardennes 2

Ille-et-Vilaine 2

Aisne 1

Paris 1

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 Iwanski.

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