The Banasiak surname
In the 2000 U.S. Census, 570 people carried this name — #36,917 among all U.S. surnames, about 1 in every 476,200 people counted.
In Poland’s population register
9,881 people named Banasiak have a registered home in Poland.
Of the 10,745 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 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 67 people named Banasiak.
30 of them were born outside France. Those born in France came from 13 départements, most often Seine-et-Marne.
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 Banasiak.
- Bamberger 1,118 · U.S. census
- Ban 1,546 · U.S. census
- Bana 298 · U.S. census
- Banach 2,009 · U.S. census
- Banal 179 · U.S. census
- Banas 2,856 · U.S. census
- Banaszak 1,179 · U.S. census
- Bance 160 · U.S. census
- Banco 189 · U.S. census
- Banda 10,954 · U.S. census
- Bandel 568 · U.S. census
- Bandiera 110 · U.S. census
When the index is not enough
This page says where Banasiak 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.