The Banach surname
In the 2000 U.S. Census, 2,009 people carried this name — #13,812 among all U.S. surnames, about 1 in every 135,100 people counted.
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In Poland’s population register
12,452 people named Banach have a registered home in Poland.
Of the 13,631 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 Lesser Poland.
Where 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 122 people named Banach.
37 of them were born outside France. Those born in France came from 19 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 Switzerland’s population statistics
20 people named Banach live in Switzerland.
They live in 4 of Switzerland’s 26 cantons, most of all in Zurich.
Where they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss · names with fewer than 3 bearers in a canton are not published.
Nearby in the index
Surnames next to Banach.
- Balzano 1,283 · U.S. census
- Balzer 2,897 · U.S. census
- Bamba 450 · U.S. census
- Bamberger 1,118 · U.S. census
- Ban 1,546 · U.S. census
- Bana 298 · U.S. census
- Banal 179 · U.S. census
- Banas 2,856 · U.S. census
- Banasiak 570 · U.S. census
- Banaszak 1,179 · U.S. census
- Bance 160 · U.S. census
- Banco 189 · U.S. census
When the index is not enough
This page says where Banach 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.