The Grosz surname
In the 2010 U.S. Census, 1,573 people carried this name — #17,798 among all U.S. surnames, about 1 in every 188,700 people counted. That is down 2% from 1,597 in 2000.
In Poland’s population register
607 people named Grosz have a registered home in Poland.
Of the 777 in Poland’s national register, these are the ones with a permanent address on file. They live in 12 of Poland’s 16 voivodeships, most of all in Warmian-Masurian.
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 114 people named Grosz.
28 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.
In Argentina’s national register
At least 86 people named Grosz live in Argentina.
RENAPER only publishes a name in a province when more than ten people there share it, so the real number is higher. Most of them live in Buenos Aires Province.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In Belgium’s population register
At least 54 people named Grosz 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 Antwerp.
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 Switzerland’s population statistics
26 people named Grosz live in Switzerland.
They live in 3 of Switzerland’s 26 cantons, most of all in Zurich.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
Who carried it
People named Grosz,
with a public archive behind them.
-
Ernő Magos d. 1855 · writer
-
Karl Grosz 1838–1916 · writer
-
Karl Grosz 1838–1916 · writer
-
Hanni Grosz 1858–
-
Sali Grosz 1860–1942
-
Sara Wisch 1860–1943
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Grosz.
- Grosse 2,124 · U.S. census
- Grosser 1,049 · U.S. census
- Grosshans 488 · U.S. census
- Grossi 2,657 · U.S. census
- Grossmann 1,322 · U.S. census
- Grosso 4,069 · U.S. census
- Grotzinger 199 · U.S. census
- Grout 2,022 · U.S. census
- Groux 187 · U.S. census
- Grub 195 · U.S. census
- Gruber 14,131 · U.S. census
- Grudzien 450 · U.S. census
When the index is not enough
This page says where Grosz 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.