The Jarosz surname
In the 2010 U.S. Census, 2,760 people carried this name — #11,415 among all U.S. surnames, about 1 in every 106,400 people counted. That is up 2% from 2,698 in 2000.
Where the name comes from
The origin of the Jarosz surname
From Polish Jarosz or, in some cases, a transliteration of Ukrainian Ярош (Jaroš).
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Jarosz» (English), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Poland’s population register
21,330 people named Jarosz have a registered home in Poland.
Of the 23,387 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 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 156 people named Jarosz.
63 of them were born outside France. Those born in France came from 23 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 Argentina’s national register
At least 53 people named Jarosz 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 Switzerland’s population statistics
41 people named Jarosz live in Switzerland.
They live in 7 of Switzerland’s 26 cantons, most of all in Aargau.
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.
In the Nordic population registers
75 people named Jarosz is counted in Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published.
Counted, by country
Own calculations based on data from Statistics Sweden (SCB), surnames with at least two bearers, 31 December 2022 — CC BY 4.0 (names with 20 or more bearers shown).
In print
Jarosz in American newspapers,
1925–1927.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 1,458 pages in all carry the name.
Nearby in the index
Surnames next to Jarosz.
- Jardin 846 · U.S. census
- Jardine 3,973 · U.S. census
- Jardon 719 · U.S. census
- Jardot 115 · U.S. census
- Jarnot 363 · U.S. census
- Jaros 1,690 · U.S. census
- Jarreau 1,402 · U.S. census
- Jarret 395 · U.S. census
- Jarrin 466 · U.S. census
- Jarry 429 · U.S. census
- Jarvis 35,350 · U.S. census
- Jary 114 · U.S. census
When the index is not enough
This page says where Jarosz 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.