The Jas surname
In the 2010 U.S. Census, 117 people carried this name — #142,108 among all U.S. surnames, about 1 in every 2,500,000 people counted. That is up 4% from 113 in 2000.
Where the name comes from
The origin of the Jas surname
Clipping of Jan + -aś.
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Jaś» (Polish), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Poland’s population register
957 people named Jas have a registered home in Poland.
Of the 1,053 in Poland’s national register, these are the ones with a permanent address on file. They live in 15 of Poland’s 16 voivodeships, most of all in Holy Cross.
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 81 people named Jas.
4 of them were born outside France. Those born in France came from 10 départements, most often Isère.
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 54 people named Jas 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 San Juan.
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.
Who carried it
People named Jas,
with a public archive behind them.
-
Ricardo Jas 1993– · alpine skier
Wikidata (CC0).
Nearby in the index
Surnames next to Jas.
- 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
- Jasiak 164 · U.S. census
- Jasinski 3,679 · U.S. census
- Jaskula 234 · U.S. census
- Jaskulski 398 · U.S. census
- Jasmin 2,064 · U.S. census
- Jason 4,048 · U.S. census
When the index is not enough
This page says where Jas 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.