Jach surname: U.S. census count, rank and records | FamilyCrests

The Jach surname

In the 2010 U.S. Census, 237 people carried this name — #80,131 among all U.S. surnames, about 1 in every 1,250,000 people counted. That is down 19% from 291 in 2000.

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Where the name comes from

The origin of the Jach surname

From Polish Jach or Czech Jach.

From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Jach» (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

3,417 people named Jach have a registered home in Poland.

Of the 3,725 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 Łódź.

Where it concentrates, on the map

Where they live today

Łódź 650
Holy Cross 474
Lower Silesian 366
Masovian 279
Silesian 276
Lesser Poland 248
Lublin 245
Pomeranian 217

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 63 people named Jach.

14 of them were born outside France. Those born in France came from 17 départements, most often Lot.

Too few records to say where it concentrates region by region — these are plain counts, not shares.

Where they were born

Born outside France 14
Lot 18
Dordogne 8
Paris 3
Pas-de-Calais 3
Meurthe-et-Moselle 3
Corrèze 2
Cantal 2
Var 1

Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.

In the Nordic population registers

30 people named Jach is counted in Sweden.

Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published.

Counted, by country

Sweden (2022) 30

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).

Who carried it

People named Jach,
with a public archive behind them.

  • Ludwik Jach 1921–1980
  • Fredy Jach 1922–
  • Joseph Jach 1929– · nuclear chemist
  • Karol Jach 1947– · engineer
  • Zdzisława Kornacewicz-Jach 1950–2020 · physician
  • Michał Jach 1951– · politician

Wikidata (CC0) · 9 lives in all are documented under this name.

Nearby in the index

Surnames next to Jach.

When the index is not enough

This page says where Jach 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.

See what a volume holds
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