The Lerch surname
In the 2010 U.S. Census, 3,674 people carried this name — #8,911 among all U.S. surnames, about 1 in every 80,000 people counted. About the same as in 2000 (3,685).
In Switzerland’s population statistics
1,666 people named Lerch live in Switzerland.
They live in 23 of Switzerland’s 26 cantons, most of all in Bern.
Where it concentrates, on the mapWhere 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 France’s civil register
France’s register of deaths holds 619 people named Lerch.
13 of them were born outside France. Those born in France came from 54 départements, most often Bas-Rhin.
Where it concentrates, on the mapWhere they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In Poland’s population register
387 people named Lerch have a registered home in Poland.
Of the 564 in Poland’s national register, these are the ones with a permanent address on file. They live in 11 of Poland’s 16 voivodeships, most of all in Silesian.
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 Argentina’s national register
At least 103 people named Lerch 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 Entre Ríos.
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 26 people named Lerch 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 the Nordic population registers
20 people named Lerch 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
Lerch in American newspapers,
1900–1915.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 16,479 pages in all carry the name.
Who carried it
People named Lerch,
with a public archive behind them.
-
Caspar IV. Lerch 1575–1642 · jurist -
Peter Ivanovich Lerch 1827–1884 · orientalist -
Peter Ivanovich Lerch 1828–1884 · orientalist
-
Leo Lerch 1856–1892 · painter -
Malte Lerch d. 2000
-
Martin Lerch 1465–1538 · mintmaster
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Lerch.
- Leport 147 · U.S. census
- Leppert 2,030 · U.S. census
- Lepre 683 · U.S. census
- Leprevost 115 · U.S. census
- Lepri 187 · U.S. census
- Leray 305 · U.S. census
- Lerche 304 · U.S. census
- Lere 105 · U.S. census
- Lerebours 166 · U.S. census
- Leriche 406 · U.S. census
- Lerner 7,672 · U.S. census
- Lerouge 188 · U.S. census
When the index is not enough
This page says where Lerch 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.