The Lamarche surname
In the 2010 U.S. Census, 2,077 people carried this name — #14,392 among all U.S. surnames, about 1 in every 142,900 people counted. That is up 7% from 1,933 in 2000.
In France’s civil register
France’s register of deaths holds 1,533 people named Lamarche.
47 of them were born outside France. Those born in France came from 86 départements, most often Paris.
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 Argentina’s national register
At least 123 people named Lamarche 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 108 people named Lamarche 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 Liège.
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
24 people named Lamarche live in Switzerland.
They live in 4 of Switzerland’s 26 cantons, most of all in Geneva.
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 print
Lamarche in American newspapers,
1904–1914.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 1,735 pages in all carry the name.
Who carried it
People named Lamarche,
with a public archive behind them.
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Ulric Lamarche 1867–1921 · illustrator -
Hippolyte Lamarche 1789–1860 · journalist
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Oscar Lamarche 1836–1902 · photographer
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Charles Lamarche 1850–1909 · politician
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Marcolin-Antonio Lamarche 1876–1950 · writer
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Paul-Émile Lamarche 1881–1918 · lawyer
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Lamarche.
- Lam 55,554 · U.S. census
- Lama 2,958 · U.S. census
- Lamaire 129 · U.S. census
- Lamal 106 · U.S. census
- Lamanna 2,932 · U.S. census
- Lamarca 1,723 · U.S. census
- Lamare 177 · U.S. census
- Lamarque 508 · U.S. census
- Lamarre 2,227 · U.S. census
- Lamartiniere 206 · U.S. census
- Lamas 5,621 · U.S. census
- Lamay 1,835 · U.S. census
When the index is not enough
This page says where Lamarche 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.