The Marenghi surname
In the 2010 U.S. Census, 161 people carried this name — #109,758 among all U.S. surnames, about 1 in every 2,000,000 people counted. About the same as in 2000 (161).
In France’s civil register
France’s register of deaths holds 60 people named Marenghi.
9 of them were born outside France. Those born in France came from 10 départements, most often Corsica.
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 58 people named Marenghi 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 City of Buenos Aires.
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
35 people named Marenghi live in Switzerland.
They live in 3 of Switzerland’s 26 cantons, most of all in Ticino.
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 · names with fewer than 3 bearers in a canton are not published.
Nearby in the index
Surnames next to Marenghi.
- Marechal 134 · U.S. census
- Maree 388 · U.S. census
- Marek 8,042 · U.S. census
- Marelli 272 · U.S. census
- Marenco 1,595 · U.S. census
- Marenda 112 · U.S. census
- Marengo 685 · U.S. census
- Mares 14,931 · U.S. census
- Maresca 1,849 · U.S. census
- Mareschal 100 · U.S. census
- Maret 410 · U.S. census
- Marette 122 · U.S. census
When the index is not enough
This page says where Marenghi 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.