The Duplessy surname
In the 2010 U.S. Census, 181 people carried this name — #99,845 among all U.S. surnames, about 1 in every 1,666,700 people counted. That is up 34% from 135 in 2000.
In France’s civil register
France’s register of deaths holds 416 people named Duplessy.
5 of them were born outside France. Those born in France came from 43 départements, most often Seine-Maritime.
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 59 people named Duplessy 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.
Nearby in the index
Surnames next to Duplessy.
- Dupey 224 · U.S. census
- Dupin 558 · U.S. census
- Duplain 215 · U.S. census
- Duplan 234 · U.S. census
- Duplantier 356 · U.S. census
- Duplessis 3,044 · U.S. census
- Dupon 131 · U.S. census
- Dupont 10,339 · U.S. census
- Dupoux 160 · U.S. census
- Dupras 846 · U.S. census
- Duprat 202 · U.S. census
- Dupray 150 · U.S. census
When the index is not enough
This page says where Duplessy 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.