The Jacomet surname
In the 2010 U.S. Census, 229 people carried this name — #82,317 among all U.S. surnames, about 1 in every 1,250,000 people counted. That is up 9% from 211 in 2000.
In France’s civil register
France’s register of deaths holds 250 people named Jacomet.
4 of them were born outside France. Those born in France came from 32 départements, most often Hautes-Pyrénées.
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 Switzerland’s population statistics
248 people named Jacomet live in Switzerland.
They live in 15 of Switzerland’s 26 cantons, most of all in Zurich.
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 Argentina’s national register
At least 27 people named Jacomet 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 print
Jacomet in American newspapers,
1912.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 218 pages in all carry the name.
Nearby in the index
Surnames next to Jacomet.
- Jacobe 519 · U.S. census
- Jacobelli 161 · U.S. census
- Jacobi 3,563 · U.S. census
- Jacobs 118,614 · U.S. census
- Jacobson 44,808 · U.S. census
- Jacoby 9,372 · U.S. census
- Jacomino 177 · U.S. census
- Jacot 670 · U.S. census
- Jacquard 126 · U.S. census
- Jacquart 292 · U.S. census
- Jacque 642 · U.S. census
- Jacqueline 118 · U.S. census
When the index is not enough
This page says where Jacomet 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.