The Jan surname
In the 2000 U.S. Census, 1,809 people carried this name — #14,995 among all U.S. surnames, about 1 in every 149,300 people counted.
In France’s civil register
France’s register of deaths holds 3,747 people named Jan.
58 of them were born outside France. Those born in France came from 64 départements, most often Morbihan.
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
447 people named Jan live in Switzerland.
They live in 12 of Switzerland’s 26 cantons, most of all in Vaud.
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 · names with fewer than 3 bearers in a canton are not published.
In Poland’s population register
73 people named Jan have a registered home in Poland.
Of the 118 in Poland’s national register, these are the ones with a permanent address on file. They live in 4 of Poland’s 16 voivodeships, most of all in Silesian.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where 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 Belgium’s population register
At least 46 people named Jan 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 West Flanders.
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.
Nearby in the index
Surnames next to Jan.
When the index is not enough
This page says where Jan 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.