The Sen surname
In the 2000 U.S. Census, 1,969 people carried this name — #14,044 among all U.S. surnames, about 1 in every 137,000 people counted.
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In Switzerland’s population statistics
646 people named Sen live in Switzerland.
They live in 20 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 · names with fewer than 3 bearers in a canton are not published.
In Belgium’s population register
At least 524 people named Sen 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 Brussels-Capital.
Where it concentrates, on the mapWhere they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In Poland’s population register
393 people named Sen have a registered home in Poland.
Of the 848 in Poland’s national register, these are the ones with a permanent address on file. They live in 14 of Poland’s 16 voivodeships, most of all in Lublin.
Where it concentrates, on the mapWhere 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 France’s civil register
France’s register of deaths holds 130 people named Sen.
Most of them — 89 — were born outside France. Those born in France came from 22 départements, most often Martinique.
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 print
Sen in American newspapers,
1896–1922.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 5,218,689 pages in all carry the name.
Who carried it
People named Sen,
with a public archive behind them.
-
Ramprasad Sen 1718–1775 · writer -
Keshub Chunder Sen 1838–1884 · public figure -
Ramdas Sen 1845–1887 · writer -
Suniti Devi 1864–1932 · writer -
Dinesh Chandra Sen 1866–1939 · writer
Wikidata and Wikimedia Commons (CC0) · 96 lives in all are documented under this name.
Nearby in the index
Surnames next to Sen.
- Semedo 346 · U.S. census
- Semel 455 · U.S. census
- Semerdjian 210 · U.S. census
- Semin 123 · U.S. census
- Semon 1,623 · U.S. census
- Semper 512 · U.S. census
- Sena 6,825 · U.S. census
- Senac 151 · U.S. census
- Senart 100 · U.S. census
- Senat 501 · U.S. census
- Senatore 843 · U.S. census
- Senay 379 · U.S. census
When the index is not enough
This page says where Sen 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.