The Jansen surname
In the 2010 U.S. Census, 16,596 people carried this name — #2,189 among all U.S. surnames, about 1 in every 17,800 people counted. That is up 3% from 16,036 in 2000.
Where the name comes from
The origin of the Jansen surname
Through immigration from Dutch Jansen.
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Jansen» (English), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Belgium’s population register
At least 4,874 people named Jansen 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 Antwerp.
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 Switzerland’s population statistics
539 people named Jansen live in Switzerland.
They live in 19 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 France’s civil register
France’s register of deaths holds 397 people named Jansen.
115 of them were born outside France. Those born in France came from 34 départements, most often Nord.
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 164 people named Jansen 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.
Where it concentrates, on the mapWhere they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In Poland’s population register
108 people named Jansen have a registered home in Poland.
Of the 271 in Poland’s national register, these are the ones with a permanent address on file. They live in all 16 of Poland’s voivodeships, most of all in Lower 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 the Nordic population registers
3,619 people named Jansen are counted in Norway, Sweden and Finland.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published. Norway publishes only surnames with 200 or more bearers. Finland counts its citizens, at home or abroad.
Counted, by country
Own calculations based on data from Statistics Sweden (SCB), surnames with at least two bearers, 31 December 2022 — CC BY 4.0 (names with 20 or more bearers shown) · Statistics Norway (SSB, ssb.no), table 12891, 2025 — CC BY 4.0 · Digital and Population Data Services Agency (DVV), Finland, surname statistics, August 2026 — CC BY 4.0.
In print
Jansen in American newspapers,
1848–1931.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 67,777 pages in all carry the name.
Who carried it
People named Jansen,
with a public archive behind them.
-
Cornelius Jansen 1510–1576 · bishop -
Joannes Coenraad Jansen 1840–1925 · politician -
Herman Gerard Jansen 1859–1934 · architect -
Henricus Jansen 1867–1921 · illustrator -
Harry August Jansen 1883–1955 · magician
Wikidata and Wikimedia Commons (CC0) · 194 lives in all are documented under this name.
Nearby in the index
Surnames next to Jansen.
- Jankowski 8,970 · U.S. census
- Janky 118 · U.S. census
- Jannetta 154 · U.S. census
- Janny 134 · U.S. census
- Janowski 2,047 · U.S. census
- Jans 983 · U.S. census
- Janson 3,930 · U.S. census
- Janssen 11,423 · U.S. census
- Janssens 557 · U.S. census
- Janton 139 · U.S. census
- Jantzen 1,590 · U.S. census
- Janus 2,172 · U.S. census
When the index is not enough
This page says where Jansen 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.