Willem surname: U.S. census count, rank and records | FamilyCrests

The Willem surname

In the 2010 U.S. Census, 242 people carried this name — #78,821 among all U.S. surnames, about 1 in every 1,250,000 people counted. That is down 6% from 257 in 2000.

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In Belgium’s population register

At least 1,059 people named Willem 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.

Where it concentrates, on the map

Where they live today

West Flanders 389
Liège 232
Namur 192
Hainaut 120
Antwerp 37
Luxembourg Province 32
East Flanders 20
Flemish Brabant 16

Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.

In France’s civil register

France’s register of deaths holds 477 people named Willem.

19 of them were born outside France. Those born in France came from 33 départements, most often Nord.

Where it concentrates, on the map

Where they were born

Born outside France 19
Nord 192
Bas-Rhin 87
Moselle 37
Pas-de-Calais 26
Haut-Rhin 20
Paris 14
Côtes-d’Armor 9
Ardennes 9

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 58 people named Willem 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 San Luis.

Too few records to say where it concentrates region by region — these are plain counts, not shares.

Where they live today

San Luis 43
Buenos Aires Province 15

RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.

In Poland’s population register

23 people named Willem have a registered home in Poland.

Of the 30 in Poland’s national register, these are the ones with a permanent address on file. They live in 1 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

Silesian 23

PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.

Who carried it

People named Willem,
with a public archive behind them.

  • Joseph Willem
    Joseph Willem 1840–1914
  • Alexis Willem 1839– · politician
  • Victor Willem 1866–1952 · zoologist
  • Jean-Pierre Willem 1938– · physician
  • Michel Willem 1953– · mathematician
  • Étienne Willem 1972–2024 · comics artist

Wikidata and Wikimedia Commons (CC0) · 9 lives in all are documented under this name.

Nearby in the index

Surnames next to Willem.

When the index is not enough

This page says where Willem 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.

See what a volume holds
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