The Defer surname

In the 2000 U.S. Census, 303 people carried this name — #61,855 among all U.S. surnames, about 1 in every 909,100 people counted.

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In France’s civil register

France’s register of deaths holds 934 people named Defer.

10 of them were born outside France. Those born in France came from 48 départements, most often Nord.

Where it concentrates, on the map

Where they were born

Born outside France 10

Nord 234

Paris 116

Pas-de-Calais 106

Vosges 50

Somme 46

Seine-et-Marne 43

Meuse 39

Meurthe-et-Moselle 37

Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.

In Belgium’s population register

At least 106 people named Defer 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 Hainaut.

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

Where they live today

Hainaut 48

West Flanders 21

Namur 19

Flemish Brabant 7

East Flanders 6

Liège 5

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

Nearby in the index

Surnames next to Defer.

When the index is not enough

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