The Decock surname
In the 2000 U.S. Census, 413 people carried this name — #48,109 among all U.S. surnames, about 1 in every 666,700 people counted.
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In Belgium’s population register
At least 2,615 people named Decock 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 mapWhere they live today
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 525 people named Decock.
45 of them were born outside France. Those born in France came from 30 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.
Nearby in the index
Surnames next to Decock.
- Deck 5,709 · U.S. census
- Decker 54,450 · U.S. census
- Deckers 165 · U.S. census
- Deckert 1,911 · U.S. census
- Declerck 476 · U.S. census
- Declercq 472 · U.S. census
- Decocq 118 · U.S. census
- Deconinck 194 · U.S. census
- Decorte 499 · U.S. census
- Decory 145 · U.S. census
- Decosse 153 · U.S. census
- Decoster 1,039 · U.S. census
When the index is not enough
This page says where Decock 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.