The Dekoster surname
In the 2010 U.S. Census, 230 people carried this name — #82,044 among all U.S. surnames, about 1 in every 1,250,000 people counted. That is up 6% from 217 in 2000.
In Belgium’s population register
At least 74 people named Dekoster 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 Flemish Brabant.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where 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 63 people named Dekoster.
3 of them were born outside France. Those born in France came from 10 départements, most often Nord.
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.
Who carried it
People named Dekoster,
with a public archive behind them.
-
Jan Dekoster 1927–2007 · accountant
Wikidata (CC0).
Nearby in the index
Surnames next to Dekoster.
- Deken 199 · U.S. census
- Dekeyser 811 · U.S. census
- Dekeyzer 169 · U.S. census
- Dekker 2,246 · U.S. census
- Dekoker 141 · U.S. census
- Dekoninck 115 · U.S. census
- Del 369 · U.S. census
- Dela 762 · U.S. census
- Delabarre 171 · U.S. census
- Delacour 128 · U.S. census
- Delacroix 193 · U.S. census
- Delaet 284 · U.S. census
When the index is not enough
This page says where Dekoster 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.