The Demoor 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 8% from 213 in 2000.
In Belgium’s population register
At least 303 people named Demoor 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 East 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 169 people named Demoor.
13 of them were born outside France. Those born in France came from 14 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 23 people named Demoor 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.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
Who carried it
People named Demoor,
with a public archive behind them.
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Joseph Demoor 1844–1905 · politician
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Jean Demoor 1867–1941 · physician
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Guido Demoor 1952–2006
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Marysa Demoor 1956– · university teacher
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Jonathan Demoor 1987– · musical theatre actor
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Joseph DeMoor 1990– · runner
Wikidata (CC0).
Nearby in the index
Surnames next to Demoor.
- Demmerle 161 · U.S. census
- Demolle 112 · U.S. census
- Demond 629 · U.S. census
- Demons 205 · U.S. census
- Demont 586 · U.S. census
- Demonte 1,058 · U.S. census
- Demora 192 · U.S. census
- Demore 941 · U.S. census
- Demory 554 · U.S. census
- Demoulin 408 · U.S. census
- Demouy 219 · U.S. census
- Demunck 133 · U.S. census
When the index is not enough
This page says where Demoor 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.