The Trieu surname
In the 2000 U.S. Census, 2,613 people carried this name — #11,138 among all U.S. surnames, about 1 in every 103,100 people counted.
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In Switzerland’s population statistics
90 people named Trieu live in Switzerland.
They live in 10 of Switzerland’s 26 cantons, most of all in Bern.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss · names with fewer than 3 bearers in a canton are not published.
In France’s civil register
France’s register of deaths holds 56 people named Trieu.
Most of them — 47 — were born outside France. Those born in France came from 7 départements, most often Lot.
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.
In Belgium’s population register
At least 25 people named Trieu 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 Liège.
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.
Nearby in the index
Surnames next to Trieu.
- Tribou 257 · U.S. census
- Tribout 145 · U.S. census
- Tricarico 970 · U.S. census
- Triche 1,001 · U.S. census
- Tricoche 239 · U.S. census
- Trierweiler 654 · U.S. census
- Trigo 1,181 · U.S. census
- Trimborn 209 · U.S. census
- Trimbur 309 · U.S. census
- Trinca 229 · U.S. census
- Trindade 512 · U.S. census
- Trinh 11,507 · U.S. census
When the index is not enough
This page says where Trieu 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.