The Marcu surname
In the 2000 U.S. Census, 238 people carried this name — #75,466 among all U.S. surnames, about 1 in every 1,111,100 people counted.
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In Belgium’s population register
At least 127 people named Marcu 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 Brussels-Capital.
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 106 people named Marcu.
22 of them were born outside France. Those born in France came from 15 départements, most often Paris.
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 Switzerland’s population statistics
69 people named Marcu live in Switzerland.
They live in 12 of Switzerland’s 26 cantons, most of all in Zurich.
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.
Nearby in the index
Surnames next to Marcu.
- Marconi 2,620 · U.S. census
- Marcos 3,263 · U.S. census
- Marcotte 5,771 · U.S. census
- Marcou 424 · U.S. census
- Marcouiller 142 · U.S. census
- Marcoux 2,488 · U.S. census
- Marcucci 1,544 · U.S. census
- Marcuccilli 132 · U.S. census
- Marcus 17,360 · U.S. census
- Marcy 2,670 · U.S. census
- Marczak 663 · U.S. census
- Mardirossian 323 · U.S. census
When the index is not enough
This page says where Marcu 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.