The Rex surname
In the 2000 U.S. Census, 5,437 people carried this name — #5,824 among all U.S. surnames, about 1 in every 49,500 people counted.
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In France’s civil register
France’s register of deaths holds 68 people named Rex.
10 of them were born outside France. Those born in France came from 18 départements, most often Guadeloupe.
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
35 people named Rex live in Switzerland.
They live in 6 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.
In Poland’s population register
25 people named Rex have a registered home in Poland.
Of the 42 in Poland’s national register, these are the ones with a permanent address on file. They live in 5 of Poland’s 16 voivodeships, most of all in Greater Poland.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.
Nearby in the index
Surnames next to Rex.
- Revelli 198 · U.S. census
- Revello 410 · U.S. census
- Revers 292 · U.S. census
- Revilla 1,936 · U.S. census
- Reville 448 · U.S. census
- Revuelta 507 · U.S. census
- Rey 7,348 · U.S. census
- Reyes 232,511 · U.S. census
- Reymann 257 · U.S. census
- Reymond 273 · U.S. census
- Reynaert 102 · U.S. census
- Reynard 1,033 · U.S. census
When the index is not enough
This page says where Rex 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.