The Clementi surname
In the 2000 U.S. Census, 1,140 people carried this name — #21,395 among all U.S. surnames, about 1 in every 238,100 people counted.
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In France’s civil register
France’s register of deaths holds 197 people named Clementi.
50 of them were born outside France. Those born in France came from 18 départements, most often Corsica.
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
111 people named Clementi live in Switzerland.
They live in 7 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 Clementi.
- Clem 8,087 · U.S. census
- Clemence 712 · U.S. census
- Clemens 13,995 · U.S. census
- Clemenson 605 · U.S. census
- Clement 23,233 · U.S. census
- Clemente 7,453 · U.S. census
- Clementz 441 · U.S. census
- Cler 307 · U.S. census
- Clerc 366 · U.S. census
- Clere 394 · U.S. census
- Clerge 175 · U.S. census
- Clerget 106 · U.S. census
When the index is not enough
This page says where Clementi 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.