The Piatti surname
In the 2000 U.S. Census, 155 people carried this name — #106,477 among all U.S. surnames, about 1 in every 1,666,700 people counted.
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In Switzerland’s population statistics
252 people named Piatti live in Switzerland.
They live in 15 of Switzerland’s 26 cantons, most of all in Zurich.
Where it concentrates, on the mapWhere 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 123 people named Piatti.
20 of them were born outside France. Those born in France came from 21 départements, most often Bouches-du-Rhône.
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.
Nearby in the index
Surnames next to Piatti.
- Piano 713 · U.S. census
- Piard 117 · U.S. census
- Piarulli 138 · U.S. census
- Piasecki 1,951 · U.S. census
- Piatek 801 · U.S. census
- Piatkowski 538 · U.S. census
- Piazza 8,311 · U.S. census
- Pic 141 · U.S. census
- Picano 331 · U.S. census
- Picard 7,679 · U.S. census
- Picardo 302 · U.S. census
- Picart 366 · U.S. census
When the index is not enough
This page says where Piatti 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.