The Tomassi surname
In the 2000 U.S. Census, 634 people carried this name — #33,876 among all U.S. surnames, about 1 in every 416,700 people counted.
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In France’s civil register
France’s register of deaths holds 114 people named Tomassi.
Most of them — 70 — were born outside France. Those born in France came from 9 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 Poland’s population register
31 people named Tomassi have a registered home in Poland.
Of the 35 in Poland’s national register, these are the ones with a permanent address on file. They live in 4 of Poland’s 16 voivodeships, most of all in Łódź.
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 Tomassi.
- Tomas 4,894 · U.S. census
- Tomaselli 1,224 · U.S. census
- Tomasello 2,380 · U.S. census
- Tomasi 914 · U.S. census
- Tomasini 891 · U.S. census
- Tomasino 670 · U.S. census
- Tomasso 709 · U.S. census
- Tomaszewski 3,677 · U.S. census
- Tomczak 2,550 · U.S. census
- Tomczyk 1,242 · U.S. census
- Tome 1,713 · U.S. census
- Tomei 1,079 · U.S. census
When the index is not enough
This page says where Tomassi 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.