The Cassaro surname
In the 2010 U.S. Census, 534 people carried this name — #40,856 among all U.S. surnames, about 1 in every 555,600 people counted. That is down 18% from 652 in 2000.
What the name means
The meaning of the Cassaro surname
A surname transferred from the place name.
Adapted from Sicilian U Càssaru, a toponym derived from cassru.
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Cassaro» (Italian), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Argentina’s national register
At least 76 people named Cassaro live in Argentina.
RENAPER only publishes a name in a province when more than ten people there share it, so the real number is higher. Most of them live in Santa Fe.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In France’s civil register
France’s register of deaths holds 70 people named Cassaro.
Most of them — 41 — were born outside France. Those born in France came from 9 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.
In Belgium’s population register
At least 30 people named Cassaro 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 Hainaut.
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 Switzerland’s population statistics
25 people named Cassaro live in Switzerland.
They live in 5 of Switzerland’s 26 cantons, most of all in Geneva.
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/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
Who carried it
People named Cassaro,
with a public archive behind them.
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Gaetano Cassaro 1948– · artist
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James P. Cassaro 1954– · librarian
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Marcelo Cassaro 1970– · painter
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Alexandre Cassaro 1988– · politician
Wikidata (CC0).
Nearby in the index
Surnames next to Cassaro.
- Cassan 171 · U.S. census
- Cassani 361 · U.S. census
- Cassano 2,188 · U.S. census
- Cassar 924 · U.S. census
- Cassara 1,383 · U.S. census
- Cassard 189 · U.S. census
- Cassat 110 · U.S. census
- Casse 272 · U.S. census
- Cassel 4,851 · U.S. census
- Cassen 144 · U.S. census
- Cassi 134 · U.S. census
- Cassier 105 · U.S. census
When the index is not enough
This page says where Cassaro 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.