The Rizza surname
In the 2010 U.S. Census, 959 people carried this name — #25,701 among all U.S. surnames, about 1 in every 303,000 people counted. That is up 5% from 911 in 2000.
In Argentina’s national register
At least 425 people named Rizza 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 Buenos Aires Province.
Where it concentrates, on the mapWhere they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In Switzerland’s population statistics
176 people named Rizza live in Switzerland.
They live in 10 of Switzerland’s 26 cantons, most of all in Ticino.
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/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
In France’s civil register
France’s register of deaths holds 135 people named Rizza.
Most of them — 86 — were born outside France. Those born in France came from 17 départements, most often Meurthe-et-Moselle.
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 24 people named Rizza 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.
Nearby in the index
Surnames next to Rizza.
- Rivieccio 213 · U.S. census
- Riviera 1,277 · U.S. census
- Riviere 1,135 · U.S. census
- Rivoire 155 · U.S. census
- Rix 2,391 · U.S. census
- Rizo 6,266 · U.S. census
- Rizzi 2,801 · U.S. census
- Rizzo 18,605 · U.S. census
- Rizzolo 649 · U.S. census
- Rizzotto 371 · U.S. census
- Rizzuto 2,316 · U.S. census
- Roa 6,221 · U.S. census
When the index is not enough
This page says where Rizza 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.