The Montanaro surname
In the 2010 U.S. Census, 1,298 people carried this name — #20,458 among all U.S. surnames, about 1 in every 227,300 people counted. That is up 22% from 1,066 in 2000.
In Argentina’s national register
At least 782 people named Montanaro 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
156 people named Montanaro live in Switzerland.
They live in 9 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 86 people named Montanaro.
33 of them were born outside France. Those born in France came from 11 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 Montanaro.
- Montalban 725 · U.S. census
- Montalbano 3,245 · U.S. census
- Montalto 1,534 · U.S. census
- Montana 4,744 · U.S. census
- Montanard 176 · U.S. census
- Montanari 719 · U.S. census
- Montandon 333 · U.S. census
- Montane 303 · U.S. census
- Montaner 187 · U.S. census
- Montanes 201 · U.S. census
- Montani 384 · U.S. census
- Montano 27,276 · U.S. census
When the index is not enough
This page says where Montanaro 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.