The Querio surname
In the 2010 U.S. Census, 154 people carried this name — #113,791 among all U.S. surnames, about 1 in every 2,000,000 people counted. That is down 5% from 162 in 2000.
In Argentina’s national register
At least 313 people named Querio 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 France’s civil register
France’s register of deaths holds 50 people named Querio.
15 of them were born outside France. Those born in France came from 11 départements, most often Alpes-Maritimes.
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 Switzerland’s population statistics
22 people named Querio live in Switzerland.
They live in 2 of Switzerland’s 26 cantons, most of all in Valais.
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.
Nearby in the index
Surnames next to Querio.
- Quattrone 648 · U.S. census
- Quay 1,120 · U.S. census
- Quenneville 584 · U.S. census
- Quentin 260 · U.S. census
- Quercia 331 · U.S. census
- Querin 155 · U.S. census
- Quero 808 · U.S. census
- Querol 157 · U.S. census
- Querry 1,071 · U.S. census
- Query 1,038 · U.S. census
- Quesada 7,870 · U.S. census
- Quesnel 772 · U.S. census
When the index is not enough
This page says where Querio 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.