The Aires surname
In the 2010 U.S. Census, 244 people carried this name — #78,316 among all U.S. surnames, about 1 in every 1,250,000 people counted. That is down 5% from 257 in 2000.
In Argentina’s national register
At least 821 people named Aires 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
205 people named Aires live in Switzerland.
They live in 16 of Switzerland’s 26 cantons, most of all in Geneva.
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 89 people named Aires.
33 of them were born outside France. Those born in France came from 16 départements, most often Corrèze.
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 Aires.
When the index is not enough
This page says where Aires 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.