The Santo surname
In the 2010 U.S. Census, 4,620 people carried this name — #7,224 among all U.S. surnames, about 1 in every 63,700 people counted. That is up 14% from 4,038 in 2000.
In Argentina’s national register
At least 1,420 people named Santo 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 156 people named Santo.
Most of them — 83 — were born outside France. Those born in France came from 23 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 Switzerland’s population statistics
147 people named Santo live in Switzerland.
They live in 15 of Switzerland’s 26 cantons, most of all in Ticino.
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.
In print
Santo in American newspapers,
1898–1905.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 367,433 pages in all carry the name.
Who carried it
People named Santo,
with a public archive behind them.
-
Mariano Santo 1488–1577 · physician -
Ignacia del Espíritu Santo 1663–1748 · nun -
Gustav Moritz Santo 1802–1856 · teacher
-
Philip Santo 1818–1889 · businessperson
-
Augusto Santo 1869–1907 · sculptor
-
Joseph Santo 1869–1944 · journalist
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Santo.
- Santi 1,566 · U.S. census
- Santiago 122,212 · U.S. census
- Santilli 1,549 · U.S. census
- Santin 630 · U.S. census
- Santinelli 126 · U.S. census
- Santini 3,680 · U.S. census
- Santon 249 · U.S. census
- Santoni 695 · U.S. census
- Santori 378 · U.S. census
- Santoro 8,713 · U.S. census
- Santos 137,232 · U.S. census
- Santucci 3,278 · U.S. census
When the index is not enough
This page says where Santo 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.