The Blasco surname
In the 2010 U.S. Census, 1,044 people carried this name — #24,112 among all U.S. surnames, about 1 in every 285,700 people counted. That is up 10% from 945 in 2000.
In Argentina’s national register
At least 4,142 people named Blasco 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 898 people named Blasco.
433 of them were born outside France. Those born in France came from 50 départements, most often Hérault.
Where it concentrates, on the mapWhere 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
89 people named Blasco live in Switzerland.
They live in 8 of Switzerland’s 26 cantons, most of all in Vaud.
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.
Who carried it
People named Blasco,
with a public archive behind them.
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Domingo Blasco d. 1239 · Catholic priest
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M.P. Blasco d. 1999 · botanist
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Michele Blasco 1607–1685 · architect
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Michele Blasco 1607–1661 · architect
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Manuel Blasco 1628–1696 · composer
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Manuel Blasco 1628–1696 · composer
Wikidata (CC0).
Nearby in the index
Surnames next to Blasco.
- Blandin 773 · U.S. census
- Blandino 664 · U.S. census
- Blandy 123 · U.S. census
- Blank 13,050 · U.S. census
- Blaquiere 156 · U.S. census
- Blas 3,612 · U.S. census
- Blaser 2,931 · U.S. census
- Blasi 1,524 · U.S. census
- Blasquez 218 · U.S. census
- Blaszczyk 643 · U.S. census
- Blatt 4,020 · U.S. census
- Blatter 828 · U.S. census
When the index is not enough
This page says where Blasco 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.