The Marconi surname
In the 2010 U.S. Census, 2,712 people carried this name — #11,587 among all U.S. surnames, about 1 in every 108,700 people counted. That is up 4% from 2,620 in 2000.
In Argentina’s national register
At least 3,690 people named Marconi 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 245 people named Marconi.
90 of them were born outside France. Those born in France came from 24 départements, most often Alpes-Maritimes.
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
194 people named Marconi live in Switzerland.
They live in 11 of Switzerland’s 26 cantons, most of all in Ticino.
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 Poland’s population register
23 people named Marconi have a registered home in Poland.
Of the 51 in Poland’s national register, these are the ones with a permanent address on file. They live in 4 of Poland’s 16 voivodeships, most of all in Masovian.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.
In print
Marconi in American newspapers,
1905–1922.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 74,895 pages in all carry the name.
Who carried it
People named Marconi,
with a public archive behind them.
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Leandro Marconi 1763–1837 · architect -
Enrico Marconi 1792–1863 · architect -
Enrico Marconi 1792–1863 · architect
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Enrico Marconi 1792–1863 · architect
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Rocco Marconi 1490–1529 · painter
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Giovanni Battista Marconi 1755–1825 · architect
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Marconi.
- Marcinkowski 815 · U.S. census
- Marck 280 · U.S. census
- Marco 3,082 · U.S. census
- Marcolini 324 · U.S. census
- Marcon 454 · U.S. census
- Marcone 305 · U.S. census
- Marcos 5,052 · U.S. census
- Marcotte 5,923 · U.S. census
- Marcou 408 · U.S. census
- Marcouiller 134 · U.S. census
- Marcoux 2,507 · U.S. census
- Marcu 328 · U.S. census
When the index is not enough
This page says where Marconi 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.