Trojan surname: U.S. census count, rank and records | FamilyCrests

The Trojan surname

In the 2010 U.S. Census, 1,230 people carried this name — #21,307 among all U.S. surnames, about 1 in every 238,100 people counted. That is down 3% from 1,268 in 2000.

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In Poland’s population register

3,963 people named Trojan have a registered home in Poland.

Of the 4,338 in Poland’s national register, these are the ones with a permanent address on file. They live in all 16 of Poland’s voivodeships, most of all in Lesser Poland.

Where it concentrates, on the map

Where they live today

Lesser Poland 1,066
Subcarpathian 477
Lower Silesian 466
Silesian 446
Masovian 347
Łódź 278
Kuyavian-Pomeranian 139
Opole 121

PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.

In France’s civil register

France’s register of deaths holds 57 people named Trojan.

18 of them were born outside France. Those born in France came from 12 départements, most often Vienne.

Too few records to say where it concentrates region by region — these are plain counts, not shares.

Where they were born

Born outside France 18
Vienne 9
Paris 5
Pas-de-Calais 5
Moselle 5
Aveyron 4
Loire 3
Isère 2
Charente 2

Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.

In Argentina’s national register

At least 37 people named Trojan 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 Chaco.

Too few records to say where it concentrates region by region — these are plain counts, not shares.

Where they live today

Chaco 20
Buenos Aires Province 17

RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.

Who carried it

People named Trojan,
with a public archive behind them.

  • Alois Pravoslav Trojan
    Alois Pravoslav Trojan 1815–1893 · lawyer
  • Johannes Trojan
    Johannes Trojan 1837–1915 · writer
  • František Trojan
    František Trojan 1853–1934 · pedagogue
  • František Břetislav Trojan 1816–1889 · politician
  • Emanuel Trojan 1820–1893 · architect
  • Johannes Trojan 1837–1925 · botanist

Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.

Nearby in the index

Surnames next to Trojan.

When the index is not enough

This page says where Trojan 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.

See what a volume holds
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