The Trejo surname

In the 2010 U.S. Census, 41,021 people carried this name — #843 among all U.S. surnames, about 1 in every 7,190 people counted. That is up 50% from 27,383 in 2000.

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What the name means

The meaning of the Trejo surname

Habitational surname borrowed from Spanish Trejo.

From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Trejo» (English), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.

In Argentina’s national register

At least 17,679 people named Trejo 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 map

Where they live today

Buenos Aires Province 6,434
Santiago del Estero 3,279
Tucumán 2,819
Córdoba 1,034
Santa Fe 717
City of Buenos Aires 703
Jujuy 604
Mendoza 478

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

In Switzerland’s population statistics

37 people named Trejo live in Switzerland.

They live in 6 of Switzerland’s 26 cantons, most of all in Zurich.

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

Where they live today

Zurich 15
Aargau 7
Graubünden 5
Nidwalden 4
Bern 3
Geneva 3

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

Trejo in American newspapers,
1926–1930.

Newspaper page from Evening Star carrying the name Trejo
Evening Star 1928-07-31
Newspaper page from Evening Star carrying the name Trejo
Evening Star 1926-03-09
Newspaper page from La Gaceta carrying the name Trejo
La Gaceta 1930-10-02

Chronicling America, Library of Congress — digitised newspapers in the public domain · 2,169 pages in all carry the name.

Who carried it

People named Trejo,
with a public archive behind them.

  • Nemesio Trejo
    Nemesio Trejo 1862–1916 · singer
  • Héctor Trejo
    Héctor Trejo 1919–1992 · association football player
  • Hugo Trejo
    Hugo Trejo 1922–1998 · military personnel
  • Oswaldo Trejo
    Oswaldo Trejo 1924–1996 · writer
  • Mario Trejo
    Mario Trejo 1926–2012 · screenwriter
  • Catalina García-Trejo del Campo 1870–1952 · pedagogue

Wikidata (CC0) · portraits via Wikimedia Commons, shown cropped, in the public domain or CC0 · 10 lives in all are documented under this name.

In the public record

People named Trejo,
in the records of the United States.

Soldiers, farmers, migrants and neighbours who carried the name and left a trace in public archives. Everyone shown here died long ago or was born more than a century ago.

United States534 records

534 records of the Trejo name in the United States
  • U.S. alien registration index, 1940–1955 385
  • U.S. Army enlistment records, World War II 80
  • U.S. veterans' cemetery records, burials to 2001 63
  • U.S. service members who died in the Vietnam War 4
  • U.S. service members who died in the Korean War 2
  1. Names engraved on the Vietnam Veterans Memorial, Washington, D.C.
    Example: U.S. war memorial
    War record Refugio Trejo

    Born 1930; from Bexar County, Texas. U.S. Army, light weapons infantryman; killed in action 1951 in South Korea. Buried at Fort Sam Houston National Cemetery, Texas.

    U.S. National Archives, Defense Casualty Analysis System (public domain); U.S. Department of Veterans Affairs, Gravesite Locator (CC0)
  2. A United States Selective Service registration card, 1942
    Example: U.S. registration card, 1942
    Military record David Q. Trejo

    Born 1913 in Mexico. Enlisted 1944 at Santa Fe, New Mexico; farm hand. U.S. Army veteran of World War II; died 1980, buried at Fort Logan National Cemetery, Colorado.

    U.S. National Archives, WWII Army Enlistment Records (public domain); U.S. Department of Veterans Affairs, Gravesite Locator (CC0)
  3. A U.S. Army record of death and interment, Camp Nelson, Kentucky, 1864
    Example: U.S. burial record, 1864
    Burial record Fernando A. Trejo

    U.S. Army veteran. Born 1957, died 2001; buried at Fort Sam Houston National Cemetery, Texas.

    U.S. Department of Veterans Affairs, Gravesite Locator (CC0)

Showing 3 of 534 records for Trejo in the United States.

Counts: U.S. National Archives, Flexoline Index Data File (public domain) · U.S. National Archives, WWII Army Enlistment Records (public domain) · U.S. Department of Veterans Affairs, Gravesite Locator (CC0) · U.S. National Archives, Defense Casualty Analysis System (public domain). Example pages, not the records of the people shown: Vietnam Veterans Memorial, photo by U.S. Army Sgt. 1st Class Michael J. Carden, 2009 (public domain); U.S. Selective Service registration card, 1942 (public domain); Record of death and interment, Camp Nelson, Kentucky, 1864, U.S. National Archives (public domain).

Nearby in the index

Surnames next to Trejo.

When the index is not enough

This page says where Trejo 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 the Trejo volume
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