The former Las Cruces High School is located at the corner of Alameda and Picacho Avenues near Downtown Las Cruces and Holy Cross Catholic Church. The current campus (opened in 1954) inherited the Bulldog mascot and school colors from the former school. After the opening of the current campus, the old LCHS building was converted to Alameda Junior High School (closed in 1980s). The former LCHS building is now part of the Third Judicial District Court of Las Cruces.

The current campus has undergone numerous renovations and expansions since opening its doors in 1956. The vocational building was constructed in 1993, and D wing was built in 1997. The music wing was renovated between 1996 and 1998. The cafeteria was renovated in 2000. That same year, the Gym Lobby, a Chapel-like space inside LCHS, was also constructed. Beginning in the summer of 2013, the rest of the campus underwent renovation, with a proposed budget of $84 million USD. Every renovation of LCHS was finalized at the August 2019 Fall Assembly with the entire student body present. ^[3] St. Genevieve is the patron saint of LCHS. The school used to display the church of St. Genevieve on the front page of the yearbook in the early 21st century.^{[citation needed]}

LCHS has a long-standing rivalry with Mayfield, the city's second-oldest public high school, with the annual football clash between the schools routinely attracting more than 20,000 fans. LCHS and MHS have combined to win 11 of the past 20 New Mexico state championships in football, with the annual year-end game between the schools almost invariably determining the district title. The Mayfield-Las Cruces high school football rivalry was voted the 9th best in the nation by rivals.com in 2008. The documentary film Cruces Divided is based on this rivalry.^[4]

LCHS competes in the New Mexico Activities Association (NMAA), as a class 6A school in District 3. In 2014, NMAA realigned the state's schools in to six classifications and adjusted district boundaries.^[5] In addition to Las Cruces High School, the schools in District 3-6A include: Organ Mountain High School, Mayfield High School, Gadsden High School, Hobbs High School, and Carlsbad High School (New Mexico). From its opening until the opening of the Pan American Center, the New Mexico State Aggies men's basketball team played its home games at the LCHS gym, and the West first round games of the 1959 NCAA University Division basketball tournament were held there, one of only two high school gymnasiums to host games of the tournament (the other being Capitol Hill High School in Oklahoma City).

State championships edit

(*) Las Cruces Union High School

(†) Not officially recognized by NMAA, which does not recognize any state football titles before 1950.^[6]

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