Westinghouse High School served a diverse population of middle- and working-class individuals who lived in the Homewood neighborhood.

[11] The Westinghouse students attended classes on a half-day schedule at Baxter Elementary while the permanent building on Murtland Street was being completed.

[12] When bids were received for the school the following year, the board felt they were too high and shelved the project "until normal market conditions return".

[17] The building was constructed in two phases, initially opening in September 1922, with only the exterior shell and some of the rooms on the ground floor complete.

[20] The school employed well-regarded faculty and offered English, mathematics, history, science and technical programs like engine repair for boys and home economics for girls.

[21] Midcentury marked a change in the racial makeup of Homewood as more Italian immigrants moved to the neighborhood and their children attended Westinghouse.

Furthermore, African Americans made up larger percentages of the students at Westinghouse as White residents began moving to the suburbs.

[22] By this time Westinghouse had produced several notable alumni including musicians Billy Strayhorn, Mary Lou Williams, and Erroll Garner.

[25] Westinghouse high school offers the following sports programs: Football, track and  cross country, volleyball, basketball, tennis, wrestling, and baseball.

[26] The most recent city league title was won by Westinghouse in 2020 with a score of 36 - 20 vs. Allderdice High School[27] Westinghouse Football winning championships: 1921-1922, 1927-1928, 1928-1929, 1930-1931, 1934-1935, 1938-1939, 1939-1940, 1941-1942, 1942-1943, 1944-1945, 1945-1946, 1946-1947,1947-1948, 1948-1949, 1949-1950, 1951-1952, 1954-1955, 1955-1956, 1956-1957, 1957-1958, 1958-1959, 1959-1960, 1960-1961, 1961-1962, 1963-1964, 1964-1965, 1965-1966, 1966-1967, 1970-1971, 1981-1982, 1992-1993, 1993-1994, 1995-1996, 1996-1997, 2020-2021[28] Notable players who have gone on to play in the NFL include: Tony Liscio, Art Dremer, Ron Casey, Mark Ellison, Wes Garnett, Jon Henderson, Eugene Harrison, Dave Kalina, Melvin Myricks, Mose Lantz, William Robinson and John Greene.

[32] Championship seasons:  1982-1983, 1983-1984, 1988-1989, 1989-1990, 1994-1995, 1995-1996, 1996-1997, 1997-1998, 1998-1999, 1999-2000, 2000-2001, 2001-2002, 2002-2003,2003-2004, 2004-2005, 2005-2006, 2006-2007, 2007-2008, 2008-2009, 2010-2011, 2011-2012, 2012-2013. Notable player Shawnice Wilson came out of the Westinghouse High School women's basketball program.

In Business Administration, Sports & Entertainment (B.A.S.E), students learn about marketing and accounting and get certificates in Microsoft Office and OSHA.

[39] Students in these courses learn how to apply skills and tech knowledge required to perform duties like law enforcement, emergency medical services, and firefighting.

Allderdice High School students in the nearby neighborhood of Squirrel Hill in Pittsburgh have the opportunity to come to Westinghouse to participate in these courses.