| Grossmont Union High School District | |
|---|---|
 | |
| Location | |
| , California United States | |
| Coordinates | 32°47′23″N 116°57′45″W / 32.78972°N 116.96250°W |
| District information | |
| Type | Public |
| Grades | 9–12 and adult education |
| Established | 1920 |
| Superintendent | Mary Beth Kastan |
| Other information | |
| Website | www |
Grossmont Union High School District (GUHSD) is a public school district based in eastern San Diego County, California. It serves high school, adult school, and Regional Occupational Program (ROP) students in the cities of El Cajon, Lemon Grove, and Santee; the unincorporated communities of Alpine, Casa de Oro, Crest, Dehesa, Dulzura, Jamul, Lakeside, Mount Helix, Rancho San Diego, and Spring Valley; most of La Mesa, and parts of San Diego.
Formed in June 1920, the union high school district is overseen by a five-member governing board and operates 13 high schools (nine regular, three charter, and one continuation); a regional occupational program (ROP); and special education and adult education services. The day-to-day operations are managed by the superintendent, who is appointed by the board.
Grossmont Union High School District utilizes a strategic plan that includes a mission statement, district guidelines, core values, and annual goals and objectives. The district's schools are accredited by the Western Association of Schools and Colleges (WASC).
Four of the district's high schools—Helix, Mount Miguel, Santana, and Valhalla (twice)—have been recognized as a California Distinguished School by the California Department of Education.
In March 2001, the district and two of its high schools—Santana and Granite Hills—made nationwide headlines in the US when, in a span of seventeen days, a total of two students were killed and twenty students and two teachers were wounded when two students, in separate incidents, opened fire at their schools.