Turlock High School (THS) is a comprehensive high school located in the heart of the northern San Joaquin Valley.  It is a 40+ acre campus, in the midst of a long established residential neighborhood, consisting of 133 classrooms positioned in and around an array of athletic, agricultural, business, and vocational complexes.  It is situated in a transitional agrarian/suburban community and serves two public elementary school districts in addition to a number of private and parochial schools that exist in the surrounding area.  The community's economy is based primarily on agriculture and related industry; it is a community comprised of professionals employed by the local university, Medic Alert, Emanuel Hospital, Foster Farms, and a myriad of corporations based in Modesto.

Turlock High School was established in 1906 and moved to its current site in 1920.  The academic focus and direction of the Turlock community was greatly enhanced in 1962 with the establishment of California State University, Stanislaus which is located in Turlock.  Seven years ago, THS was the second largest high school in northern California.  However, to ease the burden of overcrowding, a community bond was passed in 1998 to construct a second comprehensive campus, John H. Pitman High School, which opened in August, 2002.