It has a mailing address of Santa Ana, but it is a part of the Tustin Unified School District.

[5] It is the only school in the Tustin Unified School District to offer the International Baccalaureate program, having five International Baccalaureate Higher Level, and eight International Baccalaureate Standard Level courses.

Foothill plays in the Crestview League, a part of the CIF Southern Section (CIF-SS), which is part of California Interscholastic Federation (CIF).

Fall: Winter: Spring: Foothill was built on a 37-acre campus.

[6] Former head football coach of the Kansas State Wildcats, Bill Snyder, coached at Foothill High School from 1969-1974, then went on to a coach at Austin College and Iowa before landing at Kansas State University.