Harlingen High School
- 9-12th Grades. Harlingen ISD.
- http://www2.harlingen.isd.tenet.edu/~HHS/

Summer Camp at Marine Military Academy
- Details about summer programs, application form, fee schedule, and photo gallery.
- http://www.summer-camp-mma.org/

Harlingen South High School
- 9-12th Grades. Harlingen ISD.
- http://www2.harlingen.isd.tenet.edu/~HHSS/Hhsshomepage.htm

Keys Academy
- A non-traditional alternative campus for at-risk youth.
- http://www2.harlingen.isd.tenet.edu/~KEYS/keys.htm

Marine Military Academy
- School for boys grades 8-12 and post graduate founded on Marine Corps traditions and ideals.
- http://www.mma-tx.org/