Garrison Independent School District

Garrison Independent School District is a public school district based in Garrison, Texas (USA). The district is located in northeastern Nacogdoches County and extends into a southeastern Rusk County.

Garrison ISD has three campuses -
 * Garrison High School (Grades 9-12)
 * Garrison Middle (Grades 6-8)
 * Garrison Elementary (Grades PK-5)

In 2009, the school district was rated "academically acceptable" by the Texas Education Agency.