The mission of the Harmony Independent School District is for each student to develop to their full potential. This encompasses all of the essential academic skills and a strong knowledge base to be productive citizens and have a solid foundation to pursue lifelong learning.

Harmony ISD will provide instructional programs for all students that foster a high standard of academic achievement, good behavior, and self-worth; moreover, students will be adequately prepared with academic and marketable skills to enter the post secondary arena.

Harmony School was founded in 1938 with the consolidation of Rosewood, Rhonesboro, Union (Little Mound), and Honey Creek. The name "Harmony" was selected because of the ease of passage of the consolidation. Other schools who later consolidated with Harmony included Grice, Peach, Enon, Soules Chapel, Latch, and part of Kelsey. The campus is located on Highway 154 ten miles west of Gilmer and nine miles northeast of Holly Lake Ranch between the communities of Rosewood and Rhonesboro. Harmony ISD includes the western part of Upshur County and the eastern part of Wood County.Approximately 980 students attend Harmony ISD.