The boundary of the school district includes the part of eastern Longview in Harrison County.

[3] The school opened in a small building with one teacher, Salina Ferrell Smith, before moving into specially constructed quarters on the ground floor of the Masonic Lodge, completed in December 1871.

The Hallsville Bobcats compete in cross country, volleyball, football, basketball, powerlifting, soccer, golf, tennis, track, softball and baseball.

[7] The Hallsville High School UIL Academic team currently consists of 21 academic teams: Accounting, Computer Applications, Current Issues and Events, Literary Criticism, Ready Writing, Social Studies, Spelling and Vocabulary, Calculator Applications, Computer Science, Mathematics, Number Sense, Robotics, Science, One-Act Play, Theatrical Design, Film, Extemporaneous Speaking, Oral Interpretation, Debate, and Congress.

The first state champion for social studies coach Sheila Wright who has been teaching at HHS since 1993.