The South Gibson School Corporation is the largest of the three public school governing institutions in both enrollment and territory covered in Gibson County, Indiana as well as one of the ten largest in enrollment in Southwestern Indiana. The SGSC is responsible for a district including four townships of southern and southwestern Gibson County; Johnson, Montgomery, Union, Wabash, and parts of Barton, Center and Patoka Townships within Gibson County as well as drawing in students from Northern Vanderburgh and Posey Counties. It consists of a superintendent, a five-member school board, eight principals and vice principals and employs around 190 teachers and specialists. The SGSC's renovation of the then-35-year-old Gibson Southern High School was complete as of 2010-11 School Year.

• South Gibson has no central Middle School
• Note: Coal Mine Road is often signed as both 800S on its east terminus (Fort Branch End) and 400W
  on its north terminus (Indiana 168 or Owensville End) with the curve being about 200 feet west of the
  Gibson Southern High School Campus.

• Southern Indiana Career & Technical Center (Shared with 7 other school corporations)

• Fort Branch Marlette High School*
• Haubstadt Johnson High School*
• Owensville Montgomery High School*
• Merged to form Gibson Southern High School in 1974.

• East Gibson School Corporation
• Evansville Vanderburgh School Corporation
• M.S.D. North Posey
• North Gibson School Corporation
• Warrick County School Corporation