| School Name | Address | Phone | Grades | County | Type | District Name |
| Mississinewa High School | 1 Indian Trl Gas City, IN 46933 | (765) 674-2248 | 9-12 | Grant | public | Mississinewa Community School Corporation |
| Ethnic Background | Percent | Year |
| White, non-Hispanic | 92.3729 | 2011 |
| Black, non-Hispanic | 1.41243 | 2011 |
| Hispanic | 2.40113 | 2011 |
| American Indian/Alaskan Native | 0.423729 | 2011 |
| Multiracial | 2.40113 | 2011 |
| Asian | 0.988701 | 2011 |
| Students Getting Free Lunch | Year |
| 50% | 2011 |
| Date | Who | Comments |
| 1/5/2010 | parent | Mississinewa is a top notch school system in Grant County. It's teachers and administration, at all grade levels, is second to none. As a parent, I choose to send my children to Mississinewa School District. |
| 7/30/2009 | parent | I have two graduates, a boy and a girl, and two other boys in elementary and middle school. All are thriving. A good conservative education. |
| 4/30/2009 | parent | My daughter has been bullied for the last 2 years. She attends RJ Basket Middle School. The school officials have done nothing for her fears. They have chosen to ignore the bullying. They have allowed for an unsafe school environment. I am totally disappointed with the school system. |
| 5/3/2005 | parent | The adminsration and teachers at the high school helped my son to graduate. Without the dedicated work of the principal, Mrs. Winters my son would have been a drop out. The teachers did there best but I don't think they had much patience for alternative students. An area that needs improvement. Thanks to Mrs. Winter my child was not 'Left Behind'. |