Ridgewood High School is the high school that Liv, Maddie and Joey attend. Their school's mascot is the Fighting Porcupine.
- Principal Fickman is the school principal.
- Pete Rooney is the school basketball coach.
- Karen Rooney is the school psychologist.
- Liv Rooney- 10th grade
- Maddie Rooney- 10th grade
- Joey Rooney- 9th grade
- Diggie - 10th grade
- Willow - 10th grade
- Skippy Ramirez - 9th grade
- Many unknown other students
- The school's mascot is the Fighting Porcupine.
- The Fighting Porcupine has its own statue in the school and appears on the back of the basketball team's uniform.