what an average gpa
High School GPA Averages. The overall average GPA nationally is a 3.0, but this may be deceptive. The average in core subject areas is actually a bit lower. The average GPA is brought up to a 3.0 by the higher grades that students receive in courses that are not part of the core curriculum. The core curriculum in the data that I looked at was considered to be math, science, English, and social studies courses.