Granite Hills High
Porterville, CA · High School · Grades 9-12
Performance Overview
About This School
Granite Hills High is a high school located in Porterville, California. The school serves 1,242 students in grades 9-12.
With a DataScore of 51/100 (C), Granite Hills High performs at the state average for California. Notably, the school is on an upward trend, showing meaningful improvement over the past three years.
92% of students qualify for free or reduced-price lunch, indicating the school serves a predominantly low-income community. DataScores measure outcomes regardless of demographics — what matters is how students perform and whether they're improving.
Frequently Asked Questions
Granite Hills High has a DataScore of 51/100 (Grade C), based on academic proficiency (35%), growth trend (30%), graduation rate (20%), and resource access (15%). This measures actual student outcomes, not school inputs.
Granite Hills High has 1,242 students enrolled in grades 9-12. The student-to-teacher ratio is 22.2:1.
Yes, Granite Hills High is on an upward trend with a 3-year growth score of +21, showing meaningful academic improvement.
The DataScore (0-100, A-F) grades every US public school based on academic outcomes: proficiency rates (35%), 3-year growth trend (30%), graduation rate for high schools (20%), and resource access (15%). Unlike other ratings, it focuses on what students actually achieve.
Granite Hills High is part of the Porterville Unified in Porterville, California. You can view all schools in this district and compare their performance on the district page.
DataScore is calculated from NCES proficiency rates, 3-year growth trends, graduation rates (high schools), and resource access indicators.