Centennial High
Corona, CA · High School · Grades 9-12
Centennial High is a high school in Corona, CA with 3,037 students enrolled and a 47% proficiency rate. Part of Corona-Norco Unified. NCES data from the U.S. Department of Education.
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About This School
Centennial High is a high school located in Corona, California. The school serves 3,037 students in grades 9-12. The student-to-teacher ratio is 25.1:1.
According to EDFacts assessment data, 47% of students meet grade-level proficiency standards in combined math and reading. The school reports a 70% graduation rate.
79% of students qualify for free or reduced-price lunch, indicating the school serves a predominantly low-income community.
Centennial High is part of the Corona-Norco Unified in California. The school receives Title I federal funding.
How This School Compares
Centennial High has 3,037 students enrolled, making it larger than the average school in Corona-Norco Unified (975 students). Its 47% proficiency rate is 5 percentage points above the district average of 42%. Compared to the California state average of 45%, the school performs 2 points higher. The 25.1:1 student-teacher ratio is above the national average of 16:1.
Frequently Asked Questions
Centennial High has 3,037 students enrolled in grades 9-12. The student-to-teacher ratio is 25.1:1.
According to EDFacts data, 47% of students at Centennial High meet grade-level proficiency standards in combined math and reading assessments.
Centennial High has a 70% graduation rate, measuring the percentage of students who graduate within four years.
Centennial High is part of the Corona-Norco Unified in Corona, California. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
The this entity record above pulls directly from NCES Common Core of Data and EDFacts. What follows is the per-entity context — how this entity sits in the broader U.S. K-12 school outcomes and enrollment distribution and which underlying factors drive the headline numbers.
Every number on this page links back to NCES Common Core of Data and EDFacts; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. public schools and districts. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: NCES Common Core of Data, 2026.