Serving 974 students in grades 9-12, Corning Union High School ranks in the bottom 50% of all schools in California for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 11% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 31% (which is lower than the California state average of 47%).
The student-teacher ratio of 18:1 is lower than the California state level of 21:1.
Minority enrollment is 76% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 9-12
- Enrollment: 974 students
- Student-Teacher Ratio: 18:1
- Minority Enrollment: 76%
- Graduation Rate: ≥99% (Top 1% in CA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 11% (Btm 50%)
- Reading Proficiency: 31% (Btm 50%)
- Science Proficiency: 13% (Btm 50%)
- Attendance Zone: Corning High's attendance zone encompasses the entire school district in Corning, CA, covering approximately 611.6 square miles. The zone typically requires a 20-30 minute drive to reach the school, with an average distance of 24.4 miles from the school to the edge of the zone, extending up to 42.2 miles at its furthest point.
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Corning Union High School ranks among the top 20% of public schools in California for:
Category
Attribute
Graduation Rate
School Overview
Corning Union High School's student population of 974 students has stayed relatively flat over five school years.
The teacher population of 54 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
974 students
Total Classroom Teachers
54 teachers
School Calendar
Campus Size
50 acres
School Rankings
Corning Union High School ranks within the bottom 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Corning Union High School is 0.47, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#7953 out of 9523 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
11%
34%
Reading/Language Arts Test Scores (% Proficient)
31%
47%
Science Test Scores (% Proficient)
13%
29%
Student-Teacher Ratio
18:1
21:1
American Indian
1%
1%
Asian
2%
12%
Hispanic
69%
56%
Black
1%
5%
White
24%
20%
Hawaiian
n/a
n/a
Two or more races
3%
6%
All Ethnic Groups
Graduation Rate
≥99%
87%
Chronically Absent Students
(22-23)21.6%
27.7%
Eligible for Free Lunch
66%
54%
Eligible for Reduced Lunch
16%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Corning Union High School's ranking?
Corning Union High School is ranked #7953 out of 9,523 schools, which ranks it among the bottom 50% of public schools in California.
What schools are Corning Union High School often compared to?
Corning Union High Schoolis often viewed alongside schools like Red Bluff High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
11% of students have achieved math proficiency (compared to the 34% CA state average), while 31% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Corning Union High School?
The graduation rate of Corning Union High School is 99%, which is higher than the California state average of 87%.
How many students attend Corning Union High School?
974 students attend Corning Union High School.
What is the racial composition of the student body?
69% of Corning Union High School students are Hispanic, 24% of students are White, 3% of students are Two or more races, 2% of students are Asian, 1% of students are American Indian, and 1% of students are Black.
What is the student-teacher ratio of Corning Union High School?
Corning Union High School has a student ration of 18:1, which is lower than the California state average of 21:1.
What grades does Corning Union High School offer ?
Corning Union High School offers enrollment in grades 9-12
What school district is Corning Union High School part of?
Corning Union High School is part of Corning Union High School District.
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