Serving 2,088 students in grades 9-12, Grant 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 top 50%) for the 2018-2019 school year.
The percentage of students achieving proficiency in math is 15% (which is lower than the California state average of 40%). The percentage of students achieving proficiency in reading/language arts is 47% (which is lower than the California state average of 51%).
The student:teacher ratio of 22:1 is higher than the California state level of 21:1.
Minority enrollment is 96% of the student body (majority Hispanic), which is higher than the California state average of 79% (majority Hispanic).
Quick Stats (2024)
- Grades: 9-12
- Enrollment: 2,088 students
- Student:Teacher Ratio: 22:1
- Minority Enrollment: 96%
- Graduation Rate: 91% (Top 50% in CA)
- Math Proficiency: 15%
- Reading Proficiency: 47%
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Grant Union High School's student population of 2,088 students has grown by 5% over five school years.
The teacher population of 97 teachers has grown by 6% over five school years.
Grades Offered
Grades 9-12
Total Students
2,088 students
Gender %
Total Classroom Teachers
97 teachers
Students by Grade
School Calendar
School Rankings
The diversity score of Grant Union High School is 0.64, which is more than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Math Test Scores (% Proficient)
(18-19)15%
40%
Reading/Language Arts Test Scores (% Proficient)
(18-19)47%
51%
Student : Teacher Ratio
22:1
21:1
American Indian
n/a
1%
Asian
15%
12%
Hispanic
56%
56%
Black
17%
5%
White
4%
21%
Hawaiian
3%
n/a
Two or more races
5%
5%
All Ethnic Groups
Graduation Rate
91%
84%
Eligible for Free Lunch
66%
51%
Eligible for Reduced Lunch
6%
7%
School Statewide Testing
School District Name
Source: 2021-2022 (latest school year available) National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What schools are Grant Union High School often compared to?
Grant Union High Schoolis often viewed alongside schools like Highlands High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
15% of students have achieved math proficiency (compared to the 40% CA state average), while 47% of students have achieved reading proficiency (compared to the 51% CA state average).
What is the graduation rate of Grant Union High School?
The graduation rate of Grant Union High School is 91%, which is higher than the California state average of 84%.
How many students attend Grant Union High School?
2,088 students attend Grant Union High School.
What is the racial composition of the student body?
56% of Grant Union High School students are Hispanic, 17% of students are Black, 15% of students are Asian, 5% of students are Two or more races, 4% of students are White, and 3% of students are Hawaiian.
What is the student:teacher ratio of Grant Union High School?
Grant Union High School has a student ration of 22:1, which is higher than the California state average of 21:1.
What grades does Grant Union High School offer ?
Grant Union High School offers enrollment in grades 9-12
What school district is Grant Union High School part of?
Grant Union High School is part of Twin Rivers Unified School District.
School Reviews
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