Serving 1,912 students in grades 9-12, Casa Grande Union High School ranks in the bottom 50% of all schools in Arizona for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 21% (which is lower than the Arizona state average of 34%). The percentage of students achieving proficiency in reading/language arts is 39% (which is lower than the Arizona state average of 40%).
The student-teacher ratio of 22:1 is higher than the Arizona state level of 17:1.
Minority enrollment is 80% of the student body (majority Hispanic), which is higher than the Arizona state average of 67% (majority Hispanic).
Quick Facts (26-27)
- Grades: 9-12
- Enrollment: 1,912 students
- Student-Teacher Ratio: 22:1
- Minority Enrollment: 80%
- Graduation Rate: 69% (Btm 50% in AZ)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 21% (Btm 50%)
- Reading Proficiency: 39% (Top 50%)
- Science Proficiency: 16% (Btm 50%)
- Attendance Zone: Casa Grande Union High School serves the northern part of Casa Grande, AZ, covering an extensive attendance area of approximately 396.9 square miles. Families typically have a drive of 20-30 minutes to reach the school, with an average distance of 19.2 miles to the edge of the zone and a maximum distance of 37.3 miles to the furthest point.
- Source: National Center for Education Statistics (NCES), AZ Dept. of Education
School Overview
Casa Grande Union High School's student population of 1,912 students has stayed relatively flat over five school years.
The teacher population of 87 teachers has grown by 7% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,912 students
Showing 2015–2025. Full 39-year historical data available below ↓
Total Classroom Teachers
87 teachers
Showing 2015–2025. Full 39-year historical data available below ↓
Year Founded
1920
School Calendar
Campus Size
20 acres
School Rankings
Casa Grande Union High School ranks within the bottom 50% of all 1,921 schools in Arizona (based off of combined math and reading proficiency testing data).
The diversity score of Casa Grande Union High School is 0.59, which is less than the diversity score at state average of 0.66. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1026 out of 1921 schools
(Bottom 50%)
(Bottom 50%)
Showing 2013–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
21%
34%
Showing 2013–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
39%
40%
Showing 2012–2022. Full 13-year historical data available below ↓
Science Test Scores (% Proficient)
16%
24%
Student-Teacher Ratio
22:1
17:1
Showing 2015–2025. Full 39-year historical data available below ↓
American Indian
9%
5%
Showing 2015–2025. Full 38-year historical data available below ↓
Asian
1%
3%
Showing 2015–2025. Full 38-year historical data available below ↓
Hispanic
60%
49%
Showing 2015–2025. Full 38-year historical data available below ↓
Black
4%
6%
Showing 2015–2025. Full 38-year historical data available below ↓
White
20%
33%
Showing 2015–2025. Full 38-year historical data available below ↓
Two or more races
6%
4%
Showing 2015–2025. Full 15-year historical data available below ↓
All Ethnic Groups
Showing 2015–2025. Full 38-year historical data available below ↓
Graduation Rate
69%
77.8%
Showing 2014–2023. Full 13-year historical data available below ↓
Chronically Absent Students
(22-23)66.6%
41.2%
Eligible for Free Lunch
49%
41%
Showing 2015–2025. Full 22-year historical data available below ↓
Eligible for Reduced Lunch
5%
10%
Showing 2014–2025. Full 22-year historical data available below ↓
School Statewide Testing
School District Name
Sports
Colors
Blue, Gold
School Mascot
Cougars
Source: National Center for Education Statistics (NCES), AZ Dept. of Education
Frequently Asked Questions
What is Casa Grande Union High School's ranking?
Casa Grande Union High School is ranked #1026 out of 1,921 schools, which ranks it among the bottom 50% of public schools in Arizona.
What schools are Casa Grande Union High School often compared to?
Casa Grande Union High Schoolis often viewed alongside schools like Vista Grande High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
21% of students have achieved math proficiency (compared to the 34% AZ state average), while 39% of students have achieved reading proficiency (compared to the 40% AZ state average).
What is the graduation rate of Casa Grande Union High School?
The graduation rate of Casa Grande Union High School is 69%, which is lower than the Arizona state average of 77.8%.
How many students attend Casa Grande Union High School?
1,912 students attend Casa Grande Union High School.
What is the racial composition of the student body?
60% of Casa Grande Union High School students are Hispanic, 20% of students are White, 9% of students are American Indian, 6% of students are Two or more races, 4% of students are Black, and 1% of students are Asian.
What is the student-teacher ratio of Casa Grande Union High School?
Casa Grande Union High School has a student ration of 22:1, which is higher than the Arizona state average of 17:1.
What grades does Casa Grande Union High School offer ?
Casa Grande Union High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Casa Grande Union High School part of?
Casa Grande Union High School is part of CASA Grande Union High School District (4453).
School Reviews
Review Casa Grande Union High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
When a Public School Cancels a Course Your Child Needs
Learn what parents can do when public schools cancel essential courses, including protecting graduation credits, finding approved alternatives, requesting substitutions, and preventing disruptions to college or career plans before deadlines.
Verify School Assignment Before Buying a House
Before buying a house, learn how to verify your child's assigned public school, check conflicting property listings, confirm enrollment eligibility, and avoid costly school assignment surprises before closing on a property.
School Bus Commute Times: What Parents Should Know
Discover how long school bus commutes really take, why routes vary, and what parents should ask about pickup times, student fatigue, transportation reliability, and daily schedules before choosing schools.
