Serving 285 students in grades 9-12, Glendale Union Online 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 10-14% (which is lower than the Arizona state average of 34%). The percentage of students achieving proficiency in reading/language arts is 25-29% (which is lower than the Arizona state average of 40%).
Minority enrollment is 79% of the student body (majority Hispanic), which is higher than the Arizona state average of 67% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 285 students
- Minority Enrollment: 79%
- Graduation Rate: 20% (Btm 50% in AZ)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 10-14% (Btm 50%)
- Reading Proficiency: 25-29% (Btm 50%)
- Science Proficiency: 10-14% (Btm 50%)
- Source: National Center for Education Statistics (NCES), AZ Dept. of Education
School Overview
Glendale Union Online's student population of 285 students has declined by 9% over five school years.
Grades Offered
Grades 9-12
(Exclusively virtual)
(Exclusively virtual)
Total Students
285 students
Total Classroom Teachers (20-21)
16 teachers
School Rankings
Glendale Union Online 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 Glendale Union Online is 0.63, 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
#1440 out of 1921 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
10-14%
34%
Reading/Language Arts Test Scores (% Proficient)
25-29%
40%
Science Test Scores (% Proficient)
10-14%
24%
Student-Teacher Ratio
n/a
17:1
American Indian
4%
5%
Asian
5%
3%
Hispanic
57%
49%
Black
8%
6%
White
21%
33%
Hawaiian
1%
n/a
Two or more races
4%
4%
All Ethnic Groups
Graduation Rate
20%
77%
Eligible for Reduced Lunch (19-20)
12%
7%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), AZ Dept. of Education
Frequently Asked Questions
What is Glendale Union Online's ranking?
Glendale Union Online is ranked #1440 out of 1,921 schools, which ranks it among the bottom 50% of public schools in Arizona.
What percent of students have achieved state testing proficiency in math and reading?
10-14% of students have achieved math proficiency (compared to the 34% AZ state average), while 25-29% of students have achieved reading proficiency (compared to the 40% AZ state average).
What is the graduation rate of Glendale Union Online?
The graduation rate of Glendale Union Online is 20%, which is lower than the Arizona state average of 77%.
How many students attend Glendale Union Online?
285 students attend Glendale Union Online.
What is the racial composition of the student body?
57% of Glendale Union Online students are Hispanic, 21% of students are White, 8% of students are Black, 5% of students are Asian, 4% of students are American Indian, 4% of students are Two or more races, and 1% of students are Hawaiian.
What grades does Glendale Union Online offer ?
Glendale Union Online offers enrollment in grades 9-12 (Exclusively virtual).
What school district is Glendale Union Online part of?
Glendale Union Online is part of Glendale Union High School District (4285).
School Reviews
Review Glendale Union Online. 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
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.
