Enrollment
285
Arizona · 2024-25 NCES data
High school (grades 9-12) · Glendale, AZ
Glendale Union Online
Federal NCES profile for Glendale Union Online, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 20/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 040345003510
📚 AP courses 10
🌟 Gifted program 30
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Glendale Union Online earns 20/100 on the Resource Investment Index on federal resource data.
- #7 of 15
- high schools in Glendale · Resource Index
- 20
- Resource Index · Lower
- 285
- students enrolled
By Resource Investment Index, Glendale Union Online ranks #7 of 15 high schools in Glendale, AZ.
School address
District: Glendale Union High School District (4285) · Arizona
NCES ID 040345003510 Verify on NCES CCD record →
What stands out at Glendale Union Online
Glendale Union Online is a mid-sized high school in Glendale, Arizona, enrolling 285 students.
With 285 students, its enrollment sits close to the Arizona median campus size.
Its Resource Investment Index sits near the middle of the pack among 2,064 scored Arizona schools.
Its student body is led by Hispanic or Latino (57%) and White (21%) (diversity index 62/100).
No Advanced Placement courses are reported for this campus in the federal data.
The surrounding Glendale Union High School District (4285) spends $10,022 per pupil, 24% below the Arizona average, a leaner-resourced district than most.
Its district draws 15.4% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Glendale's high schools, it stands alongside Ombudsman Online Academy (469 students): Glendale Union Online is smaller than that campus by headcount.
Glendale Union High School District (4285) also operates Sunnyslope High School (2,322 students) and Apollo High School (2,152 students) alongside Glendale Union Online.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Glendale Union Online compares
Glendale Union Online on the metrics families compare, against Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Enrollment | 285 | top 64% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
285
Bigger than 30% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Funding equity
$10,022
per pupil, district-wide
- below Arizona avg of $13,145
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 2 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.7 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 57.2%
White 21.4%
African American 8.1%
Asian 4.6%
American Indian / Alaska Native 4.2%
Two or More 3.5%
Native Hawaiian / Pacific Islander 1.1%
Largest group: Hispanic or Latino at 57.2% of enrollment.
Student-body diversity index 61.5/100
Simpson diversity index - at 61.5, Glendale Union Online is more mixed than the Arizona school average of 47.2.
Programs
AP program Not offered
Funding & spending
District-wide per-pupil expenditure for Glendale Union High School District (4285), which includes Glendale Union Online.
$10,022
Per student
-24%
vs Arizona
Avg $13,145
-40%
vs U.S.
Avg $16,593
Revenue mix
Local 35.6%
State 49.0%
Federal 15.4%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Glendale Union Online Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sunnyslope High School | Larger | No free-lunch data | No ratio data |
| Apollo High School | Larger | No free-lunch data | No ratio data |
| Independence High School | Larger | No free-lunch data | No ratio data |
| Glendale High School | Larger | No free-lunch data | No ratio data |
| Washington High School | Larger | No free-lunch data | No ratio data |
Comparisons are relative to Glendale Union Online's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,322
- Students per teacher
- 24.7:1
- Resource Index
- 18/100
- Enrollment
- 2,152
- Students per teacher
- 23.4:1
- Resource Index
- 23/100
- Enrollment
- 1,907
- Students per teacher
- 22.2:1
- Resource Index
- 26/100
- Enrollment
- 1,734
- Students per teacher
- 20.9:1
- Resource Index
- 37/100
- Enrollment
- 1,659
- Students per teacher
- 21.5:1
- Resource Index
- 22/100
Similar high schools in Glendale
4 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Arizona, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Glendale Union Online's federal record.
- Compare Glendale Union Online against another school. Compare schools
- Glendale Union High School District (4285)'s spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Glendale Union Online
How many students attend Glendale Union Online?
Glendale Union Online has 285 students enrolled. It is a high school in Glendale, AZ.
What is the racial and ethnic makeup of Glendale Union Online?
The largest demographic group at Glendale Union Online is Hispanic or Latino at 57.2% of enrollment, in Glendale, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.5/100.
What is the Resource Investment Index for Glendale Union Online?
Glendale Union Online has a Resource Investment Index of 20/100 (lower reported resources relative to schools nationally) based on 2 factors: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
How does Glendale Union Online rank among high schools in Glendale?
By Resource Investment Index, Glendale Union Online ranks #7 of 15 high schools in Glendale, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Glendale on the city page.
Is Glendale Union Online a good school?
Glendale Union Online earns 20/100 on the Resource Investment Index on federal resource data. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Glendale Union High School District (4285)?
Besides Glendale Union Online, Glendale Union High School District (4285) also operates Sunnyslope High School (2,322 students), Apollo High School (2,152 students), and Independence High School (1,907 students). See the Glendale Union High School District (4285) district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.