Total enrollment
16,040
-422 (-3%) vs SY 2020-21
11 schools in Glendale Union High School District (4285)
Arizona · 16,040 students · 2 cities
Parents inside Glendale Union High School District (4285) pick from 11 public K-12 options, with combined enrollment of about 16,040 students (an average school size of 1458).
4-year change in Glendale Union High School District (4285)
SY 2020-21 vs SY 2024-25School count
11
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Glendale Union High School District (4285) ranks
Among districts| Measure | This district | In Arizona | In the US |
|---|---|---|---|
| Enrollment ranked largest first | 16,040 | #12 of 156 | #519 of 9,234 |
| Number of schools ranked most first | 11 | #35 of 156 | N/A |
| Students per teacher ranked fewest first | 21.8:1 | #136 of 153 | #8,667 of 9,044 |
| Diversity index ranked most diverse first | 55.7% | #49 of 123 | #2,236 of 6,853 |
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Inside Glendale Union High School District (4285)
Since 2017-18, the 10 district schools that reported both years went from 14,949 to 15,755 students (up 5%) and from 726 to 724 full-time teachers (unchanged), as of 2024-25.
Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.
| Name | City | Level | Grades | Enrollment |
|---|---|---|---|---|
| Sunnyslope High School | Phoenix | High | 09-12 | 2,322 |
| Apollo High School | Glendale | High | 09-12 | 2,152 |
| Independence High School | Glendale | High | 09-12 | 1,907 |
| Glendale High School | Glendale | High | 09-12 | 1,734 |
| Washington High School | Phoenix | High | 09-12 | 1,659 |
| Thunderbird High School | Phoenix | High | 09-12 | 1,592 |
| Moon Valley High School | Phoenix | High | 09-12 | 1,471 |
| Greenway High School | Phoenix | High | 09-12 | 1,318 |
| Cortez High School | Phoenix | High | 09-12 | 1,132 |
| Glendale Union High School District Online Learning Academy | Glendale | High | 09-12 | 468 |
| Glendale Union Online | Glendale | High | 09-12 | 285 |
About Glendale Union High School District (4285)
Glendale Union High School District (4285) is a small public-school district in Arizona. The district maintains 11 schools and instructs approximately 16,040 students.
Average enrollment per school in Glendale Union High School District (4285) is about 1,458, higher than the Arizona average of roughly 508.
Over the past 4-year window. Total public-school enrollment in Glendale Union High School District (4285) has declined 3% since SY 2020-21, moving from about 16,462 students to 16,040.
Within the allk12 community for this area, the community for Glendale Union High School District (4285) discusses open enrollment windows, redistricting talk, and busing logistics. Discussions cut across districts, schools, and grade levels.