A+
Excellent
99/100

Challenge Charter School

📚 K – 06 🏫 School Charter School Limited Data
📍 5801 W GREENBRIAR DR, Glendale, AZ 85308
Overall
A+
99/100 · the blend of everything below
Achievement
A+
1.6 grade levels above the U.S. average · 92nd percentile in Arizona
Growth
A+
Students gain 1.54 grade levels a year (U.S. average 1.0) · 94th percentile
Resources
C+
Class size, funding, school size and type

📈 Top 15% in Arizona for growth · 📚 Top 15% in Arizona for achievement

Each score is graded separately against Arizona schools. A school can be strong at moving students forward (growth) without having the highest test scores, or the reverse. How we score schools

99
Repit Score
out of 100
392
Students
enrolled
N/A
Student:Teacher
ratio
$12K
Per Student
spending

What Goes Into This Rating

FactorWeightScoreBasis
📚 Achievement (reading & math, grades 3–8)40%92/1001.6 grade levels above the national average, 2022–25 (Stanford SEDA)
📈 Growth (how fast students learn)45%94/100Students gain 1.54 grade levels per school year in 2022–25 (national average ≈ 1.0) and gained 1.25 in 2009–19; 98th percentile in Arizona (recent period weighted 70%)
🏫 Resources (class size, funding, size, type)15%64/100Inputs from NCES school and district data

Students served: 20% students directly certified for free meals (their families receive SNAP or similar aid). Compared with Arizona schools serving a similar share of low-income students, this school’s reading and math results are +13 points better than expected. (Context only; not part of the score.)

The overall Repit Score ranks this blend against every rated school in Arizona. Schools are compared within their state because each state sets its own tests and proficiency bar. How we rate schools

Test Scores & Graduation

📖 Reading proficiency76% (+33 pts vs. state avg 43%)
Students scoring proficient on the state test, 2018–19
➗ Math proficiency67% (+25 pts vs. state avg 42%)
Students scoring proficient on the state test, 2018–19

Source: U.S. Department of Education EDFacts via the Urban Institute Education Data Portal. Federal reporting rounds small schools to ranges; we show the midpoint. Proficiency standards differ by state, so compare schools within the same state.

How Student Groups Do Here

Share of each group of students scoring proficient on the Arizona state test (2018–19), compared with the same group of students across the state. Differences between groups are shown as reported; they reflect many factors inside and outside school.

StudentsReadingMathvs. same group statewideRank in state for this group
White77%72%reading +17 pts, math +14 pts89th percentile (list)
Hispanic75%65%reading +41 pts, math +32 pts96th percentile (list)
Low-income62%47%reading +30 pts, math +16 pts87th percentile (list)

Source: U.S. Department of Education EDFacts via the Urban Institute. Groups with fewer than 20 tested students are not shown. Results are achievement (proficiency), not growth; growth by group is not published for individual schools.

School Information

Address 5801 W GREENBRIAR DR
City Glendale
ZIP Code 85308
District 0400135
NCES School ID 040013501748
Data Year 2024-25

Community Context for 85308

Understanding the community around Challenge Charter School helps evaluate the school environment and neighborhood.

💰 Income & Economy

Median Household Income $91,968
Per Capita Income $42,995
Poverty Rate 4.4%
Households Earning $100K+ 45.6%

🎓 Education Level

Bachelor's Degree or Higher 36.7%
High School or Higher 94.6%

🏠 Housing

Median Home Value $373,700
Median Rent $1,655
Owner-Occupied 72.7%
Renter-Occupied 27.3%
View full data for ZIP 85308 →

Thinking about moving into this school’s area? See what homes and rents actually cost in ZIP 85308 — values, rent, and how it compares to nearby ZIPs. Free, no signup. See 85308 housing costs →

Student Demographics

Enrollment and demographic breakdown for Challenge Charter School.

👫 Gender Distribution

Male 49.7%
Female 50.3%

🌎 Race & Ethnicity

White 52.8%
Hispanic/Latino 24.5%
Asian 10.7%
Two or More Races 6.4%
Black 5.4%
American Indian 0.3%

📋 Enrollment Summary

Total Enrollment 392
Teachers (FTE) 0.0
Student:Teacher Ratio N/A

Frequently Asked Questions

What is the Repit School Score for Challenge Charter School?
Challenge Charter School has a Repit School Score of 99 out of 100, earning a grade of A+. The score is based mainly on reading and math proficiency compared with other schools in the state, with class size and funding counting for a smaller share.
How many students attend Challenge Charter School?
Challenge Charter School has 392 students enrolled for the 2024-25 school year.
What grades does Challenge Charter School serve?
Challenge Charter School serves grades K – 06 and is classified as a School. This is a charter school.
How much funding does Challenge Charter School receive per student?
Challenge Charter School receives $11,646 in per-pupil spending from its district. This is around the national average.
🏠 Rental Market Around Challenge Charter School in 85308 ▼
Avg Home Value
$473,314
Avg Monthly Rent
$1,682
1-Year Change
-0.2%
% Renters
27.3%

Other Schools in 85308

View all schools and real estate data for 85308 →

About Repit School Scores

Parents choosing a school deserve to see what it actually delivers. Since October 2026 the Repit School Score is built mainly on results:

  • Academics (largest share) — the share of students scoring proficient in reading and math on the state test, ranked against schools of the same level in the same state.
  • Graduation (high schools) — the four-year adjusted cohort graduation rate. Only regular diplomas count; GEDs and certificates of attendance do not.
  • Resources (smaller share) — class size, per-pupil funding, school size and type.

Scores compare schools within their own state, because every state writes its own tests and sets its own proficiency bar. Full methodology

Data sources: NCES CCD 2024-25, U.S. Dept. of Education EDFacts (test results & graduation) | Last updated: October 2026