A+
Excellent
97/100

Comm H S Dist 99 - North H S

📚 09 – 12 🏫 High School
📍 4436 Main St, Downers Grove, IL 60515
Overall
A+
97/100 · the blend of everything below
Achievement
A+
Reading 52% · Math 53% proficient · 96th percentile in Illinois
Graduation
A+
96% earn a regular diploma in 4 years
Resources
B+
Class size, funding, school size and type

📚 Top 15% in Illinois for achievement

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

97
Repit Score
out of 100
2,104
Students
enrolled
13.8:1
Student:Teacher
ratio
$29K
Per Student
spending

What Goes Into This Rating

FactorWeightScoreBasis
📚 Academics (reading & math)55%96/100reading 95th percentile, math 97th percentile among Illinois high schools (2020–21 state tests)
🎓 Graduation (4-year, diploma only)25%88/10096% graduate on time with a regular diploma
🏫 Resources (class size, funding, size, type)20%84/100Inputs from NCES school and district data

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

Test Scores & Graduation

📖 Reading proficiency52% (+26 pts vs. state avg 26%)
Students scoring proficient on the state test, 2020–21
➗ Math proficiency53% (+31 pts vs. state avg 22%)
Students scoring proficient on the state test, 2020–21
🎓 Graduation rate96% (+11 pts vs. state avg 85%)
Four-year adjusted cohort graduation rate, class of 2018

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 Illinois state test (2020–21), 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
White56%59%reading +15 pts, math +22 pts94th percentile (list)
Hispanic27%22%reading +9 pts, math +7 pts76th percentile (list)
Asian75%75%reading +11 pts, math +9 pts79th percentile (list)
Low-income52%53%reading +20 pts, math +25 pts95th 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 4436 Main St
City Downers Grove
ZIP Code 60515
District 1712570
NCES School ID 171257001518
Data Year 2024-25

Community Context for 60515

Understanding the community around Comm H S Dist 99 - North H S helps evaluate the school environment and neighborhood.

💰 Income & Economy

Median Household Income $116,601
Per Capita Income $69,093
Poverty Rate 2.3%
Households Earning $100K+ 56.2%

🎓 Education Level

Bachelor's Degree or Higher 61.0%
High School or Higher 97.9%

🏠 Housing

Median Home Value $437,300
Median Rent $1,460
Owner-Occupied 77.2%
Renter-Occupied 22.8%
View full data for ZIP 60515 →

Thinking about moving into this school’s area? See what homes and rents actually cost in ZIP 60515 — values, rent, and how it compares to nearby ZIPs. Free, no signup. See 60515 housing costs →

Student Demographics

Enrollment and demographic breakdown for Comm H S Dist 99 - North H S.

👫 Gender Distribution

Male 50.4%
Female 49.4%

🌎 Race & Ethnicity

White 69.4%
Hispanic/Latino 14.5%
Asian 6.1%
Black 4.7%
Two or More Races 4.7%
American Indian 0.2%
Pacific Islander 0.3%

📋 Enrollment Summary

Total Enrollment 2,104
Teachers (FTE) 152.1
Student:Teacher Ratio 13.8:1

Frequently Asked Questions

What is the Repit School Score for Comm H S Dist 99 - North H S?
Comm H S Dist 99 - North H S has a Repit School Score of 97 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, plus the on-time graduation rate, with class size and funding counting for a smaller share.
How many students attend Comm H S Dist 99 - North H S?
Comm H S Dist 99 - North H S has 2,104 students enrolled for the 2024-25 school year. The student-to-teacher ratio is 13.8:1.
What grades does Comm H S Dist 99 - North H S serve?
Comm H S Dist 99 - North H S serves grades 09 – 12 and is classified as a High School. This is a public school.
How much funding does Comm H S Dist 99 - North H S receive per student?
Comm H S Dist 99 - North H S receives $29,056 in per-pupil spending from its district. This is above the national average.
🏠 Rental Market Around Comm H S Dist 99 - North H S in 60515 ▼
Avg Home Value
$519,194
Avg Monthly Rent
$2,327
1-Year Change
+10.1%
% Renters
22.8%

Other Schools in 60515

View all schools and real estate data for 60515 →

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