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Average

#1447 of 3,813 schools in IL

Top 38% in state

Comm H S Dist 99 - South High Sch

High School · CHSD 99

1436 Norfolk St, Downers Grove, IL 60516

Enrollment

2,604

Student-Teacher

14.5:1

Score

6.7

Grades

9th – 12th

Data vintage2022-23

How this school compares

Illinois schools

#1,447 of 3,813

In Downers Grove

#10 of 17

public schools

In district

#2 of 2

CHSD 99

Academic growth

8.9 / 10

Excellent

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Comm H S Dist 99 - South High Sch

6.7/10

High School in Downers Grove · grades 9th – 12th. Start here, then compare fit against nearby and district options.

Kingsley Elem School

7.4/10

0.3 mi away. Use as a geographic alternative in the same move search.

Indian Trail Elem School

5.8/10

0.5 mi away. Use as a geographic alternative in the same move search.

About Comm H S Dist 99 - South High Sch

Comm H S Dist 99 - South High Sch is a public high school in Downers Grove, IL, part of CHSD 99. Comm H S Dist 99 - South High Sch serves approximately 2,604 students, and covers grades 9th-12th, and has a 14.5:1 student-teacher ratio. Comm H S Dist 99 - South High Sch has a current MySchoolScout rating of 6.7 out of 10 and ranks #1,447 of 3,813 schools in IL.

Structured state assessment records for Comm H S Dist 99 - South High Sch show 54% math proficiency (multi-year average, 2009-2021) and 50% reading/ELA proficiency (multi-year average, 2009-2022).

How it compares1.0 pts below district
  • This school 6.7 · Average
  • District avg 7.8
  • IL avg 6.6

What Parents Should Know

Comm H S Dist 99 - South High Sch is a large school: 2,604 students. Size usually brings more course choices and activities than a smaller school can staff, but kids can also blend into the crowd. Ask how the school keeps students known and supported.

34% of students at Comm H S Dist 99 - South High Sch were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.

Score Breakdown

Full Profile · 4/4 metrics
Student Progress8.9Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-2.87 pts/yr
Data Period2009–2022
TrendDeclining
Academics6.6Average25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency41% (2021 EdFacts)
Reading/ELA Proficiency34% (2022 EdFacts)
Overall Proficiency38% (2022 EdFacts, Math+ELA)
Expected (poverty-adj.)49% (model expectation from 2022 EdFacts)
vs. Expected-11.9 pts
Adjusted Percentile50th
College Readiness4.3Below Average30%
Graduation rates, AP course participation, and IB availability.
View breakdown
AP Participation14%
IB ProgramNo
Resources & Environment7.7Very Good20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio14.5:1
Per-Pupil Spending$26,343
Chronic Absenteeism34.1%

Comm H S Dist 99 - South High Sch — Students at Comm H S Dist 99 - South High Sch score 38% proficient, which is below what's typical for similar communities (expected: 49%).

How we calculate scores →

Test Scores IL EDFACTS (2021-22)

Math Proficiency 53.5% (multi-year average, 2009-2021)
School
State
N/A
ELA Proficiency 49.8% (multi-year average, 2009-2022)
School
State
N/A

Based on 27 test records from IL state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
75%
ELA
69%
2010
Math
70%
ELA
63%
2011
Math
73%
ELA
64%
2012
Math
68%
ELA
68%
2013
Math
68%
ELA
67%
2014
Math
30%
ELA
41%
2015
Math
32%
ELA
31%
2016
Math
53%
ELA
50%
2017
Math
48%
ELA
42%
2018
Math
48%
ELA
43%
2019
Math
48%
ELA
43%
2020*
Math
41%
ELA
41%
2021*
Math
41%
ELA
41%
2022
ELA
34%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 8.9/10.

How Comm H S Dist 99 - South High Sch Compares

See how Comm H S Dist 99 - South High Sch performs across key quality dimensions compared to state benchmarks.

Overall Score
6.7/10
62th percentile in IL
Academic
6.6/10
Average
Growth
8.9/10
Excellent
Environment
7.7/10
Very Good
AP Courses
4
State avg: 2.7
Sports
29
13 boys' · 16 girls'
Advanced STEM
5/5
Subjects offered

Funding & Resources

Teaching Staff
15:1 student-teacher ratio
179 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
34.1%

Programs & Offerings

AP/IB Programs4 AP courses offered
14% participation·State avg: 2.7 AP courses·CRDC 2021-22
Athletics29sports offered
13 boys'·16 girls'·60 teams (incl. JV)·CRDC 2021-22
Advanced STEM Courses5 of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

1436 Norfolk St, Downers Grove, IL 60516

Nearby Alternatives

Families considering Comm H S Dist 99 - South High Sch may also want to explore other high schools in the area. Thomas Jefferson Jr High School (rated 8.4/10, 1.6 miles away, in nearby Woodridge), which scores notably higher. Another option is AVERY COONLEY SCHOOL (rated 8.2/10, 1.2 miles away), which scores notably higher. Additionally, William F Murphy Elem School (rated 8.0/10, 2.0 miles away, in nearby Woodridge), which scores notably higher. For more schools in Downers Grove, see our Downers Grove schools guide .

Nearby Schools

20 within 2.0 mi
School Distance Rating
Kingsley Elem School Downers Grove 0.3 mi 7.4
Indian Trail Elem School Downers Grove 0.5 mi 5.8
Hillcrest Elem School Downers Grove 0.7 mi 5.5
AVERY COONLEY SCHOOL Downers Grove 1.2 mi 8.2
PATHWAY MONTESSORI Downers Grove 1.1 mi
DOWNERS GROVE ADVENTIST SCHOOL Downers Grove 1.1 mi
ABRAXAS NAPERVILLE BRIDGE Woodridge 1.1 mi 6.1
Fairmount Elem School Downers Grove 1.1 mi 7.1
O Neill Middle School Downers Grove 1.2 mi 5.7
GOOD SHEPHERD LUTHERAN ACADEMY Downers Grove 1.1 mi 6.1
El Sierra Elem School Downers Grove 1.2 mi 5.9
DOWNERS GROVE CHRISTIAN SCHOOL Downers Grove 1.6 mi 6.2
Thomas Jefferson Jr High School Woodridge 1.6 mi 8.4
Meadowview Elem School Woodridge 1.5 mi 7.8
ST JOSEPH Downers Grove 2.0 mi 5.0
Whittier Elem School Downers Grove 1.8 mi 7.8
William F Murphy Elem School Woodridge 2.0 mi 8.0
ST SCHOLASTICA PARISH SCHOOL Woodridge 2.1 mi 7.3
Henry Puffer School Downers Grove 2.1 mi 7.5
MARQUETTE MANOR BAPTIST ACADEMY Downers Grove 2.0 mi 6.7

Neighborhood Census ACS (2019-2023)

Census data for ZIP 60516 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$118,780

Median Home Value

$423,000

Median Rent

$1,636/mo

Population

28,594

College Educated

53.9%

Homeownership

77.6%

Avg Commute

29 min

Poverty Rate

4%

Median Age

42

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Bradley-Bourbonnais C High School Bradley, IL 6.7
Joliet West High School Joliet, IL 6.7
McHenry Community High School Mchenry, IL 6.7
Collinsville High School Collinsville, IL 6.6
DD Eisenhower High Sch (Campus) Blue Island, IL 6.6
J Sterling Morton East High Sch Cicero, IL 6.6

Frequently Asked Questions

Common questions about Comm H S Dist 99 - South High Sch

What grades does Comm H S Dist 99 - South High Sch serve?

Comm H S Dist 99 - South High Sch serves students in grades 9th through 12th.

How many students attend Comm H S Dist 99 - South High Sch?

Comm H S Dist 99 - South High Sch has an enrollment of approximately 2,604 students.

What is the student-teacher ratio at Comm H S Dist 99 - South High Sch?

The student-teacher ratio at Comm H S Dist 99 - South High Sch is 14.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Comm H S Dist 99 - South High Sch rank in IL?

Comm H S Dist 99 - South High Sch ranks #1,447 of 3,813 schools in IL.

What is Comm H S Dist 99 - South High Sch's MySchoolScout rating?

Comm H S Dist 99 - South High Sch has a current MySchoolScout rating of 6.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Comm H S Dist 99 - South High Sch?

Based on loaded state assessment records, Comm H S Dist 99 - South High Sch has 54% math proficiency (multi-year average, 2009-2021) and 50% reading/ELA proficiency (multi-year average, 2009-2022).

Is Comm H S Dist 99 - South High Sch a charter school?

No, Comm H S Dist 99 - South High Sch is not a charter school. It is a traditional public school operated by the local school district.

Is Comm H S Dist 99 - South High Sch a Title I school?

No, Comm H S Dist 99 - South High Sch is not currently a Title I school.

11 schools nearby View map →

Neighborhood Context

Walk Score
29 Car-Dependent
Transit Score
21 Minimal Transit
Bike Score
44 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
9th – 12th
Enrollment
2,604
Student-Teacher Ratio
14.5:1
Teachers (FTE)
179
Type
regular
Setting
Small City
County
DuPage County
Chronic Absenteeism (SY 2022-23)
34.1%

District

CHSD 99
District Enrollment
4,708
Schools in District
2
Per-Pupil Spending
$26,343
District Rank
#2 of 2

Other Schools in This District

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