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A

Cass School District 63

Public school districtGrades PK–8

Serves Darien, and parts of Downers Grove Township.

Darien’s School Grade A better than 86% of Illinois school districts

Students
773
Schools
2
Spent per student
$19,128
IL $21,567
Students per teacher
12:1
Free or reduced lunch
23%
Debt
$16.6M
fiscal 2024
The gist

What stands out about Cass School District 63

  • Its letter, A: results better than 92% of Illinois districts
  • Math proficiency 11 pts above the state
  • Reading proficiency 22 pts above the state
  • Spends 11% less per student than the IL average
  • 12 students per teacher
  • Debt of $16.6M, about $21,429 per student
The School Grade

What this district adds to its towns’ grade

A: better than 92% of the 887 Illinois school districts we grade. Each town’s School Grade weighs its districts by the students they test; spending and class size are shown but don’t count.

Test scoresReading and math well above the state, 2021–22
A
The town it serves, and its School Grade
ADarien 22,032

How TownRatings grades schools →

Where would my kid go?

The school path for Darien. Grade by grade →

PK–23 elementary schoolsThis district
3–53 elementary schoolsThis district
6–83 middle schoolsDarien School District 61
9–124 high schoolsCommunity High School District 99

Test scores vs. IL

2020–21 · 2021–22
Math proficiency35–39%
State average 25.8% · 77 students tested
Reading / language arts52%
State average 29.9% · 486 students tested

Graduation rate 93% at Chsd 99, which runs the high school (state 87.6%) · class of 2023.

Reported to the U.S. Department of Education (EDFacts via ED Data Express and the Urban Institute); the newest year for each measure.

Where the money goes

fiscal 2024
$19,128 per student · 11% below IL
Spending
Classroom instruction 59%Support & administration 39%Other 2%
Paid for by
Local (mostly property tax) 67%State 25%Federal 8%

Fiscal 2022–24 includes federal pandemic relief (ESSER).

U.S. Census Bureau, Annual Survey of School System Finances.

Enrollment over time
792’20
802’21
775’22
790’23
773’24

About steady since 2020–21.

Students
White 66%Asian 15%Hispanic 8%Two or more races 6%Black 4%American Indian/Alaska Native 1%Native Hawaiian/Pacific Islander <1%

Schools in the district

2 public schools. Each public school’s letter compares its own 2020–21 reading and math results with Illinois’s other public schools.

Concord Elem School
Elementary · Grades PK–4 · Darien
460 students12:1
Cass Jr High School
Middle · Grades 5–8 · Darien
A
313 students12:1

Nearby districts

Compare spending and schools next door.

Community High School District 99Downers Grove, Lisle Township, Westmont
$28,322per student
Hinsdale Township High School District 86Hinsdale, Oak Brook, Westmont
$33,501per student
Maercker School District 60Westmont, Willowbrook
$20,153per student
Woodridge School District 68Lisle Township, Woodridge
$22,589per student

District facts: U.S. Department of Education (NCES school directory 2024–25 and district boundaries) and the U.S. Census Bureau’s school finance survey. Test scores and graduation: state results reported to the U.S. Department of Education (EDFacts via ED Data Express and the Urban Institute). The letters are our own summary, graded within Illinois.