School District · Illinois
Cass School District 63
📍 Darien, IL · DuPage County · NCES LEAID 1708790
District Contact & Information
Source: NCES CCD 2024–25
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District Mailing Address
8502 Bailey Rd, Darien, IL 60561
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NCES District ID (LEAID)
1708790
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District Type
Public School District
Schools in Cass School District 63
2 schools listedFrequently Asked Questions
What zip codes are in Cass School District 63?▼
Cass School District 63 is a city district whose boundary does not contain the centre point of any zip code area, so we cannot list its zip codes from the national boundary data we use. Zip codes and district boundaries do not line up exactly in any case — confirm your address with the district office before relying on an assignment.
How is Cass School District 63 rated?▼
Cass School District 63 has an overall rating of 9 out of 10 (Excellent), based on the share of students proficient in reading and math on state assessments (NCES EDFacts). That places it in the 85th percentile among Illinois school districts. Ratings are percentile-ranked within Illinois only and are not comparable across states.
How many students attend Cass School District 63?▼
The NCES Common Core of Data directory reports enrollment of 775 students across 2 schools for Cass School District 63.
What grades does Cass School District 63 serve?▼
Cass School District 63 is listed in the NCES directory as serving grades Pre-K – 8th.
What schools are in Cass School District 63?▼
NCES lists 2 schools operating under Cass School District 63: 1 elementary, 1 middle. Each school's grade span, enrollment and city are listed on this page. Attendance zones are set by the district and a school on this list is not necessarily the one your address is assigned to.
How do I contact Cass School District 63?▼
You can reach Cass School District 63 by phone at (331)481-4000 or online at www.cassd63.org or by mail at 8502 Bailey Rd, Darien, IL 60561. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.
About Cass School District 63
Cass School District 63 is a public school district in Illinois, in DuPage County. It carries an overall rating of 9/10 (Excellent), the 85th percentile among Illinois districts. That rating reflects the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts with a 2017–18 fallback for the rest) and is ranked only against other Illinois districts — scores are not comparable between states. Directory details on this page come from the NCES Common Core of Data, 2024–25.
Schools in this district
NCES lists 2 schools operating under Cass School District 63 — 1 elementary and 1 middle. The largest by enrollment is Concord Elem School with 460 students. School-level enrollment comes from the NCES Common Core of Data school directory; a school with no reported enrollment is shown with a dash rather than a zero.
Checking your own address
District boundaries are address-specific and do not follow zip code lines exactly — a single zip code can
be split between two or more districts. Use the zip codes listed above as a starting point, then confirm your
assignment with the district office at (331)481-4000 before making a housing decision.