School District · Illinois
Riverdale Community Unit School District 100
📍 Hillsdale, IL · Rock Island County · NCES LEAID 1733930
District Contact & Information
Source: NCES CCD 2024–25
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Grades Served
Pre-K – 12th
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District Mailing Address
9624 256th St N, Port Byron, IL 61275
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NCES District ID (LEAID)
1733930
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District Type
Public School District
Schools in Riverdale Community Unit School District 100
3 schools listed
Zip Codes Served by Riverdale Community Unit School District 100
3 zip codes
Frequently Asked Questions
What zip codes are in Riverdale Community Unit School District 100?▼
Riverdale Community Unit School District 100 serves 3 zip codes: 61257, 61275, 61278. Zip codes and district boundaries do not line up exactly, so confirm your exact address with the district office before you rely on an assignment.
How is Riverdale Community Unit School District 100 rated?▼
Riverdale Community Unit School District 100 has an overall rating of 8 out of 10 (Good), based on the share of students proficient in reading and math on state assessments (IAR 2023–24). That places it in the 78th percentile among Illinois school districts. Ratings are percentile-ranked within Illinois only and are not comparable across states.
How many students attend Riverdale Community Unit School District 100?▼
The NCES Common Core of Data directory reports enrollment of 1,092 students across 3 schools for Riverdale Community Unit School District 100.
What grades does Riverdale Community Unit School District 100 serve?▼
Riverdale Community Unit School District 100 is listed in the NCES directory as serving grades Pre-K – 12th.
What schools are in Riverdale Community Unit School District 100?▼
NCES lists 3 schools operating under Riverdale Community Unit School District 100: 1 elementary, 1 middle, 1 high. 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 Riverdale Community Unit School District 100?▼
You can reach Riverdale Community Unit School District 100 by phone at (309)523-3184 or online at www.riverdaleschools.org or by mail at 9624 256th St N, Port Byron, IL 61275. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.
About Riverdale Community Unit School District 100
Riverdale Community Unit School District 100 is a public school district serving 3 zip codes in Illinois, primarily in Rock Island County. It carries an overall rating of 8/10 (Good), the 78th percentile among Illinois districts. That rating reflects the share of students proficient in reading and math on state assessments (IAR 2023–24) 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 3 schools operating under Riverdale Community Unit School District 100 — 1 elementary, 1 middle and 1 high. The largest by enrollment is Riverdale Elem School with 517 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 (309)523-3184 before making a housing decision.