B+
Riverdale Sr High School
PublicHighGrades 9–12
9622 256th St N, Port Byron, IL 61275 · (309) 523-3181 · Part of Riverdale Community Unit School District 100
Students
324
Students per teacher
12:1
Free or reduced lunch
16%
Setting
Rural
Grades
9–12
What stands out about Riverdale Sr High School
- Small classes: 12:1 students per teacher
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency27%
State average 25.9%
Reading / language arts32%
State average 30.7%
Location
Directions ↗
9622 256th St N, Port Byron
Students
Enrollment by grade
Grade 990
Grade 1089
Grade 1178
Grade 1267
Enrollment over time
328’20
320’21
312’22
308’23
324’24
About steady.
Who goes here
White 89%Hispanic 6%Two or more races 4%Black <1%Asian <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Riverdale Sr High School.
Other schools in Riverdale Community Unit School District 100
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.