Riverdale Sr High School
Port Byron, IL · Riverdale CUSD 100
Regular public school · Grades 9 - 12 · Rural, fringe
92nd of 601 Illinois high schools statewide · better than 85%▲ Improving
9622 256th St N, Port Byron, IL 61275
(309)523-3181NCES ID 173393003484Directory 2023–24
SchoolRow ranks Riverdale Sr High School 92nd of 601 Illinois high schools for 2024–25, based on Illinois Report Card 2024–25 English and Math results — better than 85% of high schools statewide. Its statewide percentile went from 72th in 2019 to 85th in 2025 — improving.
Percent meeting or exceeding the state standard, Illinois Report Card 2024–25
Percent meeting or exceeding the state standard, by student race and ethnicity. Only groups IL reports for this school appear — small groups are suppressed at the source to protect student privacy, so a missing line means too few testers, not zero. Tap a group to compare it with the IL average for that same group.
Racial and ethnic breakdown of 308 students (2023–24, NCES) — history since 1988, with comparable seven-category changes from 2010
| Group | Trend | 2010 | 2023 | Change |
|---|---|---|---|---|
| White | 94.6% | 87.3% | ▼ 7.3 pts | |
| Hispanic | 3.0% | 5.8% | ▲ 2.8 pts | |
| Two or more races | 0.6% | 4.2% | ▲ 3.6 pts | |
| Asian | 0.3% | 1.0% | ▲ 0.7 pts | |
| Black | 1.5% | 1.0% | ▼ 0.5 pts |
NCES history for this school begins in 1988. Race categories changed by 2010: earlier data combines Asian and Pacific Islander students and does not consistently identify multiracial students. The chart retains that history, while the change table uses 2010 onward.
Typical home value $311K in zip 61275 as of 2026-05 · trend since 2006
Data Provided by Zillow Group
Closest same-level schools, with 2024–25 state rank · ▲▼ = points better or worse than Riverdale Sr High School
- #263Erie High SchoolErie CUSD 1 · 10.3 mi away263rd of 601
ELA 60% ▼9 · Math 31% ▼25Compare - #119Geneseo High SchoolGeneseo CUSD 228 · 12.1 mi away119th of 601
ELA 66% ▼3 · Math 52% ▼4Compare - #471United Twp High SchoolUnited Twp HSD 30 · 12.2 mi away471st of 601
ELA 32% ▼37 · Math 25% ▼31Compare - #444Moline Sr High SchoolMoline-Coal Valley CUSD 40 · 14.3 mi away444th of 601
ELA 36% ▼33 · Math 27% ▼29Compare - #344Prophetstown High SchoolProphetstown-Lyndon-Tampico CUSD3 · 17.5 mi away344th of 601
ELA 40% ▼29Compare - #334Fulton High SchoolRiver Bend CUSD 2 · 18.1 mi away334th of 601
ELA 48% ▼21 · Math 33% ▼23Compare - #527Rock Island High SchoolRock Island SD 41 · 18.3 mi away527th of 601
ELA 28% ▼41 · Math 17% ▼39Compare - #104Orion High SchoolOrion CUSD 223 · 18.9 mi away104th of 601
ELA 66% ▼3 · Math 56% =Compare
What school district is Riverdale Sr High School in?
Riverdale Sr High School is part of the Riverdale CUSD 100 district in Port Byron, Illinois.
Is Riverdale Sr High School a good school?
SchoolRow ranks Riverdale Sr High School 92nd of 601 Illinois high schools (better than 85% statewide) based on 2024–25 test results (Illinois Report Card 2024–25).
What is the racial makeup of Riverdale Sr High School?
White 87%, Hispanic 6%, Two or more races 4%, Asian 1% (308 students, 2023–24).
How much do homes near Riverdale Sr High School cost?
The typical home value in zip code 61275 is $311K as of 2026-05 (Zillow ZHVI).
Sources: state education department data (Illinois Report Card 2024–25, low-income, chronic absenteeism), National Center for Education Statistics via the Urban Institute (enrollment, demographics, staffing), Zillow Group (home values). Rankings are computed by SchoolRow from state English and Math results within grade level; they measure test performance, not everything that makes a school good.