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Riverdale Senior High School

Public Grades 9-12
165th
SchoolDigger Rank ?
of 698 Illinois High Schools
Better than 76% of Illinois high schools
Summary

Riverdale Senior High School is a public high school located in Port Byron, Illinois, serving grades 9-12 with a total enrollment of 308 students. This school is part of the Riverdale CUSD 100 district, which is ranked 179 out of 811 districts in Illinois and has a 4-star rating from SchoolDigger.

Riverdale Senior High School consistently performs above the state average in academic assessments, with 68.8% of 11th-grade students proficient or better in ACT English Language Arts, compared to the state average of 51.7%, and 55.8% of 11th-grade students proficient or better in ACT Mathematics, compared to the state average of 39.3%. The school also maintains a high graduation rate of 98.5%, significantly higher than the state average. While the school has seen some fluctuations in chronic absenteeism rates, the 2024-2025 rate of 19.9% is lower than the state average. Riverdale Senior High School has shown strong performance across various student subgroups, ranking 141 out of 685 Illinois high schools for female students and 187 out of 685 for male students, both rated 4 SchoolDigger stars.

Compared to nearby schools, Riverdale Senior High School generally outperforms in academic metrics, such as ACT/SAT proficiency rates and PreACT Secure assessments. For example, Riverdale's 11th-grade ACT English Language Arts proficiency rate of 68.8% is significantly higher than the rates of Fulton High School (47.8%), Rock Island High School (27.9%), and Prophetstown High School (40%). Additionally, Riverdale Senior High School has a relatively low percentage of free and reduced-price lunch recipients, at 15.91% in the 2023-2024 school year, compared to higher rates at nearby schools like Rock Island High School (56.93%) and Prophetstown High School (58.8%).

324
Students ?
11.8
Student/teacher ratio ?
$13,973
Per pupil spending ?
16%
Free/discounted lunch ?
 9622 256th St N
       Port Byron, IL  61275-9054

(309) 523-3181

District: Riverdale CUSD 100


Feeder schools for Riverdale Senior High School:

Elementary:    Riverdale Elementary School
Middle:    Riverdale Middle School
Racial breakdown:

White:
88.6%
Hispanic:
5.9%
Two or more races:
3.7%
more
 See top rated Illinois high schools

 Compare Riverdale Senior High School to nearby high schools!
At a glance
Ranking trend: Improving — 40th percentile in 2015 → 76th in 2025
Strengths
Test scores above the Illinois average (53% vs 48% meeting standards)
Ranks in the top 24% of Illinois high schools
98% graduate in 4 years — above the Illinois average (89%)
Worth a look
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2024-2025) ?
This school53%
District avg53%
Illinois avg48%
165th of 698
Illinois public high schools ?
Top 24%▲ up 37 pts since 2015
From bottom 40% (2015) to top 24% (2025)
See the entire ranking list of Illinois High Schools →
SchoolDigger rating ?
179th of 811Riverdale CUSD 100 among Illinois districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankIllinois percentileRating
202571.0165 of 69876.4%★★★★☆
202475.1138 of 69780.2%★★★★☆
202371.7154 of 69978.0%★★★★☆
202266.8197 of 69971.8%★★★★☆
202169.0174 of 68874.7%★★★★☆
201968.4177 of 70174.8%★★★★☆
201856.3266 of 64758.9%★★★☆☆
201761.3232 of 64263.9%★★★☆☆
201658.7200 of 64368.9%★★★☆☆
201537.0370 of 61439.7%★★☆☆☆
201463.4250 of 67062.7%★★★☆☆
201363.5272 of 67059.4%★★★☆☆
201273.4169 of 66574.6%★★★★☆
201170.2217 of 65566.9%★★★☆☆
201070.2181 of 64371.9%★★★★☆
200956.1307 of 63251.4%★★★☆☆
200874.6147 of 62476.4%★★★★☆
200761.8241 of 61260.6%★★★☆☆
200667.2193 of 59667.6%★★★☆☆
200567.1192 of 59067.5%★★★☆☆
200485.261 of 59289.7%★★★★☆
200378.6103 of 58682.4%★★★★☆

Disabled

YearAvg scoreStatewide rankIllinois percentileRating
202558.3123 of 49174.9%★★★★☆

Female

YearAvg scoreStatewide rankIllinois percentileRating
202574.3141 of 68579.4%★★★★☆
202457.0230 of 66465.4%★★★☆☆
202368.6167 of 65674.5%★★★★☆
202266.2198 of 65869.9%★★★★☆
202163.7198 of 63969.0%★★★☆☆
201972.2150 of 66577.4%★★★★☆
201840.0387 of 62037.6%★★☆☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankIllinois percentileRating
202530.8499 of 67225.7%★☆☆☆☆
202459.2203 of 63968.2%★★★☆☆
202344.4348 of 64446.0%★★☆☆☆
202278.866 of 62689.5%★★★★☆
202155.3209 of 61165.8%★★★☆☆
201866.1145 of 58575.2%★★★★☆

Male

YearAvg scoreStatewide rankIllinois percentileRating
202565.7187 of 68572.7%★★★★☆
202480.9102 of 66884.7%★★★★☆
202370.9150 of 66877.5%★★★★☆
202264.1199 of 66470.0%★★★★☆
202169.2159 of 65375.7%★★★★☆
201956.5249 of 67563.1%★★★☆☆
201863.6200 of 61967.7%★★★☆☆

Special Education

YearAvg scoreStatewide rankIllinois percentileRating
202539.3243 of 52753.9%★★★☆☆
202248.6151 of 49369.4%★★★☆☆
202145.0175 of 45361.4%★★★☆☆
201929.6306 of 47335.3%☆☆☆☆☆

White

YearAvg scoreStatewide rankIllinois percentileRating
202555.2214 of 56462.1%★★★☆☆
202466.7149 of 55473.1%★★★★☆
202353.8221 of 55760.3%★★★☆☆
202250.5255 of 56054.5%★★★☆☆
202153.8214 of 55361.3%★★★☆☆
201952.0221 of 55260.0%★★★☆☆
201846.1266 of 54851.5%★★★☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Female (2025)79th percentile+3 vs school
Disabled (2025)75th percentile~ school
Male (2025)73rd percentile-4 vs school
White (2025)62nd percentile-14 vs school
Special Education (2025)54th percentile-22 vs school
Low Socio Economic Status (2025)26th percentile-51 vs school
By subject vs Illinois (2024-2025) ?
English Language Arts69%+17 vs state
Science61%+12 vs state
Mathematics56%+16 vs state

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Frequently Asked Questions about Riverdale Senior High School

Students at Riverdale Senior High School are 89% White, 6% Hispanic, 4% Two or more races.

Riverdale Senior High School is fed by the following schools:

Elementary : Riverdale Elementary School
Middle : Riverdale Middle School

Riverdale Senior High School ranks 165th of 698 Illinois high schools. SchoolDigger rates this school 4 stars out of 5.

In the 2024-25 school year, 324 students attended Riverdale Senior High School.


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau, the Illinois Department of Public Health and the Illinois State Board of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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