Enrollment
254
Middle
DISTRICT 365 · STATE 462
SCHOOL COMMUNITY·RIVERDALE CUSD 100·NCES 173393003485
Riverdale Middle School
9822 256th St N, Port Byron, IL 61275 · (309) 523-3131 · Rock Island County
GRADES 06–08MIDDLE41-RURALREGULAR SCHOOL254 STUDENTS
B-
allk12 Grade
Scored higher than 50% of Illinois public middle schools
- B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- C-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Illinois public middle schools
Student : Teacher
14.1:1
18 FTE teachers
DISTRICT 13.0:1 · STATE 13.0:1
Free / Reduced Lunch
16%
40 students
DISTRICT 16% · STATE 56%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 6 | 78 | 31% |
| Grade 7 | 72 | 28% |
| Grade 8 | 104 | 41% |
Student demographics
20%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 22% · STATE 69% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
Riverdale Middle School→Riverdale Sr High School
Feeds from
Based on grade levels within Riverdale CUSD 100. Attendance zones can vary; confirm enrollment with the district.
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)English Language Arts
71.9%
IL avg 51.0% . +12.0pp since 2023
Math
47.8%
IL avg 37.9% . +13.9pp since 2023
What this means: On the IAR + ISA, Illinois's statewide test, about 72 of every 100 students at this school read and write at grade level and about 48 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 12 points since 2023, while math scores are up about 14 points.
IAR + ISA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 71.9% | 47.8% |
| 2023-24 | 59.9% | 33.9% |
% Proficient (Levels 4-5), all students and all tested grades.
Source: IAR + ISA. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
54.7%
composite math + reading, all grades
Predicted
62.4%
based on IL schools with similar FRL share
Beats by
-7.7pp
below demographic expectation
What this means: About 55% of students here test proficient in math and reading, compared with the roughly 62% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Riverdale Middle School
Riverdale Middle School's state test result (54.7% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Riverdale Middle School this school | 254 | 15.7% | 54.7% |
| Tremont Middle School Tremont | 291 | 18.9% | 60.9% |
| Orion Middle School Orion | 244 | 19.3% | 56.7% |
| St Joseph Middle School Saint Joseph | 325 | 18.8% | 70.3% |
| Germantown Hills Middle School Germantown Hills | 374 | 16.8% | 79.4% |
| Willowbrook Middle School South Beloit | 348 | 15.8% | 68.1% |
Matched among Illinois middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Riverdale Middle School ranks
Among middle schools| Measure | This school | In Illinois | In Rock Island County |
|---|---|---|---|
| State test proficiency ranked highest first | 54.7% | #142 of 578 | #1 of 9 |
| Math proficiency ranked highest first | 47.8% | #165 of 640 ▲ 33 | #1 of 9 no change |
| Reading proficiency ranked highest first | 71.9% | #160 of 640 ▲ 35 | #1 of 9 no change |
| Enrollment ranked largest first | 254 | #497 of 691 | #6 of 9 |
| Students per teacher ranked fewest first | 14.1:1 | #394 of 558 | #3 of 7 |
| Diversity index ranked most diverse first | 19.7% | #478 of 560 | #6 of 7 |
| Free and reduced lunch ranked highest share first | 15.7% | #557 of 581 | #9 of 9 |
| Enrollment change since 2017-18 ranked steepest decline first | -4.9% | #360 of 440 | N/A |
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
254
0 (0%) vs 2020
+15% since 1990-91, when it was 221
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 254 | 18 | 14.1:1 | 16% (40) |
| 2023-24 | 261 | 18 | 14.5:1 | 20% (51) |
| 2022-23 | 267 | 16.1 | 16.6:1 | 21% (56) |
| 2020-21 | 254 | N/A | N/A | N/A |
| 2017-18 | 267 | 14 | 19.1:1 | 28% (75) |
| 2015-16 | 268 | 15 | 17.9:1 | 32% (85) |
| 2010-11 | 249 | 17 | 14.7:1 | 24% (59) |
| 2000-01 | 228 | 16 | 14.3:1 | N/A |
| 1990-91 | 221 | 14 | 15.8:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Riverdale Middle School.
Since 2017-18: students down 5% (267 to 254); teachers up 29% (14 to 18).
About Riverdale Middle School
Riverdale Middle School is a middle-grades school in Port Byron, Illinois, and it is part of Riverdale CUSD 100. The school's 254 students are in grades 6 through 8. Enrollment is 45% lower than the average for middle schools in Illinois, which is about 462.
Riverdale Middle School belongs to Riverdale CUSD 100, a district of 3 schools and 1,095 students.
Most students at Riverdale Middle School are White: 89% of enrollment. Smaller groups are 6% Hispanic and 2% multiracial. For comparison, the population of Rock Island County is roughly 72% White. The chance that two students picked at random at Riverdale Middle School belong to different racial or ethnic groups, known as the diversity index, is 20%.
Staffing totals 18 full-time-equivalent teachers, and the student-to-teacher ratio is 14.1:1. For comparison, middle schools in Illinois average 13.0:1. A measure often used for student poverty, free or reduced-price lunch eligibility, stands at 16%. That rate is below the 65% average among public schools in Rock Island County.
Riverdale Middle School is graded B- by allk12, scoring above 50% of Illinois public middle schools once test results, poverty-adjusted performance, and the recent trend are combined.
BeatsExpectations compares each school's average proficiency rate on state tests with a prediction based on free or reduced-price lunch eligibility. For Riverdale Middle School, the prediction is 62.4% and the result is 54.7%.
Within Rock Island County, median household income is about $67,159, 25% of adults hold a bachelor's degree or higher, and about 11% of people live in poverty. The public schools of Rock Island County number 57 and enroll about 21,921.
The shortest distance from Riverdale Middle School to another public school is about 0.3 miles, to Riverdale Sr High School. A five-mile radius around the school includes 3 other public schools. Among the 9 closest schools with test data, this one included, Riverdale Middle School ranks 6th on average proficiency.
Federal records code the school's setting as Rural: Fringe.
Compared with 2020-21, when it had 254 students, enrollment in 2024-25 was about the same at 254.
Conversations here can range across sports schedules, lunch menus, and spirit week. Reviews and ratings from people who know the school are welcome.
Rock Island County at a glance
View full county profilePopulation
142,757
Census ACS
Median income
$67,159
Household, ACS
Bachelor's+
25%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
57
21,921 students
Quick facts
Related schools
Other schools in Riverdale CUSD 100
- Riverdale Elementary SchoolElementary · 517 students
- Riverdale Sr High SchoolHigh · 324 students
Other schools in Port Byron
- Riverdale Elementary SchoolElementary · 517 students
- Riverdale Sr High SchoolHigh · 324 students
Other Riverdale Middle schools
2 other US public schools in 3 states are named Riverdale Middle. Riverdale Middle School is the 2nd largest of the 3.
- Riverdale Middle SchoolRiverdale, GA · 560 students
- Riverdale Middle SchoolMt Blanchard, OH · 208 students
Nearby schools
- Riverdale Sr High School0.3 mi · 324
- Riverdale Elementary School0.5 mi · 517
- Bridgeview Elementary School5.0 mi · 343
- Cody Elementary School5.3 mi · 443
- Virgil Grissom Elementary School5.5 mi · 152
- Pleasant Valley Junior High School6.5 mi · 940
Frequently asked questions
About Riverdale Middle SchoolHow many students attend Riverdale Middle School?
Riverdale Middle School enrolls approximately 254 students in grades 06-08.
What age range does Riverdale Middle School serve?
Riverdale Middle School serves students from grade 06 through grade 08.
How many students per teacher at Riverdale Middle School?
Approximately 14.1:1 students per teacher at Riverdale Middle School.
How diverse is Riverdale Middle School?
Riverdale Middle School reports a student body of 89% White, 6% Hispanic, 1% Black, 2% Asian, 2% Two or more.
Is Riverdale Middle School public or private?
Riverdale Middle School is a public K-12 school, overseen by Riverdale CUSD 100.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.