- Enrollment
- 517
- Students per teacher
- 14.8:1
- Resource Index
- 53/100
Middle school (grades 6-8) · Port Byron, IL
Riverdale Middle School
Federal NCES profile for Riverdale Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 46/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 173393003485
👥 S:T ratio 36
🌟 Gifted program 30
🎓 Counselors 49
📋 Attendance 70
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Riverdale Middle School earns 46/100 on the Resource Investment Index, with class sizes larger than 79% of Illinois schools.
- #3 of 3
- public schools in Port Byron · Resource Index
- 46
- Resource Index · Typical
- 15.9:1
- large classes for Illinois
- 254
- students enrolled
Riverdale Middle School has class sizes larger than 79% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Riverdale Middle School ranks #3 of 3 public schools in Port Byron, IL.
School address
District: Riverdale Cusd 100 · Illinois
NCES ID 173393003485 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-6 students YoY
Riverdale Middle School held near 261 students from 2022-23 to 2023-24 (-6 headcount).
Teacher FTE added 16.1 → 18.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-6 students YoY 173393003485 · Port Byron, IL Middle · SMALL · TRAD
254 enr · 15.9:1 · RII 46
Nearest enrollment peer: Riverdale Elem School (517 students)
Riverdale Middle School held near 261 students from 2022-23 to 2023-24 (-6 headcount). Teacher FTE added 16.1 → 18.0 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Riverdale Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Riverdale Elem
Riverdale Elem School
517 students
- Riverdale Sr H
Riverdale Sr High School
324 students
- This school
Riverdale Middle School
254 students
What this shows Riverdale Middle School reports 254 students on the CCD universe file.
How Riverdale Middle School compares
Riverdale Middle School held steady on CCD headcount: ratios and free-lunch share vs Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.9:1 | ▲ 14% | 14:1 | 15.7:1 |
| Enrollment | 254 | top 73% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.9:1
Leaner classes than 39% of US schools, a middle-of-the-pack class size.
254
Bigger than 26% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Staffing depth
15.9:1
students per teacher
- 14% above state mean
Top 79% in Illinois - lower ratio than 21% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
12.2%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$13,909
per pupil, district-wide
- below Illinois avg of $18,196
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 254 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 1 out-of-school
Suspension rate: 0.4 per 100 students. Combined in-school and out-of-school rate: 0.8 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 89.4%
Hispanic or Latino 5.5%
Two or More 2.4%
Asian 1.6%
African American 1.2%
Largest group: White at 89.4% of enrollment.
Student-body diversity index 19.7/100
Simpson diversity index - at 19.7, Riverdale Middle School is less mixed than the Illinois school average of 38.9.
Programs
District finance for Riverdale Cusd 100 reports $13,909 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Riverdale Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Riverdale Elem School | Larger | No free-lunch data | Similar S:T ratio |
| Riverdale Sr High School | Larger | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Riverdale Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 324
- Students per teacher
- 12:1
- Resource Index
- 48/100
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~254 students)
Frequently asked questions about Riverdale Middle School
How many students attend Riverdale Middle School?
Riverdale Middle School has 254 students enrolled. It is a middle school in Port Byron, IL. CCD year-over-year: 267 (2022-23) → 261 (2023-24), nearly flat (-6).
What is the student-teacher ratio at Riverdale Middle School?
The student-teacher ratio at Riverdale Middle School is 15.9:1, which is 14% higher than the Illinois average of 14:1 and 1% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Riverdale Middle School?
The largest demographic group at Riverdale Middle School is White at 89.4% of enrollment, in Port Byron, IL.
What is the Resource Investment Index for Riverdale Middle School?
Riverdale Middle School has a Resource Investment Index of 46/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Riverdale Middle School rank among public schools in Port Byron?
By Resource Investment Index, Riverdale Middle School ranks #3 of 3 public schools in Port Byron, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in Riverdale Cusd 100?
Besides Riverdale Middle School, Riverdale Cusd 100 also operates Riverdale Elem School (517 students) and Riverdale Sr High School (324 students). See the Riverdale Cusd 100 district page for the complete list.