Enrollment
595
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Oswego, IL
Plank Junior High
Federal NCES profile for Plank Junior High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 53/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 173027005820
👥 S:T ratio 55
🌟 Gifted program 70
🎓 Counselors 41
📋 Attendance 45
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Plank Junior High earns 53/100 on the Resource Investment Index, with class sizes smaller than 80% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
- #1 of 3
- middle schools in Oswego · Resource Index
- 53
- Resource Index · Higher
- 11.2:1
- small classes for Illinois
- 595
- students enrolled
Plank Junior High has class sizes smaller than 80% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Plank Junior High ranks #1 of 3 middle schools in Oswego, IL.
School address
Teachers (FTE)
53.0
Federal CCD staff survey
Students per teacher
11.2:1
vs 14:1 Illinois avg
-20% vs state
Student-teacher ratio in context
How Plank Junior High compares with Illinois and U.S. medians
What stands out at Plank Junior High
Plank Junior High is a mid-sized middle school in Oswego, Illinois, enrolling 595 students.
Class sizes run a bit leaner than typical: 11.2:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 595 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index lands in the upper third of 3,845 scored Illinois schools.
Its student body is led by White (43%) and Hispanic or Latino (36%), more mixed than most schools in the state (diversity index 67/100).
Counselor coverage runs a bit thin, about 298 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 22.2% of students chronically absent per the 2021-22 civil-rights collection.
Discipline events run high: 140 in- and out-of-school suspensions were reported for 595 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Among Oswego's middle schools, it stands alongside Traughber Jr High School (1,070 students): Plank Junior High is smaller than that campus by headcount and runs leaner classes (11.2:1 vs 17.5:1).
Cusd 308 also operates Oswego High School (2,870 students) and Oswego East High School (2,758 students) alongside Plank Junior High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Plank Junior High compares
Plank Junior High on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.2:1 | ▼ 20% | 14:1 | 15.7:1 |
| Enrollment | 595 | top 21% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.2:1
Leaner classes than 82% of US schools, among the more generously staffed nationally.
595
Bigger than 72% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
11.2:1
students per teacher
- 20% below state mean
Top 20% in Illinois - lower ratio than 80% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
22.2%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,181
per pupil, district-wide
- below Illinois avg of $17,042
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors2.0 FTE
Per 298 students, the combined health-and-guidance staffing load for this school.
Discipline context
86
in-school suspensions + 54 out-of-school
Suspension rate: 14.5 per 100 students. Combined in-school and out-of-school rate: 23.5 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 43.4%
Hispanic or Latino 35.5%
African American 10.1%
Asian 6.6%
Two or More 4.0%
American Indian / Alaska Native 0.5%
Largest group: White at 43.4% of enrollment.
Student-body diversity index 66.9/100
Simpson diversity index - at 66.9, Plank Junior High is more mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Cusd 308, which includes Plank Junior High.
$16,181
Per student
-5%
vs Illinois
Avg $17,042
-2%
vs U.S.
Avg $16,593
Revenue mix
Local 47.8%
State 45.6%
Federal 6.5%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Plank Junior High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Oswego High School | Larger | No free-lunch data | Higher S:T ratio |
| Oswego East High School | Larger | No free-lunch data | Higher S:T ratio |
| Traughber Jr High School | Larger | No free-lunch data | Higher S:T ratio |
| Thompson Jr High School | Larger | No free-lunch data | Higher S:T ratio |
| Lakewood Creek Elementary | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Plank Junior High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,870
- Students per teacher
- 16.1:1
- Resource Index
- 47/100
- Enrollment
- 2,758
- Students per teacher
- 16.2:1
- Resource Index
- 44/100
- Enrollment
- 1,070
- Students per teacher
- 17.5:1
- Resource Index
- 51/100
- Enrollment
- 832
- Students per teacher
- 15.7:1
- Resource Index
- 42/100
- Enrollment
- 767
- Students per teacher
- 20.2:1
- Resource Index
- 52/100
Similar middle schools in Oswego
2 comparable middle schools (grades 6-8) serving the same city.
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~595 students)
Next steps
Verify locally before acting on Plank Junior High's federal record.
- Compare Plank Junior High against another school. Compare schools
- Cusd 308's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Plank Junior High
How many students attend Plank Junior High?
Plank Junior High has 595 students enrolled. It is a middle school in Oswego, IL.
What is the student-teacher ratio at Plank Junior High?
The student-teacher ratio at Plank Junior High is 11.2:1, which is 20% lower than the Illinois average of 14:1 and 29% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Plank Junior High?
The largest demographic group at Plank Junior High is White at 43.4% of enrollment, in Oswego, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.9/100.
What is the Resource Investment Index for Plank Junior High?
Plank Junior High has a Resource Investment Index of 53/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Plank Junior High rank among middle schools in Oswego?
By Resource Investment Index, Plank Junior High ranks #1 of 3 middle schools in Oswego, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Oswego on the city page.
Is Plank Junior High a good school?
Plank Junior High earns 53/100 on the Resource Investment Index, with class sizes smaller than 80% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Cusd 308?
Besides Plank Junior High, Cusd 308 also operates Oswego High School (2,870 students), Oswego East High School (2,758 students), and Traughber Jr High School (1,070 students). See the Cusd 308 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.