Plank Junior High

510 Secretariat Ln, Oswego, IL 60543

CSchola Grade
Grades
6–8
Middle
Students
595
Enrolled 2024–25
Students per teacher
11.1 : 1
Full-time teachers
District
CUSD 308
Kendall County

Schola Grade C · Average

Letter grade (A–F) · compared with 688 Illinois middle schools · How we grade
Test scores22% proficient in math & reading
35thpercentile
Equity8% of low-income students proficient
10thpercentile
Attendance19% chronically absent
63rdpercentile
Class size11.1 students per teacher
78thpercentile

Percentiles compare this school with other Illinois middle schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Plank Junior High

Plank Junior High is a public middle school in Oswego, Illinois, serving grades 6–8. It is part of CUSD 308. The school is located in a large suburb in Kendall County.

In the 2024–25 school year, 595 students were enrolled, with about 11.1 students for every full-time teacher. That ratio is smaller than the typical Illinois middle school (12.7 students per teacher). Its Schola Grade is C (average), compared with 688 Illinois middle schools.

Grades & enrollment

Students per grade, 2024–25Grades 6–8

Location & nearby schools

510 Secretariat Ln
Oswego, IL 60543
Open in Google Maps

School details

Type
Public School · What this means
Level
Middle
Grades offered
6–8
Enrollment (2024–25)
595 students
Students per teacher
11.1 to 1
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
CUSD 308
County
Kendall County
NCES school ID
173027005820

Schools near Plank Junior High

All 14 schools in Oswego →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.