Plank Junior High

Plank Junior High is a middle-grades school of moderately sized scale in Oswego, Illinois, operated by CUSD 308, caters to 595 students in grades 6 through 8. Enrollment runs roughly 29% bigger than the state mean of about 462.

Across the 21 schools in CUSD 308 (16,766 students total), Plank Junior High accounts for its share of the district's footprint.

Looking at the student body, Plank Junior High lists that 43% of students identify as White, with the remaining enrollment distributed across several groups; the rest reads as 35% Hispanic, 10% Black, 7% Asian, 4% multiracial. That is noticeably less White than the county at large, where the share is closer to 65%.

Looking at the economic backdrop, Staff filings list 54 full-time-equivalent teachers, which works out to roughly 11.1:1 students per teacher. The state averages around 13.0:1, so this campus is tighter than the state norm typical. About 37% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

On a residual basis (actual vs predicted given the student mix), Plank Junior High tracks the demographic baseline. The model predicts 50.3% given the school's FRL share; actual proficiency is 42.2%.

In the area at large, the surrounding county (Kendall County) shows that the typical household earns roughly $111,601 per year, 37% of adults hold a bachelor's degree or higher, and the poverty rate sits near 5%. Plank Junior High is one of 50 public schools in Kendall County (combined enrollment of about 29,773 students).

Nearest neighbor: Churchill Elem School, around 0.1 miles off. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Plank Junior High at 6th of 8; the average score across the group is 49.5%.

The campus sits in a bedroom-community setting.

Trend over the last 7 years. Looking back 7 years, enrollment at Plank Junior High has fell 31%, going from 868 students in 2018 to 595 in 2025. White enrollment moved from 49% to 43% across the same window. The student-to-teacher ratio pulled in from 15.5:1 in 2018 to 11.1:1 today.

Inside the community feed, the feed for Plank Junior High typically covers school events, parent volunteer needs, and clubs. Members of the school community can share what they know.