Winnebago Middle School, Winnebago IL

Original Research by School Decision on Winnebago Middle School

Winnebago Middle School serves students in grades six through eight in a small rural village in Winnebago County, part of the Rockford metropolitan area. The school enrolls a small student body in a district that serves a largely stable, generational population.

In terms of academic performance, the school's test results are mixed. State assessment data from the most recent year shows proficiency rates that vary by subject and grade. In English Language Arts, sixth graders achieved around mid-range proficiency, while seventh and eighth graders performed slightly better. In mathematics, proficiency rates were lower across all middle grades: sixth graders achieved the lowest performance, with seventh graders showing modest improvement and eighth graders performing at a higher level than their sixth-grade counterparts. In science, eighth graders achieved just above half the students proficient. Across the tested subjects and grades, the school's overall proficiency index places it below the midpoint among the other school districts in Winnebago County. The assessment data itself changed this year due to revised proficiency criteria in Illinois, so historical trend comparisons are not reliable at this time.

The student population reflects the village's demographics. The majority of students identify as white, with smaller representation from Hispanic, multiracial, and other racial and ethnic backgrounds. Free or reduced price lunch rates were not available in the data provided. Special education enrollment and English learner rates were also not reported. A parent may want to look into these population details directly with the school or district.

The school functions within a quiet rural setting. Winnebago is a compact village with a historic downtown and newer commercial corridor along U.S. Route 20. Local civic life centers on a small business district, Winnebago Park with sports facilities, and the Pecatonica Prairie Trail, a paved rail-trail used year-round by walkers and cyclists. The community is characterized by midcentury homes on quiet tree-lined streets and a largely generational population. Growth has been slow; the village adopted its first strategic plan in 2025 to support local businesses and attract new residents.

At the district level, a recent development affects the financial context. Winnebago County voters rejected a proposed school sales tax in March 2026 that would have provided alternative revenue for facility improvements, school resource officers, and mental health professionals across fourteen county districts, including Winnebago CUSD 323. With this measure defeated, the district will continue relying primarily on property taxes to fund building repairs and safety improvements. For families considering this community, that constraint on capital funding is a direct consideration.

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Academic performance

How students perform on state tests, by grade, set against the district.

Math

Grade 625%

School 25% · District 25%

▲ 1 pts above state median · ▲ 10 pts above county median

Grade 736%

School 36% · District 36%

▲ 7 pts above state median · ▲ 16 pts above county median

Grade 843%

School 43% · District 43%

▲ 20 pts above state median · ▲ 27 pts above county median

English language arts

Grade 646%

School 46% · District 46%

▼ 4 pts below state median · ▲ 3 pts above county median

Grade 752%

School 52% · District 52%

▲ 1 pts above state median · ▲ 9 pts above county median

Grade 849%

School 49% · District 49%

▼ 4 pts below state median · ▲ 5 pts above county median

Science

Grade 852%

School 52% · District 52%

▲ 12 pts above state median · ▲ 12 pts above county median

This schoolWinnebago CUSD 323, same grade

Graduation rate (ACGR) reflects the federally published Adjusted Cohort Graduation Rate for the most recent year available. We refresh this data annually at the close of each academic year in June. The federal source publishes a banded rate (for example, "90-94%") instead of an exact number for cohorts small enough to risk identifying individual students. The state distribution chart, where shown, plots every school in the state with a published rate or band; schools whose rate is federally suppressed are excluded. Where the federal source publishes a band rather than an exact rate, the school is placed within its band using a stable, ID-derived offset, so its position is consistent across visits.