Summary:
Winnebago CUSD 323 has four schools—two elementary schools, one middle school and one high school—with 1,267 students enrolled and student-teacher ratios from 10.8 to 14.4. The clearest broad academic bright spot is Winnebago Middle School: in 2025–26, its all-grades ELA result was 67%, compared with the state’s 56%, a 10-point advantage; its math result was 40% versus 40%, a 0.4-point advantage.
Winnebago High School also stands out, especially in grade 9, where it beat state results by 8 points in ELA, 13 in math and 7 in science. Its SchoolDigger ranking was at the 70th percentile, followed by the middle school at the 60th; Jean McNair Elementary School ranked at the 38th percentile and had the weakest overall IAR profile: ELA was 9 points below the state, and math was 1 point below. The all-grades ELA gap between the middle school and Jean McNair was 19 points. Dorothy Simon Elementary School has no test-score figures in the supplied data, and the elementary and middle schools serve different grade groups.
Recent results diverged: the middle school’s all-grades ELA rose 18 points and math rose 5, while Jean McNair’s ELA fell 4 points and math fell 6; its fifth-grade science result rose 9 points. High-school changes were mixed, too: grade 9 math rose 16 points, while grade 11 ELA fell 10. SchoolDigger rankings over the reported years moved from 74th to 70th percentile for the high school, 65th to 60th for the middle school and 49th to 38th for Jean McNair. As context, free/reduced lunch eligible shares in 2024–25 ranged from 28% at the high school to 33% at Jean McNair; the middle school was 31% and Dorothy Simon 30%. Chronic absenteeism was below the state rate at all four schools, though it was highest at the middle school: 16% versus 7%–13% at the others.
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