Cusd 308

CUSD 308 includes 20 schools in Illinois: 13 elementary, five middle and two high schools. In 2025–26, elementary schools averaged 63% in ELA and 50% in math, both above state results of 56% and 40%; middle schools averaged 63% in ELA, also above the state’s 56%, while middle-school math was essentially level with the state at 40%. The two high schools’ 11th-grade ACT averages were above state results in ELA, math and science. The most important takeaway is that these averages hide substantial differences between individual schools, especially in elementary math.

At the elementary level, The Wheatlands led ELA at 79%, while Wolfs Crossing led math at 70%; Long Beach was lowest in both, at 43% ELA and 29% math. The top-to-bottom gaps were 36 points in ELA and 42 in math. Among middle schools, Murphy led ELA at 72%, and Bednarcik led math at 52%; Thompson had the lowest ELA result, 54%, and Plank the lowest math result, 26%. Oswego East led Oswego High in all three ACT subjects, with 60% ELA, 52% math and 59% science, compared with 54%, 44% and 54%.

Results improved in some areas but not others from 2024–25 to 2025–26: elementary averages rose 4 points in ELA and 2 in math, while middle-school ELA rose 5 points and math fell 1. High-school ACT averages rose 1 point in math but fell 2 in ELA and 3 in science. SchoolDigger ranked Wolfs Crossing 87th percentile among elementary schools, Murphy and Bednarcik tied at 75th among middle schools, and Oswego East 85th among high schools. Income figures offer context, not an explanation: in 2024–25, Fox Chase and Lakewood Creek had similar free/reduced lunch eligible shares, 38% each, but Fox Chase scored 22 points higher in ELA and 15 points higher in math; Lakewood Creek was slightly higher in 5th-grade science.