Summary:
ZIP 46311 covers Dyer, Indiana, where three public schools — two PK–4 elementaries and one grades 5–8 middle school — all belong to the Lake Central School Corporation. There is no high school or alternative school in this group. Enrollment totals 2,132 students: Kahler Middle School (971 students, about 45.5% of the ZIP), Protsman Elementary School (614), and George Bibich Elementary School (547). The district ranks 27th of 374 in Indiana (93rd percentile, 5 stars), and all three schools earned 4 stars in 2025–2026 and place at or above the 86th percentile statewide.
Protsman Elementary School is the strongest academic performer: its all-grade ELA is 61.33% and math 73.78%, both highest in the ZIP and well above the district's 57.35% and 56.51%, and 3rd grade math reaches 79.21% against a state figure of 51.9%. It also has the lowest student-teacher ratio (14.6), the highest spending ($12,865), and the highest free/reduced lunch rate (31.27%). George Bibich Elementary School has the best attendance (7.6% chronic absenteeism, less than half the state's 16.7%) and the strongest science (61.54%). Kahler Middle School, the largest school, has climbed from the 71st percentile in 2023–2024 to the 86th in 2025–2026, but has the highest chronic absenteeism (16.6%).
Elementary math is a clear strength, with both elementaries above 70% all-grade math proficiency. Science is a consistent bright spot, with all three schools exceeding the district's 54.81%. ELA is more mixed: Protsman is above the district, while Bibich and Kahler sit slightly below, and Kahler's ELA swings from 62.33% in 5th grade to 45.35% in 6th. Attendance separates the schools most sharply — Bibich at 7.6%, Protsman at 11.3%, and Kahler at 16.6%, a 9-point gap between the elementary and middle school.
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