Summary:
Zip code 61010 has three schools in Byron CUSD 226, serving pre-K through grade 12: Mary Morgan Elementary School (631 students), Byron Middle School (366), and Byron High School 9-12 (464), with 1,461 students combined. Results are generally above state figures, but strengths differ by school and grade. The clearest standout is Mary Morgan’s 3rd-grade math, where 91% were proficient versus 49% statewide, a 42-point advantage.
Mary Morgan stands out in math overall: its 2025–2026 all-grades result was 74%, 34 points above the state, and its 3rd-grade result led the area’s comparisons. Byron Middle stands out in ELA, with grade-specific advantages of 19.6 to 25.8 points; however, its 8th-grade math was 30%, 5 points below the state. At Byron High, 9th-grade PreACT science was 62%, 15 points above the state, while 10th-grade PreACT math was only 1 point above. The high school’s graduation rate was 98%, compared with 90% statewide.
Recent trends are mixed: Mary Morgan’s math advantage grew by 1 point, while its ELA advantage narrowed by 2; Byron Middle’s ELA and math advantages narrowed by 3 and 4 points. At Byron High, 9th-grade PreACT scores rose, while 10th-grade PreACT and 11th-grade ACT scores fell. SchoolDigger ranks Mary Morgan at the 86th percentile, Byron High at the 80th, and Byron Middle at the 76th; since 2023–2024, Mary Morgan rose 9 percentile points while the other two fell 6 and 5. Student-teacher ratios are close, from 11.8 to 12.6. In 2024–2025, free/reduced lunch eligible shares were 29% at Mary Morgan, 24% at Byron High, and 21% at Byron Middle; these figures are context, not an explanation for results.
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