MacArthur High School
Decatur, Illinois · Grades 9–12 · 1,105 students
Enrollment
1,105
Grades
9–12
Free / reduced lunch
67%
Type
Public school
Part of
Methodology & sources
- NCES Common Core of Data (CCD) directory (as of 2022)
Learn anything, free.
COSMIQ is a free, voice-driven AI tutor for every learner. No credit card, ever.
Start learning free →About this profile. COSMIQ is an independent, free AI tutoring service and is not affiliated with, endorsed by, or sponsored by MacArthur High School, Decatur SD 61, Illinois, or any government education agency. All figures are drawn from public U.S. Department of Education data (NCES Common Core of Data and EDFacts). COSMIQ does not collect or publish user reviews or ratings of schools.
Data last refreshed July 7, 2026.