Sullivan CUSD #300 2025/2026 school calendar
•July 30, 2025•
August 11th and 12th-Teachers Institute, no student attendance
August 13th-First Day of Student Attendance, 1st through 5th grades
August 14th- First Day of Student Attendance, Kindergarten
August 15th-First Day of Student Attendance, Early Childhood/Project Help
September 1st -Labor Day- NO SCHOOL
September 11th-SES Open house (5:00-6:30 p.m.) and Book Fair (3:00-7:00 p.m.)
September 26th-Homecoming, early dismissal at 2:20 p.m.