High School 2025–2026 Academic Calendar

ISAZ hero banner
DateEvent
July 7 – Aug 1, 2025Summer School Session 2
July 21 – Aug 5, 2025Teacher PD
Aug 6, 2025First Day of School
Sep 1, 2025Labor Day
Oct 6 – 14, 2025Fall Break
Oct 13 – 14, 2025Teacher PD
Nov 26 – 28, 2025Thanksgiving Vacation
Dec 17, 2025Last Day of Fall Semester
Dec 18, 2025 – Jan 6, 2026Winter Break
Jan 5 – 6, 2026Teacher PD
Jan 7, 2026First Day of Second Semester
Jan 19, 2026Martin Luther King, Jr. Day
Feb 16, 2026Presidents Day
Mar 9 – 13, 2026Spring Break
Mar 30 – Apr 10, 2026TBD: State Testing
Apr 13 – Apr 24, 2026TBD: State Testing Makeup
May 20, 2026Last Day of School
May 21 – May 29, 2026Teacher Work Days
May 25, 2026Memorial Day
June 1 – June 26, 2026Summer Session 1

SY25-26 Academic Calendar [PDF]