Mira COsta High School

Information Links: 

Links will be updated as new information comes out.

MBUSD Enrollment and Registration

MBUSD School Calendar 2025-2026

Incoming 9th Grade & Transfer Student Information Page

MCHS Course Description Handbook 2025-2026

MCHS AP & Honors Programs

MCHS AP Course Screencast

MCHS Off Campus Course Guidelines

Time Management Worksheet

MCHS Student and Parent Information Handbook 2025-2026

MCHS Bell Schedule 2025-2026

MCHS Profile 2025-2026

MCHS Class of 2025 Map

MCHS Club Directory 2025-2026

Upcoming Events:

• 2026 MBX Summer School Registration - Enrollment is open to incoming 9th graders and all high school students, both in and out of the district (2026 MBX Summer School Flyer) Please note: Summer School Enrollment is ONLINE ONLY. No in-person registration.

  • Academic Classes (Monday, June 15-Thursday, July 30, 2026)

• • • Academic Registration Opens - Thursday, March 12, 2026 at MBXFOUNDATION.ORG

    • Athletics Begin: Dates & times coming soon

    • Questions: Email summerschool@mbxfoundation.org 

  • Information from Mira Costa High School

    • Know Before You Register! MCHS Important Updates for Incoming Freshman

    • MCHS Off-Campus Course Guidelines

• MCHS: THIS IS COSTA Night - Wednesday, March 11, 2026, 6-7:30 PM in the MCHS Auditorium - Calling all incoming 9th graders and their families! Kick off your Costa journey and check out what Costa has to offer with MBX Summer School, sports teams, music and arts programs, and more! In break-out sessions, hear directly from current students, the MCHS Principal, and the MBX Summer School administration as they share what to expect and how to get involved.