Important Dates for Class 2026

9/10/2025 3:21 pm

Senior year is a wonderfully exciting year but can sometimes feel a bit like drinking from a fire hose. There are several calendar dates to consider and some student and parent homework to take care of to make this a smooth, easy year.

A very important source of information for Senior Parents is the MIHS Counseling Center newsletter. Make sure you read through it every month!

IMPORTANT DATES FOR 2025-2026

• September 26: Homecoming assembly, parade and game 
• September 27: Homecoming dance

Senior Fundraisers

3/7/2026 3:40 pm

The PTSA Senior Activities Committee (SAC), a dedicated group of senior parents, organizes events like the Grad Night Party, Senior Photo Fest, Baccalaureate and more

To help reduce the cost of these events, the SAC coordinates various fundraisers. Below is a list of the fundraisers to occur throughout the 2025-26 school year 

Graduation Caps, Gowns & Tassels

10/8/2025 5:55 pm

Caps, Gowns and Tassels are available for purchase through the Josten's website:

MERCER ISLAND HIGH SCHOOL MERCER ISLAND, WA - Graduation | Jostens

Orders due by Friday, October 17, 2025. If you missed the deadline, reach out to Mike Annis, our Josten's rep- text 206.931.4723 or mike.annis@jostens.com

Caps, Gowns and Tassels will be delivered to the students at school in the spring

**The November 5th "Senior Merch Delivery Day" date cited on the Josten's website is for picking up items such as Letter Jackets or other class apparel.  Not cap and gowns.**