City Special Events

The Parks & Recreation Department offers events throughout the year that bring our community together. We take pride in partnering with other Mercer Island organizations, businesses, and residents to offer family-friendly events and gatherings that entertain, celebrate, and build a sense of belonging and community.  If you are interested in volunteering or sponsoring an event, let us know!

2025 EVENTS:

October 5: Mid-Autumn Festival, hosted by The Mercer Island Chinese Association 

October 31: Town Center Trick or Treating

December 4: Tree Lighting

December 6: Holiday Makers Market, partnered with the Mercer Island Chamber of Commerce

December 19: Argosy Christmas Ship