Mercer Island promotes community involvement through diverse volunteer opportunities available throughout the year. Residents can engage with Youth and Family Services by volunteering at the Thrift Shop and participating in fundraising for the MIYFS Foundation. For outdoor enthusiasts, Parks and Recreation welcomes volunteers to assist in restoring forested areas and supporting recreation programs. The Emergency Preparedness initiative trains volunteers for Disaster Response Teams, ensuring the community is equipped for emergencies. Civic-minded residents can also serve on boards and commissions with the City Council.

Additional opportunities across various City departments can be explored through the City’s website, where contact information for department heads is also available. Volunteering enhances the quality of life on Mercer Island and strengthens community bonds.