Mercer Island-public Safety 9611 Se 36th St Mercer Island, WA 98040 Phone : (206) 236-3576 Business Category Public Order & Safety Emergency Disaster Services Civil Defense Equipment & Supplies Mercer Island City Of--mercer Island City Hall, Disaster Preparedness Mercer Island, WA 98040 Phone : (206) 236-3576 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools