Home › Venues › Uncle Sam’s Amphitheater Uncle Sam’s Amphitheater Tickets Buy tickets for concerts at Uncle Sam’s Amphitheater in Spanaway, WA. No Upcoming Events No upcoming events scheduled at Uncle Sam’s Amphitheater. Please contact us with any corrections. Hotels & Lodging Near Uncle Sam’s Amphitheater About the Venue Uncle Sam’s Amphitheater At-a-Glance Address16003 Pacific Ave.Spanaway, WA 98387United States Map & Directions Advertisement