Home › Venues › McGrath Amphitheatre McGrath Amphitheatre Tickets Buy tickets for concerts at McGrath Amphitheatre in Cedar Rapids, IA. No Upcoming Events No upcoming events scheduled at McGrath Amphitheatre. Please contact us with any corrections. Hotels & Lodging Near McGrath Amphitheatre About the Venue McGrath Amphitheatre At-a-Glance Capacity 6,000Address475 1st Street SouthwestCedar Rapids, IA 52401United States Map & Directions Website mcgrathamphitheatre.com/Advertisement