Eastside Catholic School, home of the Crusaders, is a private school located in Sammamish, Washington. Eastside Catholic School is a part of the Archdiocese of Seattle and has around 1000 students and 18 varsity sports. Eastside Catholic School is a Catholic faith-based educational community where students learn to integrate their thinking and believing in ways that encourage intellectual excellence, nurture relationships and inspire a life of leadership and service to others. Go Crusaders!