EC at a Glance



Located on 50 acres in Sammamish, Washington, our beautiful state-of-the-art campus facilities, built in 2008, are an ideal learning environment. Amenities include fully equipped science labs, integrated classroom technology and dedicated gathering areas for student collaboration. The campus is home to the St. Francis of Assisi Chapel, a digital learning library, dedicated athletic spaces and much more.

  • Founded in 1980
  • 10 science labs
  • 12,000-volume library
  • 2 gymnasiums
  • 2,000-seat stadium
  • 2 multipurpose turf fields
  • 1 central courtyard 
  • 1 dedicated Commons/cafeteria space
  • 1 dedicated independent living skills classroom
  • Outdoor learning spaces, including a large-tented area. 

Accreditation and Membership

Academic Excellence

  • Middle School and High School faculty: 89
  • Faculty holding advanced degrees: 55%
  • Faculty and staff awarded National Board Certification: 12
  • Student-Teacher Ratio: 14:1
  • Average class size: 17
  • 99% of students are college-bound graduates (2023)
  • 35+ AP, UWHS and Honors Courses
  • National Merit Finalists: 13 (2018-2023)
  • National Merit Commended Students: 44 (2018-2023)

Student Body

Four Eastside Catholic students standing in the Courtyard


High School Sports

Eastside Catholic is proud to offer 22 varsity athletic teams with many junior varsity and JV-C level teams. Most EC teams participate in the WIAA 3A Metro League.

  • 23 athletic teams
  • 19 Metro League championships
  • 12 WIAA academic state championships
  • 10 state championships
  • 19 individual student-athlete champions

Middle School Sports

  • 7 Catholic Youth Organization (CYO) athletic programs, including cross country, basketball and track


Northwest Association of Independent Schools logo

Superintendent of Public Instruction logo

Washington Federation of Independent Schols logo


Unleash Your Potential

EC combines academic excellence with outstanding enrichment activities, exciting sports opportunities, comprehensive leadership training and a steadfast commitment to faith-based values that resonate for a lifetime.