St. Luke School is a Catholic preschool-through-grade-8 parish school in Shoreline, just north of Seattle, partnered with St. Luke Parish (established 1954). It opened in 1957 with three Edmond Dominican Sisters, one lay teacher, and 125 students in grades 1-5; current enrollment runs about 380 with a 12:1 student-teacher ratio.
The distinguishing fact among Pacific Northwest Catholic K-8s: St. Luke became the first Catholic school in the Pacific Northwest authorized as an International Baccalaureate World School (February 2021) for both the Primary Years (preschool-grade 5) and Middle Years (grades 6-8) programs, after roughly six years of preparation. Spanish runs continuously from preschool through eighth grade, and middle-school students rotate through visual and performing arts, choir, coding, robotics, and drama as MYP exploratory components. Eight interscholastic sports are offered through the Catholic Youth Organization.
In 2024 the parish was placed into Parish Family 13 with Christ the King in Seattle as part of the Archdiocese of Seattle's Partners in the Gospel reorganization, a structural change that affects governance more than day-to-day school operations. St. Luke drew local FOX 13 coverage in May 2024 when the pastor declined to renew a kindergarten teacher's contract because she was marrying a woman, prompting a parent-organized petition campaign — a recurring tension in Archdiocese-affiliated schools around morality-clause enforcement.
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