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St Luke School

Private school · Shoreline, King County · grades PK, K-8 · Roman Catholic

Snapshot

K-12 enrollment
383
SBE-reported, 2024-25
Student-teacher ratio
13.4:1
NCES PSS, 2021-22
Teachers (FTE)
23
NCES PSS, 2021-22

Identity and approval

Campus
St Luke School, 17533 St Luke Pl N, Shoreline 98133
Host public district
Shoreline School District
Grades
PK, K-8
Religious affiliation
Roman Catholic
WA SBE approval
2026-27 (state-approved private school)
Profit status
Nonprofit

Enrollment

K12345678
384642394745434142

Enrollment by grade, 2024-25 school year, as reported to the WA State Board of Education.

Academics

Washington private schools are not required to publish state assessment results. No public score data exists for this school.

Student demographics

Asian
10%
Black
7%
Hispanic
10%
White
59%

NCES Private School Universe Survey, 2021-22 (the most recent federal collection). Private-school demographics are reported biennially and lag public-school data.

Research dossier

St. Luke School

Catholic parish school in Shoreline · preschool through grade 8 · 383 students (Washington State Board of Education, 2024-25) · Archdiocese of Seattle, dual-programme International Baccalaureate (IB) World School

The verdict

St. Luke is attempting an unusual hybrid, and enrollment says it's working. This is a doctrinally orthodox parish school under the Archdiocese of Seattle that became, in February 2021, the first Catholic school on the West Coast authorized to run both the International Baccalaureate Primary Years and Middle Years Programmes. The student body grew 21% between 2021-22 and 383 students in 2024-25, and for the 2026-27 cycle the school is taking applications only for preschool through second grade. Grades three through eight are full and waitlisted. The catch is that the hybrid's two halves answer to different authorities. In May 2024 the parish declined to renew a well-liked kindergarten teacher's contract over her same-sex marriage, triggering a 1,100-signature petition and organized parent protests. Families shopping for the inquiry-based academics need to price the whole institution: mandatory theology, Mass, and daily prayer for every student, a fundraising-and-volunteering stack on top of tuition, and a pricing ladder in which non-parishioners pay roughly 39% more across three children. Choose it for the IB-plus-Catholic combination, not despite the Catholic part. The school has shown exactly where its lines are.

Researched 2026-07-04. Citations and claim ledger included in the full dossier.

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The real comparison is against your public options.

Tuition here runs five figures a year, the question is what it buys over the public schools your address already gives you. A $29 Research Pass unlocks score trends, peer percentiles, competition evidence, gifted-pathway detail, and PTA capacity on every public school in the region, plus 3 full research dossiers for the schools on your shortlist.

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Sources

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