Catholic high schools in Idaho

Browse 4 Roman Catholic schools serving high-school grades in 3 cities across Idaho.

Families applying in Idaho can take the free HSPT practice test first, then use the city lists below to compare schools that actually require the exam.

Find schools by city

Boise1 school Post Falls1 school Rathdrum2 schools

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Looking for Catholic schools near you?

If your search was for catholic schools near me, start with our Catholic schools near me guide — it turns the search into a local shortlist: find your state, narrow to your metro, then compare the real schools in your commute on HSPT requirements, scholarships, cost, and fit. For Idaho specifically, pick a city above for the local list, then open each school page to confirm HSPT dates and admissions deadlines.

All Catholic high schools in Idaho

Bishop Kelly High SchoolBoise · Grades 9-12 · 967 students Immaculate Conception AcademyPost Falls · Grades KG-12 · 188 students Mary Immaculate Queen SchoolRathdrum · Grades KG-12 · 29 students St Joseph SeminaryRathdrum · Grades 7-12 · 12 students

Catholic school resources for Idaho families

Applying to Catholic high schoolAdmissions timeline, entrance exams, applications, and decisions Best Catholic high schools guideHow to compare and shortlist Catholic high schools for your child Free HSPT practice test25-question diagnostic across all five sections What is the HSPT?What the entrance exam covers and how schools use it HSPT vs ISEE vs SSATHow the HSPT compares with other private-school entrance tests HSPT scores and scholarshipsAverage scores, percentiles, and how aid decisions work HSPT study planA realistic prep plan families can actually finish HSPT scholarships by cityWhere Catholic high school scholarships are available National Catholic school directoryAll Catholic schools serving high-school grades, by state Catholic diocesesDiocese-level school directories across the United States How this directory is builtData sources and the review process behind the list

Source: NCES Private School Locator 2023–24 data, reviewed August 2026. School details can change; confirm admissions information directly with each school.