Private School Cost in Idaho (2026)
Private schools in Idaho average $7,650/year. 38% below national avg. Religious schools run $5,200/year; independent schools average $14,800/year.
State Average
$7,650
per year
Monthly Est.
$638
per month
Private Schools
125
in Idaho
vs National
-$4,700
per year
Private School Tuition by Grade Level in Idaho (2026)
Estimated from NCES state averages and national grade-level differentials
Elementary School (K–5)
Typically the most affordable level — includes K–8 parish and religious programs.
$6,500/yr
~$541/mo
Middle School (6–8)
Near the state average; many schools run K–8 or 6–12 programs.
$7,650/yr
~$637/mo
High School (9–12)
Most expensive level — prep school premium and college counseling raise cost.
$9,200/yr
~$766/mo
Tuition by School Type in Idaho
Average annual tuition, 2026 NCES data
Religious Schools
Catholic, Christian, Jewish, and other faith-based schools.
$5,200/yr
-35% vs national ($8,000)
Independent Schools
Non-religious private day schools and prep schools.
$14,800/yr
-41% vs national ($25,000)
Montessori Schools
Child-led learning programs, typically PK–8.
$9,500/yr
-24% vs national ($12,500)
All Private Schools (Avg)
Blended average across all types.
$7,650/yr
-38% vs national ($12,350)
Cost Range in Idaho
25th Percentile
$4,000
More affordable options
State Average
$7,650
Typical school
75th Percentile
$12,200
Premium schools
Most Idaho private schools fall between $4,000 and $12,200/year. Individual schools vary — always contact the school directly for exact tuition figures.
Can I Afford Private School in Idaho?
Enter your household income to see how Idaho's average tuition fits your budget.
Private vs Public in Idaho
Private School (avg)
$7,650
per year, out-of-pocket
- • Avg class size: 12–15 students
- • Financial aid available (27% of students)
- • Specialized curriculum options
Public School
$8,960
per pupil, taxpayer-funded
- • Avg class size: 16–22 students
- • Free to attend (hidden costs: $1,500–$5,000/yr)
- • Quality varies widely by district
Idaho spends $8,960/pupil in public schools (state average). Private schools charge an average of $7,650/year — a gap of $1,310/year less than public per-pupil spending.
Financial Aid in Idaho
About 27% of private school students in Idaho receive need-based financial aid, averaging 48% of tuition. At Idaho's average of $7,650/year, that's roughly $3,700/year in aid for qualifying families.
- • Most schools use FACTS or SSS (School and Student Services) applications
- • Apply for aid at the same time you apply for admission — deadlines run January–March
- • Religious schools (avg $5,200/yr) offer the most need-based aid relative to tuition
- • Siblings enrolled at the same school often qualify for a 10–20% multi-child discount
Compare Other States
Frequently Asked Questions
How much does private school cost in Idaho?
Private school in Idaho averages $7,650/year — 38% below the national average of $12,350/year. Religious schools average $5,200/year; independent schools average $14,800/year. Idaho has approximately 125 private schools. Source: NCES 2023–24.
What is the average private school tuition in Idaho?
The average private school tuition in Idaho is $7,650/year. That breaks down to roughly $637/month on a 12-month payment plan. Religious schools run lower at $5,200/year; independent schools average $14,800/year.
How does Idaho private school cost compare to the national average?
Idaho private school tuition averages $7,650/year, which is 38% below the national average ($12,350/year). Idaho is one of the more affordable states for private education, with a higher share of parish-subsidized religious schools keeping costs down.
How many private schools are in Idaho?
Idaho has approximately 125 private schools. These include religious (Catholic, Christian, Jewish, and other faith-based) schools, independent schools, Montessori programs, and boarding schools. Source: NCES Private School Universe Survey.
Can I afford private school in Idaho?
A common guideline is to keep private school tuition under 10–15% of gross household income. At Idaho's average of $7,650/year, that means a household income of $64,000+ is generally needed without financial stress. About 27% of private school families receive need-based aid averaging 48% of tuition — contact the school's admissions office to learn about aid options.
Private School Calculator
Estimate tuition by grade level and school type for your budget.
Total K–12 Cost Calculator
Year-by-year projection with tuition inflation — see the 13-year total.
Financial Aid Calculator
Estimate your aid eligibility based on income and family size.
Private vs Public School
Side-by-side cost comparison with the real out-of-pocket numbers.
All States Comparison
Compare private school costs across all 50 states side by side.