Private high schools in Idaho (42)

By city

The 40 largest

School	City	Grades	Students	Per teacher	Affiliation
Cole Valley Christian Schools-Secondary	Meridian	PreK-12	1,263	15.8	Christian (nondenominational)
Logos Online School	Moscow	7-12	1,200	23.1	Christian (nondenominational)
CLRC	Naples	1-12	1,000	not reported	Nonsectarian
Bishop Kelly High School	Boise	9-12	967	16	Roman Catholic
Nampa Christian High School	Nampa	PreK-12	889	15.5	Christian (nondenominational)
Nampa Christian Schools	Nampa	PreK-12	889	15.5	Christian (nondenominational)
Genesis Preparatory Academy	Post Falls	PreK-12	541	15.8	Christian (nondenominational)
Genesis Prep Academy	Post Falls	PreK-12	466	11	Christian (nondenominational)
Grace Lutheran School	Pocatello	PreK-12	430	9.2	Lutheran Church (Missouri Synod)
Sun Valley Community School-Middle	Sun Valley	PreK-12	397	7.5	Nonsectarian
Sun Valley Community School-Upper	Sun Valley	PreK-12	397	5	Nonsectarian
Sun Valley Community School	Sun Valley	PreK-12	391	7.3	Nonsectarian
Watersprings School	Idaho Falls	PreK-12	364	12.3	Christian (nondenominational)
Riverstone International School	Boise	PreK-12	349	5	Nonsectarian
Lighthouse Christian School	Twin Falls	PreK-12	305	14.9	Christian (nondenominational)
Christian Center School	Hayden	PreK-12	230	13.1	Christian (nondenominational)
Greenleaf Friends Academy	Greenleaf	K-12	228	14	Friends
North Idaho Christian School	Hayden	K-12	228	14	Christian (nondenominational)
Classical Christian Academy	Rathdrum	PreK-12	212	10	Christian (nondenominational)
Immaculate Conception Academy	Post Falls	K-12	188	10.4	Roman Catholic, all-boys
Calvary Meridian Prep Academy	Meridian	K-10	185	15	Christian (nondenominational)
House of the Lord Christian Academy	Oldtown	PreK-12	130	8.4	Christian (nondenominational)
Calvary Christian Academy	Emmett	PreK-12	123	8.4	Christian (nondenominational)
The Sage School	Hailey	6-12	91	6.5	Nonsectarian
One Stone	Boise	9-12	87	36.2	Nonsectarian
Gem State Adventist Academy	Caldwell	9-12	83	10.9	Seventh-Day Adventist
Boise State University Trio Upward Bound	Boise	9-11	80	6.2	Nonsectarian
Calvary Christian School	Nampa	PreK-12	73	13.8	Christian (nondenominational)
Joshua Institute Academy	Meridian	3-12	56	8	Christian (nondenominational)
Northwest Childrens Home Educ Center	Lewiston	2-12	42	14	Nonsectarian
Lewis Clark Christian	Lewiston	K-12	39	6.7	Christian (nondenominational)
River of Life Christian School	Payette	PreK-12	38	7.6	Christian (nondenominational)
Silver Valley Christian Academy	Kellogg	PreK-12	35	35	Christian (nondenominational)
Alzar School	Cascade	10-11	33	4.7	Nonsectarian
Cherry Gulch	Emmett	6-9	29	4.8	Nonsectarian, all-boys
Mary Immaculate Queen School	Rathdrum	K-12	29	6.3	Roman Catholic
Clear Lakes Christian Academy	Buhl	K-11	25	8.9	Christian (nondenominational)
Waymaker Christian Academy	Coeur D Alene	Transitional 1st-11	25	4.5	Christian (nondenominational)
Boise Girls Academy-Teen Challenge Pacific Northwe	Nampa	6-11	16	10	Christian (nondenominational), all-girls
St. Joseph Seminary	Rathdrum	7-12	12	12	Roman Catholic, all-boys

Other kinds of school in Idaho

What Idaho pays

ID

Idaho Parental Choice Tax Credit Refundable tax credit

Up to $5,000 per student Up to $7,500 for a student with a qualifying disability. It follows the tax year, so 2026 expenses are claimed in early 2027.

Figures read from each program’s official pages, October 2, 2026. Sources and how to apply

Get one email when applications open

Most programs open once a year, and several ran out of money or seats in 2026. Pick your state and we will email you the day the next window opens, with the official link. That is the only email you get.

One email per application window. No calls, no sharing your details.