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Greenleaf Friends Academy Top 3 · Oldest Founding Date (ID)

Nampa Christian Schools Top 5 · Lowest Acceptance Rate (ID)

Zion Lutheran School Top 17 · Oldest Founding Date (ID)

Home > Idaho > Average Founding Date

Oldest Private High Schools in Idaho

The average private high school in Idaho was founded around 1981 (2026-27).

The oldest private high school in Idaho is Greenleaf Friends Academy, founded in 1908.

Quick Facts (2026-27)

# ID Schools Ranked: 31
Top 20 Range (Year Founded): 1908–1995
ID School Avg.: 1980
National School Avg.: 1967

Quick Facts (2026-27)

# ID Schools Ranked: 31
Top 20 Range (Year Founded): 1908–1995
ID School Avg.: 1980
National School Avg.: 1967

Frequently Asked Questions

What is the Idaho average private high schools founding year?

The Idaho average private high schools founding year is 1981 for 2026-27.

What are the private high schools with oldest founding year in Idaho?

The top ranked private high schools in Idaho include Greenleaf Friends Academy, Beacon Christian School and Gem State Adventist Academy.

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