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Oldest Private Schools in Illinois

The average private school in Illinois was founded around 1962 (2026-27).

The oldest private school in Illinois is Zion Christian School, founded in 1810.

Quick Facts (26-27)

# IL Schools Ranked: 1,157
Top 20 Range (Year Founded): 1810–1853
IL School Avg.: 1962
National School Avg.: 1967

Quick Facts (26-27)

# IL Schools Ranked: 1,157
Top 20 Range (Year Founded): 1810–1853
IL School Avg.: 1962
National School Avg.: 1967

Frequently Asked Questions

What is the Illinois average private schools founding year?

The Illinois average private schools founding year is 1962 for 2026-27.

What are the private schools with oldest founding year in Illinois?

The top ranked private schools in Illinois include Zion Christian School, Most Blessed Trinity Academy and St. Marys School.

What is private high school and private elementary school with the oldest founding year in Illinois?

The private high school with the oldest founding year in Illinois is Zion Christian School, with a year of 1810. The private elementary school with the oldest founding year is Zion Christian School, with a year of 1810.

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