The average private high school in North Dakota was founded around 1955 (2026-27).
The oldest private high school in North Dakota is St. Mary's Central High School, founded in 1878.
Quick Facts (26-27)
- # ND Schools Ranked: 13
- Top 20 Range (Year Founded): 1878–1992
- ND School Avg.: 1954
- National School Avg.: 1967



