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Home > Find Schools > School Rankings > Average Student Size > South Dakota

Largest South Dakota Private High Schools

Name: South Dakota Average Students Per School Trends (High School)
Creator: Private School Review
License: https://www.privateschoolreview.com/terms

The average private high school in South Dakota has 234 students (2026-27).

The largest private high school in South Dakota is Sioux Falls Christian Schools, with 1,615 students.

Quick Facts (26-27)

# SD Schools Ranked: 31
Top 20 Range (Students): 95–1,615
SD School Avg.: 234
National School Avg.: 244

Quick Facts (26-27)

# SD Schools Ranked: 31
Top 20 Range (Students): 95–1,615
SD School Avg.: 234
National School Avg.: 244

South Dakota Average Students Per School (Trends)

Showing 2016–2025. Full 11-year historical data available below ↓

Total Growth: +7.4% (+16 since 2016)

View Data

Year	National avg	South Dakota (SD) avg	YoY Change (#)	YoY Change (%)
2025	253	232	▲ +2	▲ +0.9%
2024	245	230	▲ +16	▲ +7.5%
2023	247	214	▼ -10	▼ -4.5%
2022	257	224	▲ +12	▲ +5.7%
2021	249	212	▲ +20	▲ +10.4%
2020	235	192	▼ -11	▼ -5.4%
2019	242	203	▲ +6	▲ +3.0%
2018	238	197	▼ -24	▼ -10.9%
2017	246	221	▲ +5	▲ +2.3%
2016	241	216	▲ +19	▲ +9.6%
2015	220	197	—	—

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Source: National Center for Education Statistics (NCES) Private School Universe Survey (PSS), direct school submissions, and proprietary website research and analysis by Private School Review.

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Show school map — South Dakota (students range: 95–1,615, avg 234)

School Size Range: 11 1,615 Avg. School Size: 234

Frequently Asked Questions

What is the South Dakota average private high schools student size?

The South Dakota average private high schools student size is 234 for 2026-27.

What are the private high schools with the largest student size in South Dakota?

The top ranked private high schools in South Dakota include Sioux Falls Christian Schools, O'gorman High School and St. Francis Indian School.

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