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Average Private High School ACT Scores in California

Name: California Average ACT Score Trends (High School)
Creator: Private School Review
License: https://www.privateschoolreview.com/terms

The averageprivate high school ACT score in California is 28 (2026-27).

The private high school in California with the highest ACT score is Elite Open School, with an ACT score of 35.

Quick Facts (26-27)

# CA Schools Ranked: 119
Top 20 Range (Avg ACT): 32–35
CA School Avg.: 27.6
National School Avg.: 25

Quick Facts (26-27)

# CA Schools Ranked: 119
Top 20 Range (Avg ACT): 32–35
CA School Avg.: 27.6
National School Avg.: 25

California Average ACT Score (Trends)

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

Total Growth: +3.8% (+1 since 2016)

View Data

Year	National avg	California (CA) avg	YoY Change (#)	YoY Change (%)
2025	26	27	— 0	— 0.0%
2024	26	27	— 0	— 0.0%
2023	26	27	— 0	— 0.0%
2022	26	27	— 0	— 0.0%
2021	26	27	— 0	— 0.0%
2020	26	27	▲ +1	▲ +3.8%
2019	25	26	— 0	— 0.0%
2018	25	26	— 0	— 0.0%
2017	25	26	— 0	— 0.0%
2016	25	26	— 0	— 0.0%
2015	25	26	—	—

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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 — California (avg ACT range: 32–35, avg 27.6)

Act Score Range: 30 35 Avg. Act Score: 32

Frequently Asked Questions

What is the California average private high schools ACT score?

The California average private high schools ACT score is 28 for 2026-27.

What are the private high schools with the highest ACT score in California?

The top ranked private schools in California include Elite Open School, BASIS Independent Fremont Lower School and BASIS Independent Fremont Upper School.

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