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Top 10 Elementary Schools in Brentwood, California

The highest-scoring elementary schools in Brentwood based on our 6-dimension composite analysis of 2025 CAASPP data (state average: 45.5).

What separates the top from the rest: The top 3 schools average 28.0% Exceeded Standard, compared to 22.0% for the bottom 3 on this list. The exceeded rate — not just the met rate — is the clearest differentiator between good and great schools.

# School County Score Exceeded Met+ Absent Susp.
1 R. Paul Krey Elementary
Brentwood Union
 Contra Costa 57.9 30.7% 54.9% 12.9% 0.9%
2 Loma Vista Elementary
Brentwood Union
 Contra Costa 56.9 27.8% 60.4% 12.1% 0.5%
3 Ron Nunn Elementary
Brentwood Union
 Contra Costa 49.0 25.5% 53.7% 12.0% 1.6%
4 Pioneer Elementary
Brentwood Union
 Contra Costa 48.8 25.4% 48.3% 14.2% 3.6%
5 Brentwood Elementary
Brentwood Union
 Contra Costa 48.2 23.4% 48.4% 13.4% 1.1%
6 Isaac R. Montañez Elementary
Brentwood Union
 Contra Costa 47.6 24.6% 56.1% 11.6% 2.3%
7 Marsh Creek Elementary
Brentwood Union
 Contra Costa 46.6 18.3% 43.6% 16.5% 2.1%
8 Old River Elementary
Knightsen Elementary
 Contra Costa 46.2 22.1% 53.2% 14.0% 2.0%
9 Garin Elementary
Brentwood Union
 Contra Costa 45.8 24.1% 51.2% 13.2% 0.7%
10 Mary Casey Black Elementary
Brentwood Union
 Contra Costa 43.7 19.9% 44.4% 12.3% 2.4%

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