Skip to main content

Walnut valley Unified School District

Main Menu Toggle
ALLmeansALL! Walnut Valley USD is proud to be a National Schools to Watch District with numerous National Blue Ribbon, California Gold Ribbon, and California Distinguished School awards. Our motto is KIDS FIRST... Every Student, Every Day!  
Castle Rock Elementary
Principal Dr. Resma Chamadia-Byrne

An International Baccalaureate Primary Years Programme School
California Distinguished School

2975 Castle Rock Rd., Diamond Bar, CA 91765 • (909) 598-5006