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Castle Rock Elementary

Diamond Bar, California · Grades K to 5 · Walnut Valley Unified

Public school

About Castle Rock Elementary

Castle Rock Elementary is a public school in Diamond Bar, California, serving kindergarten through grade 5. Enrollment was 684 in the 2024-25 school year. That is about average in size for public and charter elementary schools in Diamond Bar. There are about 26.1 students for every full-time-equivalent teacher (26.2 teachers in all). Federal locale data places it in a suburb of a large metro area, in Los Angeles County. It is one of 15 schools in Walnut Valley Unified. There are 71 other schools within 5 miles.

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School facts

Address	2975 Castle Rock Rd., Diamond Bar, CA 91765
Phone	(909) 598-5006
School district	Walnut Valley Unified
Grades	K to 5
Students (2024-25)	684
Teachers (full-time equivalent, 2024-25)	26.2
Students per teacher	26.1
Charter school	No
School type	Regular
Level	Elementary
Locale (NCES)	Suburb, large, Los Angeles County

Source: NCES Common Core of Data (CCD), 2024-25 public school directory and membership files (NCES school ID 064128006833). Details may have changed since the survey. Schools can update them by claiming this profile.

Nearby schools

Landmark Christian PreschoolPrivate, Christian (nondenominational) · Grades PreK to TKDiamond Bar · 0.7 mi Evergreen ElementaryPublic · Grades K to 5Diamond Bar · 0.7 mi Diamond Bar HighPublic · Grades 9 to 12Diamond Bar · 0.7 mi South Pointe MiddlePublic · Grades 6 to 8Walnut, CA · 1.4 mi Tzu Chi Elementary SchoolPrivate · Grades K to 5Walnut, CA · 1.6 mi Tzu Chi Elementary SatoaPrivate · Grades PreK to 5Walnut, CA · 1.6 mi Elite Open SchoolPrivate · Grades 4 to 12Rowland Heights, CA · 1.9 mi Maple Hill ElementaryPublic · Grades K to 5Diamond Bar · 2 mi

The 8 closest public, charter and private schools by straight-line distance, from NCES location data. Listings here are never paid.

Frequently asked questions

What grades does Castle Rock Elementary serve?

Castle Rock Elementary serves kindergarten through grade 5.

How many students attend Castle Rock Elementary?

Castle Rock Elementary reported 684 students in 2024-25, according to the NCES Common Core of Data.

What is the student-teacher ratio at Castle Rock Elementary?

About 26.1 students per full-time-equivalent teacher, based on 684 students and 26.2 teachers in federal data.

Is Castle Rock Elementary a public or charter school?

Castle Rock Elementary is a traditional public (non-charter) school.

What school district is Castle Rock Elementary in?

Castle Rock Elementary is part of Walnut Valley Unified. See all schools in this district at https://parentschoolreview.com/districts/ca/walnut-valley-unified/

Where is Castle Rock Elementary located?

Castle Rock Elementary is at 2975 Castle Rock Rd., Diamond Bar, CA 91765. The phone number is (909) 598-5006.

How many other schools are near Castle Rock Elementary?

There are 71 other schools within 5 miles of Castle Rock Elementary in our directory.