Serving 372 students in grades Kindergarten-6, Cobblestone Elementary School ranks in the top 20% of all schools in California for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 60% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 64% (which is higher than the California state average of 47%).
The student-teacher ratio of 21:1 is equal to the California state level of 21:1.
Minority enrollment is 45% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: Kindergarten-6
- Enrollment: 372 students
- Student-Teacher Ratio: 21:1
- Minority Enrollment: 45%
- Overall Testing Rank: Top 20% in CA
- Math Proficiency: 60% (Top 20%)
- Reading Proficiency: 64% (Top 20%)
- Science Proficiency: 40-49% (Top 30%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Cobblestone Elementary School ranks among the top 20% of public schools in California for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
School Overview
Cobblestone Elementary School's student population of 372 students has stayed relatively flat over five school years.
The teacher population of 18 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Kindergarten-6
Total Students
372 students
Total Classroom Teachers
18 teachers
Year Founded
1991
Colors
Blue and Gold
School Calendar
School Motto
Ignite and Empower All Students to Thrive in Every Aspect of Life
School Rankings
Cobblestone Elementary School ranks within the top 20% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Cobblestone Elementary School is 0.64, which is more than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1470 out of 9523 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
60%
34%
Reading/Language Arts Test Scores (% Proficient)
64%
47%
Science Test Scores (% Proficient)
40-49%
29%
Student-Teacher Ratio
21:1
21:1
American Indian
1%
1%
Asian
13%
12%
Hispanic
19%
56%
White
55%
20%
Two or more races
12%
6%
All Ethnic Groups
Chronically Absent Students
(22-23)16.1%
27.7%
Eligible for Free Lunch
29%
54%
Eligible for Reduced Lunch
2%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Cobblestone Elementary School's ranking?
Cobblestone Elementary School is ranked #1470 out of 9,523 schools, which ranks it among the top 20% of public schools in California.
What percent of students have achieved state testing proficiency in math and reading?
60% of students have achieved math proficiency (compared to the 34% CA state average), while 64% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Cobblestone Elementary School?
372 students attend Cobblestone Elementary School.
What is the racial composition of the student body?
55% of Cobblestone Elementary School students are White, 19% of students are Hispanic, 13% of students are Asian, 12% of students are Two or more races, and 1% of students are American Indian.
What is the student-teacher ratio of Cobblestone Elementary School?
Cobblestone Elementary School has a student ration of 21:1, which is equal to the California state average of 21:1.
What grades does Cobblestone Elementary School offer ?
Cobblestone Elementary School offers enrollment in grades Kindergarten-6
What school district is Cobblestone Elementary School part of?
Cobblestone Elementary School is part of Rocklin Unified School District.
School Reviews
2 10/10/2025
I do not recommend this school. The supervision of students is extremely deficient, and there is no assistance from the principal (or teachers) for problems with bullying. Much is kept from parents, and children are encouraged by the school to not report, and their concerns are dismissed or minimized. Not a healthy environment for children who are not able to fend for themselves.
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