Serving 790 students in grades Kindergarten-6, Helen Carr Castello 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 57% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 63% (which is higher than the California state average of 47%).
The student-teacher ratio of 24:1 is higher than the California state level of 21:1.
Minority enrollment is 87% of the student body (majority Asian), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: Kindergarten-6
- Enrollment: 790 students
- Student-Teacher Ratio: 24:1
- Minority Enrollment: 87%
- Overall Testing Rank: Top 20% in CA
- Math Proficiency: 57% (Top 20%)
- Reading Proficiency: 63% (Top 20%)
- Science Proficiency: 50-54% (Top 20%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Helen Carr Castello Elementary School ranks among the top 20% of public schools in California for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Diversity
School Overview
Helen Carr Castello Elementary School's student population of 790 students has declined by 6% over five school years.
The teacher population of 33 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Kindergarten-6
Total Students
790 students
Total Classroom Teachers
33 teachers
Year Founded
1908
School Rankings
Helen Carr Castello 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 Helen Carr Castello Elementary School is 0.73, 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
#1566 out of 9523 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
57%
34%
Reading/Language Arts Test Scores (% Proficient)
63%
47%
Science Test Scores (% Proficient)
50-54%
29%
Student-Teacher Ratio
24:1
21:1
American Indian
n/a
1%
Asian
43%
12%
Hispanic
24%
56%
Black
8%
5%
White
13%
20%
Hawaiian
n/a
n/a
Two or more races
12%
6%
All Ethnic Groups
Eligible for Free Lunch
36%
54%
Eligible for Reduced Lunch
14%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Helen Carr Castello Elementary School's ranking?
Helen Carr Castello Elementary School is ranked #1566 out of 9,523 schools, which ranks it among the top 20% of public schools in California.
What schools are Helen Carr Castello Elementary School often compared to?
Helen Carr Castello Elementary Schoolis often viewed alongside schools like Arlene Hein Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
57% of students have achieved math proficiency (compared to the 34% CA state average), while 63% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Helen Carr Castello Elementary School?
790 students attend Helen Carr Castello Elementary School.
What is the racial composition of the student body?
43% of Helen Carr Castello Elementary School students are Asian, 24% of students are Hispanic, 13% of students are White, 12% of students are Two or more races, and 8% of students are Black.
What is the student-teacher ratio of Helen Carr Castello Elementary School?
Helen Carr Castello Elementary School has a student ration of 24:1, which is higher than the California state average of 21:1.
What grades does Helen Carr Castello Elementary School offer ?
Helen Carr Castello Elementary School offers enrollment in grades Kindergarten-6
What school district is Helen Carr Castello Elementary School part of?
Helen Carr Castello Elementary School is part of Elk Grove Unified School District.
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