Serving 527 students in grades Kindergarten-5, Altadena Elementary School ranks in the top 50% of all schools in California for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 35-39% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 35-39% (which is lower than the California state average of 47%).
The student-teacher ratio of 23:1 is higher than the California state level of 21:1.
Minority enrollment is 73% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: Kindergarten-5
- Enrollment: 527 students
- Student-Teacher Ratio: 23:1
- Minority Enrollment: 73%
- Overall Testing Rank: Top 50% in CA
- Math Proficiency: 35-39% (Top 50%)
- Reading Proficiency: 35-39% (Btm 50%)
- Science Proficiency: 20-29% (Top 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Altadena Elementary School ranks among the top 20% of public schools in California for:
Category
Attribute
Diversity
School Overview
Altadena Elementary School's student population of 527 students has grown by 12% over five school years.
The teacher population of 23 teachers has grown by 43% over five school years.
Grades Offered
Grades Kindergarten-5
Total Students
527 students
Total Classroom Teachers
23 teachers
School Rankings
Altadena Elementary School ranks within the top 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Altadena Elementary School is 0.71, 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
#4369 out of 9523 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
35-39%
34%
Reading/Language Arts Test Scores (% Proficient)
35-39%
47%
Science Test Scores (% Proficient)
20-29%
29%
Student-Teacher Ratio
23:1
21:1
American Indian
n/a
1%
Asian
4%
12%
Hispanic
44%
56%
Black
12%
5%
White
27%
20%
Hawaiian
n/a
n/a
Two or more races
13%
6%
All Ethnic Groups
Eligible for Free Lunch
48%
54%
Eligible for Reduced Lunch
5%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Altadena Elementary School's ranking?
Altadena Elementary School is ranked #4369 out of 9,523 schools, which ranks it among the top 50% of public schools in California.
What schools are Altadena Elementary School often compared to?
Altadena Elementary Schoolis often viewed alongside schools like Cleveland Elementary School, Hamilton Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
35-39% of students have achieved math proficiency (compared to the 34% CA state average), while 35-39% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Altadena Elementary School?
527 students attend Altadena Elementary School.
What is the racial composition of the student body?
44% of Altadena Elementary School students are Hispanic, 27% of students are White, 13% of students are Two or more races, 12% of students are Black, and 4% of students are Asian.
What is the student-teacher ratio of Altadena Elementary School?
Altadena Elementary School has a student ration of 23:1, which is higher than the California state average of 21:1.
What grades does Altadena Elementary School offer ?
Altadena Elementary School offers enrollment in grades Kindergarten-5
What school district is Altadena Elementary School part of?
Altadena Elementary School is part of Pasadena Unified School District.
School Reviews
5 10/10/2025
I would like to see pictures of myself and the students who attend the school back in 1955 please. thank you
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