Serving 251 students in grades Kindergarten-6, Armstrong 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 40-44% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 50-54% (which is higher than the California state average of 47%).
The student-teacher ratio of 18:1 is lower than the California state level of 21:1.
Minority enrollment is 90% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: Kindergarten-6
- Enrollment: 251 students
- Student-Teacher Ratio: 18:1
- Minority Enrollment: 90%
- Overall Testing Rank: Top 50% in CA
- Math Proficiency: 40-44% (Top 50%)
- Reading Proficiency: 50-54% (Top 50%)
- Science Proficiency: 40-49% (Top 30%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Armstrong Elementary School's student population of 251 students has declined by 13% over five school years.
The teacher population of 14 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Kindergarten-6
Total Students
251 students
Total Classroom Teachers
14 teachers
Year Founded
2025
School Calendar
School Rankings
Armstrong 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 Armstrong Elementary School is 0.60, which is less 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
#2882 out of 9523 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
40-44%
34%
Reading/Language Arts Test Scores (% Proficient)
50-54%
47%
Science Test Scores (% Proficient)
40-49%
29%
Student-Teacher Ratio
18:1
21:1
Asian
15%
12%
Hispanic
60%
56%
Black
6%
5%
White
10%
20%
Two or more races
9%
6%
All Ethnic Groups
Chronically Absent Students
(22-23)36.7%
27.7%
Eligible for Free Lunch
49%
54%
Eligible for Reduced Lunch
18%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Armstrong Elementary School's ranking?
Armstrong Elementary School is ranked #2882 out of 9,523 schools, which ranks it among the top 50% of public schools in California.
What percent of students have achieved state testing proficiency in math and reading?
40-44% of students have achieved math proficiency (compared to the 34% CA state average), while 50-54% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Armstrong Elementary School?
251 students attend Armstrong Elementary School.
What is the racial composition of the student body?
60% of Armstrong Elementary School students are Hispanic, 15% of students are Asian, 10% of students are White, 9% of students are Two or more races, and 6% of students are Black.
What is the student-teacher ratio of Armstrong Elementary School?
Armstrong Elementary School has a student ration of 18:1, which is lower than the California state average of 21:1.
What grades does Armstrong Elementary School offer ?
Armstrong Elementary School offers enrollment in grades Kindergarten-6
What school district is Armstrong Elementary School part of?
Armstrong Elementary School is part of Pomona Unified School District.
School Reviews
Review Armstrong Elementary School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.
