Serving 571 students in grades Kindergarten-6, Mission Elementary School ranks in the bottom 50% of all schools in California for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 28% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 32% (which is lower 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 97% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2026-27)
- Grades: Kindergarten-6
- Enrollment: 571 students
- Student-Teacher Ratio: 24:1
- Minority Enrollment: 97%
- Overall Testing Rank: Bottom 50% in CA
- Math Proficiency: 28% (Btm 50%)
- Reading Proficiency: 32% (Btm 50%)
- Science Proficiency: 6-9% (Btm 50%)
- Attendance Zone: Mission Elementary serves the southwest part of Ontario, CA, covering an area of approximately 1 square mile. Families within this zone can typically expect a drive of 5-10 minutes to reach the school, with the furthest edge being about 1.7 miles away.
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Mission Elementary School's student population of 571 students has stayed relatively flat over five school years.
The teacher population of 24 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Kindergarten-6
Total Students
571 students
Total Classroom Teachers
24 teachers
School Calendar
School Rankings
Mission Elementary School ranks within the bottom 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Mission Elementary School is 0.21, 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
#5645 out of 9523 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
28%
34%
Reading/Language Arts Test Scores (% Proficient)
32%
47%
Science Test Scores (% Proficient)
6-9%
29%
Student-Teacher Ratio
24:1
21:1
American Indian
1%
1%
Asian
3%
12%
Hispanic
89%
56%
Black
4%
5%
White
3%
20%
Hawaiian
n/a
n/a
Two or more races
n/a
6%
All Ethnic Groups
Chronically Absent Students
(22-23)33.1%
27.7%
Eligible for Free Lunch
73%
54%
Eligible for Reduced Lunch
15%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Mission Elementary School's ranking?
Mission Elementary School is ranked #5645 out of 9,523 schools, which ranks it among the bottom 50% of public schools in California.
What schools are Mission Elementary School often compared to?
Mission Elementary Schoolis often viewed alongside schools like Mountain View Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
28% of students have achieved math proficiency (compared to the 34% CA state average), while 32% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Mission Elementary School?
571 students attend Mission Elementary School.
What is the racial composition of the student body?
89% of Mission Elementary School students are Hispanic, 4% of students are Black, 3% of students are Asian, 3% of students are White, and 1% of students are American Indian.
What is the student-teacher ratio of Mission Elementary School?
Mission Elementary School has a student ration of 24:1, which is higher than the California state average of 21:1.
What grades does Mission Elementary School offer ?
Mission Elementary School offers enrollment in grades Kindergarten-6
What school district is Mission Elementary School part of?
Mission Elementary School is part of Ontario-Montclair School District.
School Reviews
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