Excellent
#1390 of 9,533 schools in CA
Top 15% in state
Mariposa Elementary
Elementary School · Ontario-Montclair
1605 East D St., Ontario, CA 91764
Enrollment
567
Student-Teacher
21.8:1
Score
8.0
Grades
Kindergarten – 6th
Enrollment
567
Student-Teacher
21.8:1
Score
8.0
Grades
Kindergarten – 6th
Updated
2022-23
Updated 2022-23
How this school compares
In Ontario
#8 of 37
public schools
California elementary schools
#988 of 5,817
In district
#11 of 33
Ontario-Montclair
Academic growth
8.9 / 10
Exceptional
About Mariposa Elementary
Mariposa Elementary is a regular public elementary school in Ontario, California. Serving kindergarten through sixth grade, the school enrolls 567 students and has a student-teacher ratio of 21.8:1 with 26 full-time equivalent teachers. Mariposa Elementary’s MySchoolScout rating is 5.5 out of 10, placing it at number 4693 among California's 9566 schools—a rank in the 51st percentile.
The school focuses on academic development, with 33% of students meeting or exceeding proficiency standards in ELA/Reading and 29% in Math. While Mariposa Elementary has room for improvement academically, it remains a vital part of Ontario’s educational community. Located in the heart of a mid-size city, the school benefits from being part of an urban setting with diverse opportunities for students to engage with their surroundings.
What Parents Should Know
The student-teacher ratio at Mariposa Elementary is 21.8:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Score Breakdown
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Mariposa Elementary — Students at Mariposa Elementary score 31% proficient, which is above what's typical for similar communities (expected: 20%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
95.4%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 10 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 8.9/10.
How Mariposa Elementary Compares
See how Mariposa Elementary performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has improved from 24% (2019) to 29.1% (2024). Reading/ELA proficiency has remained stable from 33% (2019) to 32.58% (2024).
Location
1605 East D St., Ontario, CA 91764
Nearby Alternatives
Families considering Mariposa Elementary may also want to explore other elementary schools in the area. Online Academy (rated 9.1/10, 1.9 miles away), which scores notably higher. Another option is Corona Elementary (rated 8.6/10, 0.8 miles away), which scores slightly higher. Additionally, Berlyn Elementary (rated 8.2/10, 1.5 miles away), with a very similar rating. For more schools in Ontario, see our Ontario schools guide .
Nearby Schools
20 within 2.1 mi| School | Distance | Rating |
|---|---|---|
| Ray Wiltsey Middle Ontario | 0.2 mi | 7.1 |
| Del Norte Elementary Ontario | 0.5 mi | 5.4 |
| Corona Elementary Ontario | 0.8 mi | 8.6 |
| Vineyard Elementary Ontario | 1.1 mi | 5.2 |
| Lincoln Elementary Ontario | 1.0 mi | 7.1 |
| Valley View High (Continuation) Ontario | 1.2 mi | 6.0 |
| Arroyo Elementary Ontario | 1.4 mi | 6.2 |
| Chaffey District Online High Ontario | 1.4 mi | 8.1 |
| Chaffey Community Day Ontario | 1.4 mi | — |
| SAN ANTONIO CHRISTIAN SCHOOL Ontario | 1.6 mi | 6.5 |
| Berlyn Elementary Ontario | 1.5 mi | 8.2 |
| Central Language Academy Ontario | 1.6 mi | 7.5 |
| Los Amigos Elementary Rancho Cucamonga | 2.0 mi | 4.7 |
| Online Academy Ontario | 1.9 mi | 9.1 |
| Edison Elementary Ontario | 1.9 mi | 8.2 |
| INLAND CONSERVATORY FOR THE PERFORMING ARTS SCHOOL Ontario | 1.9 mi | 7.6 |
| MONTESSORI SCHOOL HOUSE Rancho Cucamonga | 2.1 mi | 7.1 |
| Fountain of Truth Christian Academy Rancho Cucamonga | 2.3 mi | — |
| FOUNTAIN OF TRUTH CHRISTIAN ACADEMY Rancho Cucamonga | 2.3 mi | 5.7 |
| De Anza Middle Ontario | 2.1 mi | 8.8 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 91764 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$75,605
Median Home Value
$524,100
Median Rent
$2,039/mo
Population
55,412
College Educated
18.4%
Homeownership
44.6%
Avg Commute
31.1 min
Poverty Rate
16.8%
Median Age
31.9
Community Profile
The community surrounding Mariposa Elementary has a median household income of $75,605. It is a community where 18% of adults hold a bachelor's degree or higher. The median home value in the area is $524,100, with a median rent of $2,039/month. The area has a poverty rate of 16.8%. The average commute for residents is 31 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Adobe Bluffs Elementary San Diego, CA | 8.0 |
| Akers Elementary Lemoore, CA | 8.0 |
| Betty Plasencia Elementary Los Angeles, CA | 8.0 |
| Birdielee V. Bright Elementary Los Angeles, CA | 8.0 |
| Brookhaven Elementary Placentia, CA | 8.0 |
| Capistrano Avenue Elementary West Hills, CA | 8.0 |
Frequently Asked Questions
Common questions about Mariposa Elementary
What grades does Mariposa Elementary serve?
Mariposa Elementary serves students in grades Kindergarten through 6th.
How many students attend Mariposa Elementary?
Mariposa Elementary has an enrollment of approximately 567 students.
What is the student-teacher ratio at Mariposa Elementary?
The student-teacher ratio at Mariposa Elementary is 21.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mariposa Elementary rank in CA?
Mariposa Elementary is ranked #1390 out of 9,533 schools in CA.
What is Mariposa Elementary's MySchoolScout rating?
Mariposa Elementary has a composite rating of 8.0 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Mariposa Elementary?
Based on the most recent state assessment data, Mariposa Elementary has 28.5% math proficiency and 32.7% reading/ELA proficiency.
Is Mariposa Elementary a charter school?
No, Mariposa Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Mariposa Elementary a Title I school?
No, Mariposa Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Mariposa Elementary?
95.4% of students at Mariposa Elementary qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
- Walk Score
- 38 Car-Dependent
- Transit Score
- 31 Some Transit
- Bike Score
- 40 Somewhat Bikeable
- City Safety
- High (2,102/100K)
Powered by 
FBI UCR 2024. City-level (Ontario). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 6th
- Enrollment
- 567
- Student-Teacher Ratio
- 21.8:1
- Teachers (FTE)
- 26
- Free/Reduced Lunch
- 95.4%
- Type
- regular
- Setting
- Midsize City
- County
- San Bernardino County
- Phone
- (909) 983-4116
- Data Year
- 2023–2024
Resources & Links
District
Ontario-Montclair- District Enrollment
- 17,944
- Schools in District
- 33
- Per-Pupil Spending
- $21,882
- District Rank
- #11 of 33
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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