Excellent
#58 of 2,000 schools in AZ
Top 3% in state
Mary C O'brien Elementary School
Elementary School · Mary C O'Brien Accommodation District (4435)
PO BOX 3125, Casa Grande, AZ 85122
Enrollment
122
Student-Teacher
9.4:1
Score
8.7
Grades
Kindergarten – 6th
Enrollment
122
Student-Teacher
9.4:1
Score
8.7
Grades
Kindergarten – 6th
Updated
2022-23
Updated 2022-23
How this school compares
In Casa Grande
#1 of 15
public schools
Arizona elementary schools
#54 of 1,216
In district
#1 of 2
Mary C O'Brien Accommodation District (4435)
School environment
9.9 / 10
Exceptional
About Mary C O'brien Elementary School
Mary C O'brien Elementary School is a public elementary school in Casa Grande, AZ, part of the Mary C O'Brien Accommodation District (4435). The school serves approximately 122 students in grades Kindergarten – 6th with a student-teacher ratio of 9.4:1. It holds a MySchoolScout rating of 8.7/10, placing it in the 97.2th percentile among AZ schools — an above average rating overall.
Students demonstrate 73% proficiency in math and 76% in reading/language arts. The school scores particularly well in school environment (9.9/10). Located in a neighborhood with a median household income of $64,243, where 19% of adults hold a bachelor's degree or higher.
The school is situated in a distant rural setting.
What Parents Should Know
With an enrollment of 122 students, Mary C O'brien Elementary School is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.
With a student-teacher ratio of 9.4:1, Mary C O'brien Elementary School offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.
Located in a rural area, Mary C O'brien Elementary School may involve longer commutes for some families. Rural schools often serve as community anchors and may have smaller class sizes, but parents should consider transportation logistics, after-school program availability, and access to specialized services.
Score Breakdown
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Mary C O'brien Elementary School — Students at Mary C O'brien Elementary School score 74% proficient, which is above what's typical for similar communities (expected: 37%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
0.1%
Students qualifying for federal meal assistance
Test Scores AZ EDFACTS (2021-22)
Based on 6 test records from AZ state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 7.5/10.
How Mary C O'brien Elementary School Compares
See how Mary C O'brien Elementary School performs across key quality dimensions compared to state benchmarks.
Performance Trends
Math proficiency has declined from 82% (2019) to 72% (2022). Reading/ELA proficiency has remained stable from 77% (2019) to 77% (2022).
Location
PO BOX 3125, Casa Grande, AZ 85122
Nearby Alternatives
Families considering Mary C O'brien Elementary School may also want to explore other elementary schools in the area. Blackwater Community School (rated 8.1/10, 9.7 miles away, in nearby Coolidge), with a comparable rating. Another option is Eloy Intermediate School (rated 7.1/10, 9.2 miles away, in nearby Eloy), a more accessible option. Additionally, Curiel School (rated 7.0/10, 9.1 miles away, in nearby Eloy), a more accessible option. For more schools in Casa Grande, see our Casa Grande schools guide .
Nearby Schools
20 within 9.7 mi| School | Distance | Rating |
|---|---|---|
| CAVIT - Central Arizona Valley Institute of Technology Coolidge | 5.7 mi | — |
| West Elementary School Coolidge | 6.1 mi | 5.8 |
| Heartland Ranch Elementary School Coolidge | 6.4 mi | 6.8 |
| CAVIT - Coolidge High School Coolidge | 6.6 mi | — |
| Coolidge High School Coolidge | 6.6 mi | 7.2 |
| Coolidge Jr. High School Coolidge | 6.7 mi | 5.8 |
| Coolidge Alternative Program Coolidge | 6.7 mi | 5.4 |
| Coolidge Virtual Academy Coolidge | 6.7 mi | 3.9 |
| Imagine Prep Coolidge Coolidge | 6.9 mi | 4.4 |
| Imagine Coolidge Elementary Phoenix | 6.9 mi | 6.8 |
| Villa Oasis Interscholastic Center For Education (voice) Casa Grande | 7.7 mi | 7.8 |
| Toltec Elementary School Eloy | 8.1 mi | 5.5 |
| Curiel School Eloy | 9.1 mi | 7.0 |
| Santa Cruz Valley Union High School Eloy | 9.2 mi | 7.4 |
| Santa Cruz Center for Success Eloy | 9.2 mi | 7.4 |
| Eloy Intermediate School Eloy | 9.2 mi | 7.1 |
| Eloy Junior High School Eloy | 9.4 mi | 5.5 |
| Akimel O'Otham Pee Posh (K-2) Coolidge | 9.7 mi | — |
| Akimel O'Otham Pee Posh (3-5) Coolidge | 9.7 mi | — |
| Blackwater Community School Coolidge | 9.7 mi | 8.1 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 85122 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$64,243
Median Home Value
$242,500
Median Rent
$1,289/mo
Population
58,328
College Educated
19.4%
Homeownership
69.2%
Avg Commute
23.4 min
Poverty Rate
14.9%
Median Age
36.4
Community Profile
The community surrounding Mary C O'brien Elementary School has a median household income of $64,243. It is a community where 19% of adults hold a bachelor's degree or higher. The median home value in the area is $242,500, with a median rent of $1,289/month. The area has a poverty rate of 14.9%. The average commute for residents is 23 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 |
|---|---|
| Pearce Elementary School Pearce, AZ | 8.7 |
| Wenden Elementary School Wenden, AZ | 8.6 |
| INTERNATIONAL SCHOOL OF TUCSON Tucson, AZ | 8.5 |
| Elgin Elementary School Elgin, AZ | 8.9 |
| Arizona Language Preparatory Phoenix, AZ | 8.4 |
| La Tierra Community School Prescott, AZ | 8.4 |
Frequently Asked Questions
Common questions about Mary C O'brien Elementary School
What grades does Mary C O'brien Elementary School serve?
Mary C O'brien Elementary School serves students in grades Kindergarten through 6th.
How many students attend Mary C O'brien Elementary School?
Mary C O'brien Elementary School has an enrollment of approximately 122 students.
What is the student-teacher ratio at Mary C O'brien Elementary School?
The student-teacher ratio at Mary C O'brien Elementary School is 9.4:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mary C O'brien Elementary School rank in AZ?
Mary C O'brien Elementary School is ranked #58 out of 2,000 schools in AZ.
What is Mary C O'brien Elementary School's MySchoolScout rating?
Mary C O'brien Elementary School has a composite rating of 8.7 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 Mary C O'brien Elementary School?
Based on the most recent state assessment data, Mary C O'brien Elementary School has 72.8% math proficiency and 76.2% reading/ELA proficiency.
Is Mary C O'brien Elementary School a charter school?
No, Mary C O'brien Elementary School is not a charter school. It is a traditional public school operated by the local school district.
Is Mary C O'brien Elementary School a Title I school?
No, Mary C O'brien Elementary School is not currently a Title I school.
Neighborhood Context
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 6th
- Enrollment
- 122
- Student-Teacher Ratio
- 9.4:1
- Teachers (FTE)
- 13
- Type
- regular
- Setting
- Distant Rural
- County
- Pinal County
- Phone
- (520) 450-4400
- Data Year
- 2023–2024
Resources & Links
District
Mary C O'Brien Accommodation District (4435)- District Enrollment
- 197
- Schools in District
- 2
- Per-Pupil Spending
- $27,922
- District Rank
- #1 of 2
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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