Excellent
#6 of 2,006 schools in AZ
Top 1% 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
9.7
Grades
Kindergarten – 6th
Enrollment
122
Student-Teacher
9.4:1
Score
9.7
Grades
Kindergarten – 6th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Arizona schools
#6 of 2,006
In Casa Grande
#1 of 20
public schools
In district
#1 of 2
Mary C O'Brien Accommodation District (4435)
School environment
9.9 / 10
Excellent
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Mary C O'brien Elementary School
Elementary School in Casa Grande · grades Kindergarten – 6th. Start here, then compare fit against nearby and district options.
Cavit - Central Arizona Valley Institute of Technology
5.7 mi away. Use as a geographic alternative in the same move search.
West Elementary School
6.1 mi away. Use as a geographic alternative in the same move search.
About Mary C O'brien Elementary School
Mary C O'brien Elementary School is a public elementary school in Casa Grande, AZ, part of Mary C O'Brien Accommodation District (4435). Mary C O'brien Elementary School serves approximately 122 students, and covers grades Kindergarten-6th, and has a 9.4:1 student-teacher ratio. Mary C O'brien Elementary School has a current MySchoolScout rating of 9.7 out of 10 and ranks #6 of 2,006 schools in AZ.
Structured state assessment records for Mary C O'brien Elementary School show 71% math proficiency (multi-year average, 2009-2022) and 80% reading/ELA proficiency (multi-year average, 2009-2022).
- This school 9.7 · Excellent
- AZ avg 6.4
What Parents Should Know
At 122 students, Mary C O'brien Elementary School is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.
At 9.4:1 students to teachers, Mary C O'brien Elementary School sits well below the national average. Smaller classes like that usually mean more one-on-one time between students and teachers.
Mary C O'brien Elementary School sits in a rural area, which can mean longer drives for some families. Rural schools are often community anchors with smaller classes, but check transportation, after-school options, and access to specialized services before you commit.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
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%).
Test Scores AZ EDFACTS (2021-22)
Based on 28 test records from AZ state assessments. About our data
Proficiency Trend
→ StableAverage 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: 9.6/10.
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.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
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 6.1/10, 9.7 miles away, in nearby Coolidge), a more accessible option. Another option is Heartland Ranch Elementary School (rated 5.8/10, 6.4 miles away, in nearby Coolidge), a more accessible option. Additionally, Imagine Coolidge Elementary (rated 5.6/10, 6.9 miles away, in nearby Phoenix), 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 | 8.1 |
| West Elementary School Coolidge | 6.1 mi | 4.7 |
| Heartland Ranch Elementary School Coolidge | 6.4 mi | 5.8 |
| CAVIT - Coolidge High School Coolidge | 6.6 mi | — |
| Coolidge High School Coolidge | 6.6 mi | 7.0 |
| Coolidge Jr. High School Coolidge | 6.7 mi | 4.3 |
| Coolidge Alternative Program Coolidge | 6.7 mi | 4.8 |
| Coolidge Virtual Academy Coolidge | 6.7 mi | 2.5 |
| Imagine Prep Coolidge Coolidge | 6.9 mi | 3.3 |
| Imagine Coolidge Elementary Phoenix | 6.9 mi | 5.6 |
| Villa Oasis Interscholastic Center For Education (voice) Casa Grande | 7.7 mi | 7.1 |
| Toltec Elementary School Eloy | 8.1 mi | 4.0 |
| Curiel School Eloy | 9.1 mi | 4.3 |
| Santa Cruz Valley Union High School Eloy | 9.2 mi | 7.3 |
| Santa Cruz Center for Success Eloy | 9.2 mi | 5.6 |
| Eloy Intermediate School Eloy | 9.2 mi | 5.3 |
| Eloy Junior High School Eloy | 9.4 mi | 4.9 |
| 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 | 6.1 |
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
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Mexicayotl Charter School Nogales, AZ | 9.7 |
| Scottsdale Country Day School Scottsdale, AZ | 9.3 |
| Discovery Plus Academy Pima, AZ | 9.1 |
| Khalsa Montessori Elementary School - Phoenix Phoenix, AZ | 9.0 |
| SCOTTSDALE CHILD CARE AND LEARNING CENTER Scottsdale, AZ | 9.0 |
| Pine Strawberry Elementary School Pine, AZ | 8.9 |
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 ranks #6 of 2,006 schools in AZ.
What is Mary C O'brien Elementary School's MySchoolScout rating?
Mary C O'brien Elementary School has a current MySchoolScout rating of 9.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Mary C O'brien Elementary School?
Based on loaded state assessment records, Mary C O'brien Elementary School has 71% math proficiency (multi-year average, 2009-2022) and 80% reading/ELA proficiency (multi-year average, 2009-2022).
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
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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
- Chronic Absenteeism (SY 2022-23)
- 26.2%
- Phone
- (520) 450-4400
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
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