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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

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

Full Profile · 3/3 metrics
Student Progress7.5Very Good50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data3
Annual Change-1.96 pts/yr
Data Period2019–2022
TrendDeclining
Academics9.8Exceptional30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency72%
Reading/ELA Proficiency77%
Overall Proficiency75%
Expected (poverty-adj.)37%
vs. Expected+37.2 pts
Adjusted Percentile97th
College ReadinessNot Available

Data not available for this school

Resources & Environment9.9Exceptional20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio9.4:1
Per-Pupil Spending$26,564

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%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

0.1%

Students qualifying for federal meal assistance

Test Scores AZ EDFACTS (2021-22)

Math Proficiency 72.8%
School
State
N/A
ELA Proficiency 76.2%
School
State
N/A

Based on 6 test records from AZ state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
82%
ELA
77%
2021*
Math
64.5%
ELA
74.5%
2022
Math
72%
ELA
77%

* 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.

Overall Score
8.7/10
97th percentile in AZ
Academic
9.8/10
9.8/10
Growth
7.5/10
Above average
Environment
9.9/10
Above average

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.

11 schools nearby View map →

Neighborhood Context

Walk Score
3 Car-Dependent
Bike Score
26 Somewhat Bikeable
City Safety
High (1,949/100K)

Powered by Walk Score

FBI UCR 2024. City-level (Casa Grande). Data >1 year old.

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
Data Year
2023–2024

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

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 methodology

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