Top Rankings
Mary C O'brien Accommodation District (4435) ranks among the top 20% of public school district in Arizona for:
Category
Attribute
Overall Rank
Highest overall rank (Top 10%)
Math Proficiency
Highest math proficiency (Top 5%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 10%)
Student Attention
Lowest student-teacher ratio (Top 1%)
For the 2026 school year, there is 1 public elementary school serving 123 students in Mary C O'brien Accommodation District (4435). This district's average elementary testing ranking is 10/10, which is in the top 5% of public elementary schools in Arizona.
Public Elementary School in Mary C O'brien Accommodation District (4435) have an average math proficiency score of 77% (versus the Arizona public elementary school average of 35%), and reading proficiency score of 77% (versus the 40% statewide average).
Minority enrollment is 63% of the student body (majority Hispanic), which is less than the Arizona public elementary school average of 67% (majority Hispanic).
Overview
This School District
This State (AZ)
# Schools
2 Schools
1,649 Schools
# Students
198 Students
756,988 Students
# Teachers
24 Teachers
44,240 Teachers
Student-Teacher Ratio
8:1
8:1
Student By Grade
District Rank
Mary C O'brien Accommodation District (4435), which is ranked within the top 10% of all 601 school districts in Arizona (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 30% has increased from 11-19% over five school years.
Overall District Rank
#37 out of 618 school districts
(Top 10%)
(Top 10%)
Math Test Scores (% Proficient)
77%
34%
Reading/Language Arts Test Scores (% Proficient)
65-69%
40%
Science Test Scores (% Proficient)
≤10%
24%
Graduation Rate
30%
77%
Chronically Absent Students
(2022-23)59.7%
41.2%
Students by Ethnicity:
Diversity Score
0.50
0.66
% American Indian
3%
5%
% Asian
n/a
3%
% Hispanic
66%
48%
% Black
n/a
6%
% White
26%
33%
% Hawaiian
n/a
n/a
% Two or more races
5%
5%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $28,904 is higher than the state median of $11,558. The school district revenue/student has grown by 8% over four school years.
The school district's spending/student of $28,374 is higher than the state median of $11,459. The school district spending/student has grown by 11% over four school years.
Total Revenue
$6 MM
$12,837 MM
Spending
$6 MM
$12,727 MM
Revenue / Student
$28,904
$11,558
Spending / Student
$28,374
$11,459
Best Mary C O'brien Accommodation District (4435) Public Elementary Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Mary C O'brien Elementary School
(Math: 75-79% | Reading: 75-79%)
Rank:
Rank:
10/
Top 5%10
1400 N Eleven Mile Corner Rd
Casa Grande, AZ 85122
(520) 450-4400
Casa Grande, AZ 85122
(520) 450-4400
Gr: K-6 | 123 students Student-teacher ratio: 9:1 Minority enrollment: 63%
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