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) · Casa Grande, AZ
A Mary C O'brien Accommodation District (4435) elementary school where students score 37 points above what's typical for similar communities.
PO BOX 3125, Casa Grande, AZ 85122
- Math 72% proficient (2022)
- Reading 77% proficient (2022)
- 9.4:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
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Students at Mary C O'brien Elementary School score 74% proficient, which is above what's typical for similar communities (expected: 37%).
2022 EdFacts proficiency
Most recent published year. School vs. AZ average.
Trend
↓ DecliningProficiency has fallen 5 points since 2019, to 75% in 2022, across a 14-year record (2009–2022).
Show all 14 years
Multi-year averages used by the rating model: math 71% (multi-year average, 2009-2022) · reading/ELA 80% (multi-year average, 2009-2022)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 28 test records from AZ state assessments and EdFacts (NCES).
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Mary C O'brien Elementary School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Phoenix map →
Getting around & local context
- Walk 11Car-Dependent
- Bike 26Somewhat Bikeable
- City Safety: High1,949/100K
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FBI Uniform Crime Reporting · 2024 · city context (Casa Grande), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$64,243
Median home value
$242,500
Median rent
$1,289/mo
College educated
19.4%
Homeownership
69.2%
Poverty rate
14.9%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 85122; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
0 from verified nearby records
No verified same-level alternatives
The available nearby set has no same-level school with a verified grade span.
Mary C O'brien Accommodation District (4435)
- Schools in district
- 2
- Rank in district
- #1 of 2
- District spending per student
- $27,922NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- The source release did not match this district identifier.
Mary C O'brien Elementary School is listed in Mary C O'Brien Accommodation District (4435); a district label does not verify attendance for an address.
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), serving approximately 122 students in grades Kindergarten-6th with a 9.4:1 student-teacher ratio. It holds a MySchoolScout rating of 9.7 out of 10 and ranks #6 of 2,006 schools in AZ. State assessment records show 71% math proficiency (multi-year average, 2009-2022) and 80% reading/ELA proficiency (multi-year average, 2009-2022).
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.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- 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
- Area population (ZIP 85122)
- 58,328
- Area average commute
- 23.4 min
- Area median age
- 36.4
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 85122; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2022; directory SY 2023–24
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