Mary C O'Brien Elementary School
🇺🇸 Official data · 2025Casa Grande, Arizona 85194 · Mary C O'Brien Accommodation District (4435)
#14 of 1,136 elementary schools in Arizona
#1330 of 50,301 nationally
About Mary C O'Brien Elementary School
Mary C O'Brien Elementary School is a public elementary located in Casa Grande, in the Mary C O'Brien Accommodation District (4435) school district of Arizona, United States. It caters for Grades K–6. In 2025 it enrolled 123 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 87.9 out of 100, placing it in the top 5% of elementary schools in United States and 14th of 1,136 ranked elementary schools in Arizona. Its strongest component is math proficiency (94th percentile), and its weakest is students per teacher (67th percentile).
Other published figures: enrollment 123.
There are 21 schools in Casa Grande; Mary C O'Brien Elementary School ranks 1st of 20 scored schools there.
Success Index (US) breakdown
Each component is a percentile against elementary schools across United States.
- Math proficiency (30%)82%
- Reading proficiency (30%)77%
- Community advantage (fewer free/reduced-price lunch) (25%)–
- Students per teacher (15%)10.3
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Mary C O'Brien Elementary School by the official sources.
- Enrollment
- 123
- Students enrolled in the latest NCES directory year.
- Students per teacher
- 10.3
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 77%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 82%
- Share of tested students proficient or above (all students, all grades).
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Schools near Mary C O'Brien Elementary School
Closest schools by straight-line distance, with their Success Index (US).
West Elementary School
Coolidge · Public elementary · Grades PK–6
604 students · 9.8 km away
Heartland Ranch Elementary School
Coolidge · Public elementary · Grades K–6
545 students · 10 km away
Coolidge High School
Coolidge · Public high · Grades 9–12
752 students · 11 km away
Coolidge Jr. High School
Coolidge · Public middle · Grades 6–8
688 students · 11 km away
Imagine Prep Coolidge
Coolidge · Charter high · Grades 6–12
472 students · 11 km away
Imagine Coolidge Elementary
Coolidge · Charter elementary · Grades K–5
645 students · 11 km away
Toltec Elementary School
Eloy · Public other · Grades PK–12
480 students · 13 km away
Vista Grande High School
Casa Grande · Public high · Grades 9–12
1,943 students · 14 km away
Desert Willow Elementary School
Casa Grande · Public elementary · Grades PK–8
505 students · 14 km away
Mesquite Elementary School
Casa Grande · Public elementary · Grades PK–8
439 students · 14 km away
Similar schools
Public elementary schools in Arizona with a comparable Enrollment.
Aguila Elementary School
Aguila · Public elementary · Grades K–8
124 students
Ash Fork Elementary School
Ash Fork · Public elementary · Grades PK–5
124 students
Congress Elementary School
Congress · Public elementary · Grades PK–8
122 students
Patagonia Elementary School
Patagonia · Public elementary · Grades PK–8
124 students
Red Mesa Elementary School
Teec Nos Pos · Public elementary · Grades PK–8
124 students
Paul Dunbar Lawrence School
Phoenix · Public elementary · Grades PK–8
125 students
Frequently asked questions
Is Mary C O'Brien Elementary School a good school?
Mary C O'Brien Elementary School has a Success Index (US) of 87.9 out of 100 (Top 5% of elementary schools in United States) and ranks #14 of 1,136 in Arizona. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Mary C O'Brien Elementary School rank in Arizona?
Mary C O'Brien Elementary School ranks #14 of 1,136 elementary schools in Arizona and #1330 of 50,301 nationally on the Success Index (US) (2025 data).
How many students attend Mary C O'Brien Elementary School?
Mary C O'Brien Elementary School had 123 students in 2025.
Is Mary C O'Brien Elementary School a elementary school or a high school?
Mary C O'Brien Elementary School is classified as a elementary covering Grades K–6. It is a public school.
What other schools are near Mary C O'Brien Elementary School?
There are 10 schools within 15 km of Mary C O'Brien Elementary School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.