Serving 122 students in grades Kindergarten-6, Mary C O'brien Elementary School ranks in the top 5% of all schools in Arizona for overall test scores (math proficiency is top 5%, and reading proficiency is top 5%).
The percentage of students achieving proficiency in math is 70-74% (which is higher than the Arizona state average of 35%). The percentage of students achieving proficiency in reading/language arts is 75-79% (which is higher than the Arizona state average of 40%).
The student:teacher ratio of 9:1 is lower than the Arizona state level of 17:1.
Minority enrollment is 70% of the student body (majority Hispanic), which is higher than the Arizona state average of 66% (majority Hispanic).
Quick Stats (2025)
Grades: Kindergarten-6
Enrollment: 122 students
Student:Teacher Ratio: 9:1
Minority Enrollment: 70%
Overall Testing Rank
: Top 5% in AZ
Math Proficiency
: 70-74% (Top 5%)
Reading Proficiency
: 75-79% (Top 5%)
Science Proficiency
: ≤20% (Btm 50%)
Source: National Center for Education Statistics (NCES), AZ Dept. of Education
Mary C O'brien Elementary School ranks within the top 5% of all 1,956 schools in Arizona (based off of combined math and reading proficiency testing data).
The diversity score of Mary C O'brien Elementary School is 0.62, which is less than the diversity score at state average of 0.66. The school's diversity has stayed relatively flat over five school years.
What percent of students have achieved state testing proficiency in math and reading?
70-74% of students have achieved math proficiency (compared to the 35% AZ state average), while 75-79% of students have achieved reading proficiency (compared to the 40% AZ state average).
How many students attend Mary C O'brien Elementary School?
122 students attend Mary C O'brien Elementary School.
What is the racial composition of the student body?
53% of Mary C O'brien Elementary School students are Hispanic, 30% of students are White, 12% of students are Two or more races, 3% of students are Hawaiian, and 2% of students are Black.
What is the student:teacher ratio of Mary C O'brien Elementary School?
Mary C O'brien Elementary School has a student ration of 9:1, which is lower than the Arizona state average of 17:1.
What grades does Mary C O'brien Elementary School offer ?
Mary C O'brien Elementary School offers enrollment in grades Kindergarten-6
What school district is Mary C O'brien Elementary School part of?
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Quick Stats (2025)
Grades: Kindergarten-6
Enrollment: 122 students
Student:Teacher Ratio: 9:1
Minority Enrollment: 70%
Overall Testing Rank
: Top 5%
Math Proficiency
: 70-74% (Top 5%)
Reading Proficiency
: 75-79% (Top 5%)
Science Proficiency
: ≤20% (Btm 50%)
Source: National Center for Education Statistics (NCES), AZ Dept. of Education
