Mary C O'Brien Elementary School (Mary C O'Brien Accommodation District (4435) SCH DIST.), Arizona - School Profile in 2023-2024 School Year

Updated on August 8, 2025.

Mary C O'Brien Elementary School is a Elementary in CASA GRANDE, AZ. It currently serves 122 students (grades KG-06). The school is part of the Mary C O'Brien Accommodation District (4435) School District.

Below, we provide details about the school including the population per grade, the racial demography of the student population, the racial demography of the student population per gender/sex, and the racial demography per grade level.

You can see similar information for other schools in Mary C O'Brien Accommodation District (4435) School District and all schools in Arizona.

Other Details

School Type: Regular School
School Level: Elementary
Number of Students:122
Number of Teachers: 14
Student/Teacher Ratio: 9.03

Location Info

Location: 1400 N ELEVEN MILE CORNER RD, CASA GRANDE, AZ 85194
Mailing Address: PO BOX 3125, CASA GRANDE, AZ 85122-0366
Phone: (520)450-4400
Data Source: NCES.
Student Population Per Grade
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Grade Population
Grade 1 20
Grade 2 14
Grade 3 18
Grade 4 17
Grade 5 18
Grade 6 15
Kindergarten 20
Gender/Sex of Mary C O'Brien Elementary School Student Population
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Gender Population Percent of Population (%)
Male 58 47.54
Female 64 52.46
Race/Ethnicity Demography of Mary C O'Brien Elementary School Student Population
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Race/Ethnicity Population Percent of Population (%)
Black or African American 3 2.46
Hispanic/Latino 65 53.28
Native Hawaiian or Other Pacific Islander 4 3.28
Two or more races 14 11.48
White 36 29.51
Male - Race/Ethnicity Demography of Student Population
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Race/Ethnicity Population Percent of Population (%)
Black or African American 2 3.45
Hispanic/Latino 29 50.00
Native Hawaiian or Other Pacific Islander 1 1.72
Two or more races 6 10.35
White 20 34.48
Female - Race/Ethnicity Demography of Student Population
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Race/Ethnicity Population Percent of Population (%)
Black or African American 1 1.56
Hispanic/Latino 36 56.25
Native Hawaiian or Other Pacific Islander 3 4.69
Two or more races 8 12.50
White 16 25.00

Race Demography Per Grade

The tables below shows the Race/Ethnicity of the student population per grade.
Grade 1 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
Black or African American 2 10.00
Hispanic/Latino 13 65.00
Native Hawaiian or Other Pacific Islander 1 5.00
Two or more races 1 5.00
White 3 15.00
Grade 2 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
Hispanic/Latino 7 50.00
Two or more races 2 14.29
White 5 35.71
Grade 3 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
Hispanic/Latino 8 44.44
Native Hawaiian or Other Pacific Islander 1 5.56
Two or more races 3 16.67
White 6 33.33
Grade 4 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
Hispanic/Latino 11 64.71
Two or more races 2 11.77
White 4 23.53
Grade 5 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
Hispanic/Latino 9 50.00
Native Hawaiian or Other Pacific Islander 1 5.56
Two or more races 1 5.56
White 7 38.89
Grade 6 - Race/Ethnicity of Both Genders
Items per page:
0 of 0
Race/Ethnicity Population Percent of Population (%)
Hispanic/Latino 7 46.67
Native Hawaiian or Other Pacific Islander 1 6.67
Two or more races 3 20.00
White 4 26.67
Kindergarten - Race/Ethnicity of Both Genders
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0 of 0
Race/Ethnicity Population Percent of Population (%)
Black or African American 1 5.00
Hispanic/Latino 10 50.00
Two or more races 2 10.00
White 7 35.00