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SCHOOL COMMUNITY·COBB COUNTY·NCES 130129003795

Betty Gray Middle School

1550 Pebblebrook Cir SE, Mableton, GA 30126 · (770) 819-2414 · Cobb County
GRADES 06–08MIDDLE21-SUBURBTITLE IREGULAR SCHOOL702 STUDENTS
Enrollment
702
Middle
DISTRICT 921 · STATE 763
Student : Teacher
15.6:1
45 FTE teachers
DISTRICT 15.1:1 · STATE 14.1:1
Free / Reduced Lunch
99%
695 students
DISTRICT 56% · STATE 74%
Community
5
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 625436%
Grade 721831%
Grade 823033%
Student demographics
56%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 73% · STATE 71% · US 70%
White
274%
DISTRICT 32% · STATE 34% · US 43%
Hispanic
31044%
DISTRICT 27% · STATE 19% · US 30%
Black
34950%
DISTRICT 29% · STATE 36% · US 15%
Asian
30%
DISTRICT 6% · STATE 5% · US 6%
Two+
112%
DISTRICT 6% · STATE 5% · US 5%
Native American
10%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
10%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
35851%
Female
34449%

School pathway

Students here typically continue to
Betty Gray Middle School→Pebblebrook High School
Feeds from
City View Elementary SchoolPK–05
Based on published attendance-zone data from Cobb County. Zones change; confirm enrollment with the district.

Discussions

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Test scores

Georgia Milestones 2024-25 . % Proficient or Distinguished
English Language Arts
27.8%
GA avg 40.1% . +0.9pp since 2021
Math
30.8%
GA avg 44.6% . +5.6pp since 2021

What this means: On the Georgia Milestones, Georgia's statewide test, about 28 of every 100 students at this school read and write at grade level and about 31 of 100 do math at grade level. Across all Georgia schools, those numbers are about 40 and 45. Reading and writing scores have held steady since 2021, while math scores are up about 6 points.

Georgia Milestones results by year

School yearEnglish Language ArtsMath
2024-2527.8%30.8%
2023-2428.4%28.8%
2022-2326.3%24.2%
2021-2226.9%25.2%
% Proficient or Distinguished, all students and all tested grades.
Source: Georgia Milestones. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
33.3%
composite math + reading, all grades
Predicted
26.2%
based on GA schools with similar FRL share
Beats by
+7.0pp
above demographic expectation

What this means: About 33% of students here test proficient in math and reading, compared with the roughly 26% typical for Georgia schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Georgia's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Betty Gray Middle School

Betty Gray Middle School's state test result (33.3% proficient) is higher than 4 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Betty Gray Middle School this school70299.0%33.3%
Forest Park Middle School
Marrow
593100.0%15.0%
Garrett Middle School
Austell
891100.0%30.6%
Paul D. West Middle School
East Point
814100.0%22.9%
Lindley Middle School
Mableton
905100.0%31.4%
Burney-Harris-Lyons Middle School
Athens
707100.0%40.2%
Matched among Georgia middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Betty Gray Middle School ranks

Among middle schools
MeasureThis schoolIn GeorgiaIn Cobb County
State test proficiency
ranked highest first
33.3%#285 of 470#24 of 28
Math proficiency
ranked highest first
30.8%#307 of 474
▼ 2
#25 of 28
▼ 1
Reading proficiency
ranked highest first
27.8%#334 of 474
▲ 15
#25 of 28
▲ 2
3-year test score change
ranked biggest gain first
+3.2pp#282 of 465#17 of 28
Enrollment
ranked largest first
702#266 of 487#24 of 28
Students per teacher
ranked fewest first
15.6:1#362 of 471#17 of 28
Diversity index
ranked most diverse first
55.6%#245 of 471#23 of 28
Free and reduced lunch
ranked highest share first
99.0%#154 of 479#6 of 28
Enrollment change since 2017-18
ranked fastest growth first
+19.8%#34 of 144N/A
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
702
+100 (+17%) vs 2020
+45% since 2010-11, when it was 484
Student : Teacher
15.6:1
was 15.8:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-257024515.6:199% (695)
2023-2468647.114.6:187% (595)
2022-2352139.613.2:185% (441)
2020-216023815.8:178% (467)
2017-185862920.2:188% (513)
2015-165213315.8:187% (451)
2010-114843414.2:185% (410)
Source: NCES Common Core of Data. Rows are the federal collections on file for Betty Gray Middle School.

Since 2017-18: students up 20% (586 to 702); teachers up 55% (29 to 45).

About Betty Gray Middle School

As a mid-sized middle school, Betty Gray Middle School serves students in Mableton, Georgia. The school teaches grades 6 through 8 and enrolls 702 students.

In Cobb County, 110 schools enroll a combined 105,738 students.

The largest racial or ethnic group at Betty Gray Middle School is Black, with 50% of students. Other groups include 44% Hispanic and 4% White. The county population is about 27% Black. On a 0 to 100 scale, the school's diversity index is 56, compared with 70 nationally.

A staff of 45 full-time-equivalent teachers puts the student-to-teacher ratio at 15.6:1. The average for middle schools in Georgia, 14.1:1, is lower. The share of students eligible for free or reduced-price lunch is 99%. Across public schools in Cobb County, the average is 53%.

On BeatsExpectations, Betty Gray Middle School is 7.0 points above its prediction, a result in the middle 80% of Georgia schools.

In Cobb County, the median household earns about $102,738 a year, about 51% of adults have at least a bachelor's degree, and roughly 6% of residents are in poverty. Cobb County has 129 public schools with about 116,609 students, including Betty Gray Middle School.

Nickajack Elementary School is the nearest public school to Betty Gray Middle School, about 1.8 miles away. Other public schools within five miles number at least 8. Betty Gray Middle School comes in 4th of 9 nearby schools on average proficiency.

For locale, NCES codes Betty Gray Middle School as Suburb: Large.

The school grew from 602 students in 2020-21 to 702 in 2024-25.

Parents, students, and staff can share information on pickup and drop-off, after-school programs, and teacher feedback here. Members of the school community can share what they know.

Cobb County at a glance

View full county profile
Population
775,208
Census ACS
Median income
$102,738
Household, ACS
Bachelor's+
51%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
129
116,609 students

Quick facts

School name
Betty Gray Middle School
District
Cobb County
Address
1550 Pebblebrook Cir SE, Mableton, GA 30126
Phone
(770) 819-2414
County
Cobb County
Level
Middle
Grade range
06–08
Total enrollment
702
Teachers (FTE)
45
Student–teacher ratio
15.6:1
Free and reduced lunch
695 (99%)
Locale
21-Suburb: Large
NCES ID
130129003795
Charter school
No
Virtual school
No

Related schools

Other schools in Cobb County
Other schools in Mableton
Nearby schools

Frequently asked questions

About Betty Gray Middle School
How many students attend Betty Gray Middle School?
Betty Gray Middle School enrolls approximately 702 students in grades 06-08.
Is Betty Gray Middle School an elementary, middle, or high school?
Betty Gray Middle School is a middle school covering grades 06-08.
What is the student-teacher ratio at Betty Gray Middle School?
The student-to-teacher ratio at Betty Gray Middle School is approximately 15.6:1 (45 FTE teachers).
What is the racial breakdown of students at Betty Gray Middle School?
At Betty Gray Middle School, the student body is approximately 4% White, 44% Hispanic, 50% Black, 0% Asian, 2% Two or more.
Who oversees Betty Gray Middle School?
Betty Gray Middle School is overseen by Cobb County in Cobb County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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