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SCHOOL COMMUNITY·COBB COUNTY·NCES 130129000555

Brumby Elementary School

815 Terrell Mill Rd SE, Marietta, GA 30067 · (770) 916-7070 · Cobb County
GRADES PK–05ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL963 STUDENTS
D
allk12 Grade
Scored higher than 10% of Georgia public elementary schools
  • C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • FBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • BThree-year trend Change in reading and math proficiency over the last three test years.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Georgia public elementary schools

Enrollment
963
Elementary
DISTRICT 691 · STATE 605
Student : Teacher
10.8:1
89 FTE teachers
DISTRICT 12.0:1 · STATE 13.3:1
Free / Reduced Lunch
78%
754 students
DISTRICT 56% · STATE 74%
Community
6
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Pre-K162%
Kindergarten13214%
Grade 117218%
Grade 216717%
Grade 316617%
Grade 413914%
Grade 517118%

This year's kindergarten class (132) is 23% smaller than its 5th grade class (171).

Student demographics
61%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 73% · STATE 71% · US 70%
White
839%
DISTRICT 32% · STATE 34% · US 43%
Hispanic
27729%
DISTRICT 27% · STATE 19% · US 30%
Black
52254%
DISTRICT 29% · STATE 36% · US 15%
Asian
202%
DISTRICT 6% · STATE 5% · US 6%
Two+
566%
DISTRICT 6% · STATE 5% · US 5%
Native American
51%
DISTRICT 0% · STATE 0% · US 1%
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
52555%
Female
43845%

School pathway

Students here typically continue to
Brumby Elementary School→East Cobb Middle School→Wheeler High School
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
20.0%
GA avg 40.1% . +0.3pp since 2021
Math
21.6%
GA avg 44.6% . +7.1pp since 2021

What this means: On the Georgia Milestones, Georgia's statewide test, about 20 of every 100 students at this school read and write at grade level and about 22 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 7 points.

Georgia Milestones results by year

School yearEnglish Language ArtsMath
2024-2520.0%21.6%
2023-2425.4%24.8%
2022-2318.7%17.3%
2021-2219.7%14.5%
% 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
UNDERPERFORMING
Bottom 10% of GA schools after controlling for student poverty
Actual proficiency
22.4%
composite math + reading, all grades
Predicted
36.9%
based on GA schools with similar FRL share
Beats by
-14.5pp
below demographic expectation

What this means: About 22% of students here test proficient in math and reading, below the roughly 37% typical for Georgia schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.

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 Brumby Elementary School

Brumby Elementary School's state test result (22.4% proficient) is higher than 0 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Brumby Elementary School this school96378.3%22.4%
Pulaski Elementary SChool
Savannah
1,14778.8%28.7%
Norton Elementary School
Snellville
1,04281.2%32.2%
Lovin Elementary School
Lawrenceville
85672.4%48.7%
Rice Creek School
Port Wentworth
1,01174.6%26.1%
Southwest Elementary School
Savannah
76978.4%25.0%
Matched among Georgia elementary 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 Brumby Elementary School ranks

Among elementary schools
MeasureThis schoolIn GeorgiaIn Cobb County
State test proficiency
ranked highest first
22.4%#984 of 1,208#67 of 72
Math proficiency
ranked highest first
21.6%#1,030 of 1,215
▼ 81
#71 of 72
▼ 4
Reading proficiency
ranked highest first
20.0%#1,014 of 1,215
▼ 103
#68 of 72
▼ 6
3-year test score change
ranked biggest gain first
+3.7pp#483 of 1,183#22 of 72
Enrollment
ranked largest first
963#103 of 1,324#8 of 78
Students per teacher
ranked fewest first
10.8:1#96 of 1,301#21 of 77
Diversity index
ranked most diverse first
61.2%#435 of 1,301#36 of 77
Free and reduced lunch
ranked highest share first
78.3%#748 of 1,312#29 of 78
Enrollment change since 2017-18
ranked fastest growth first
+4.4%#285 of 386#12 of 18
Ranked against other public elementary 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
963
+88 (+10%) vs 2020
+30% since 1990-91, when it was 739
Student : Teacher
10.8:1
was 12.3:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2596389.210.8:178% (754)
2023-241,02682.112.5:179% (806)
2022-2397378.412.4:171% (686)
2020-218757112.3:167% (589)
2017-1892274.512.4:170% (641)
2015-161,0118112.5:178% (793)
2010-119958112.3:180% (796)
2000-018497012.1:150% (423)
1990-917393918.9:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Brumby Elementary School.

Since 2017-18: students up 4% (922 to 963); teachers up 20% (74.5 to 89.2).

About Brumby Elementary School

Brumby Elementary School is a high-enrollment elementary school in Cobb County, located in Marietta, Georgia. Enrolled students number 963 students, in pre-K through 5. Enrollment is 59% higher than the average for elementary schools in Georgia, which is about 605.

The district, Cobb County, operates 110 schools serving 105,738 students.

Black students are the majority at Brumby Elementary School, with 54% of enrollment. Enrollment also includes 29% Hispanic, 9% White, 6% multiracial, and 2% Asian. The school's Black share is 28 points above the 27% share among Cobb County residents. The school's diversity index is 61%, meaning two students picked at random have a 61% chance of belonging to different racial or ethnic groups.

With 89.2 full-time-equivalent teachers in 2024-25, the ratio at Brumby Elementary School was 10.8:1. This ratio sits 2.5 below the 13.3:1 average for elementary schools in Georgia. A measure often used for student poverty, free or reduced-price lunch eligibility, stands at 78%. The average for public schools in Cobb County is 53%.

The allk12 Grade for Brumby Elementary School is D. Compared with Georgia public elementary schools, the school scored higher than 10% on a mix of test scores, poverty-adjusted results, and recent trend.

Brumby Elementary School ranks in the bottom 10% of Georgia schools after adjusting test results for student poverty. Actual: 22.4%. Predicted: 36.9%. Difference: 14.5 points.

In the county around the school, Cobb County, the median household income is $102,738, about 51% of adults have at least a bachelor's degree, and the poverty rate is about 6%. Cobb County is home to 129 public schools and about 116,609 public school students.

The nearest other public school, East Cobb Middle School, is about 0.1 miles away. Inside a five-mile radius, there are at least 8 other public schools. On average proficiency, Brumby Elementary School is 7th of 7 nearby schools with test data.

On the NCES locale scale, the school is Suburb: Large.

Compared with 2020-21, the school had 88 more students in 2024-25. In 2020-21, the student-to-teacher ratio was 12.3:1; by 2024-25 it was 10.8:1.

Topics for discussion here include school events, clubs, and volunteer needs. Alumni can share how the school prepared them.

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
Brumby Elementary School
District
Cobb County
Address
815 Terrell Mill Rd SE, Marietta, GA 30067
Phone
(770) 916-7070
County
Cobb County
Level
Elementary
Grade range
PK–05
Total enrollment
963
Teachers (FTE)
89
Student–teacher ratio
10.8:1
Free and reduced lunch
754 (78%)
Locale
21-Suburb: Large
NCES ID
130129000555
Charter school
No
Virtual school
No

Related schools

Other schools in Cobb County
Other schools in Marietta
Nearby schools

Frequently asked questions

About Brumby Elementary School
How many students attend Brumby Elementary School?
Brumby Elementary School enrolls approximately 963 students in grades PK-05.
What grades does Brumby Elementary School serve?
Brumby Elementary School serves grades PK-05.
What is the student-teacher ratio at Brumby Elementary School?
The student-to-teacher ratio at Brumby Elementary School is approximately 10.8:1 (89 FTE teachers).
What is the racial breakdown of students at Brumby Elementary School?
At Brumby Elementary School, the student body is approximately 9% White, 29% Hispanic, 54% Black, 2% Asian, 6% Two or more.
Who oversees Brumby Elementary School?
Brumby Elementary 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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