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SCHOOL COMMUNITY·COBB COUNTY·NCES 130129002110

Timber Ridge Elementary School

5000 Timber Ridge Rd, Marietta, GA 30068 · (770) 642-5621 · Cobb County
GRADES PK–05ELEMENTARY21-SUBURBREGULAR SCHOOL529 STUDENTS
Enrollment
529
Elementary
DISTRICT 691 · STATE 605
Student : Teacher
13.4:1
40 FTE teachers
DISTRICT 12.0:1 · STATE 13.3:1
Free / Reduced Lunch
8%
40 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-K71%
Kindergarten9618%
Grade 16112%
Grade 28917%
Grade 38416%
Grade 49117%
Grade 510119%

This year's kindergarten class (96) is about the same size as its 5th grade class (101).

Student demographics
55%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 73% · STATE 71% · US 70%
White
33964%
DISTRICT 32% · STATE 34% · US 43%
Hispanic
509%
DISTRICT 27% · STATE 19% · US 30%
Black
346%
DISTRICT 29% · STATE 36% · US 15%
Asian
7614%
DISTRICT 6% · STATE 5% · US 6%
Two+
306%
DISTRICT 6% · STATE 5% · US 5%
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
25548%
Female
27452%

Discussions

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Test scores

Georgia Milestones 2024-25 . % Proficient or Distinguished
English Language Arts
80.2%
GA avg 40.1% . -6.7pp since 2021
Math
82.8%
GA avg 44.6% . -4.5pp since 2021

What this means: On the Georgia Milestones, Georgia's statewide test, about 80 of every 100 students at this school read and write at grade level and about 83 of 100 do math at grade level. Across all Georgia schools, those numbers are about 40 and 45. Reading and writing scores are down about 7 points since 2021, while math scores are down about 5 points.

Georgia Milestones results by year

School yearEnglish Language ArtsMath
2024-2580.2%82.8%
2023-2487.8%87.1%
2022-2387.1%88.3%
2021-2286.9%87.3%
% 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
84.1%
composite math + reading, all grades
Predicted
73.4%
based on GA schools with similar FRL share
Beats by
+10.7pp
above demographic expectation

What this means: About 84% of students here test proficient in math and reading, compared with the roughly 73% 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 Timber Ridge Elementary School

Timber Ridge Elementary School's state test result (84.1% proficient) is higher than 5 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Timber Ridge Elementary School this school5297.6%84.1%
Crabapple Crossing Elementary School
Alpharetta
6286.1%79.2%
Garrison Mill Elementary School
Marietta
64911.7%69.1%
Shallowford Falls Elementary School
Marietta
59114.7%69.1%
Davis Elementary School
Marietta
63512.8%66.3%
Alpharetta Elementary School
Alpharetta
49817.9%78.1%
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 Timber Ridge Elementary School ranks

Among elementary schools
MeasureThis schoolIn GeorgiaIn Cobb County
State test proficiency
ranked highest first
84.1%#10 of 1,208#2 of 72
Math proficiency
ranked highest first
82.8%#33 of 1,215
▼ 18
#6 of 72
▼ 3
Reading proficiency
ranked highest first
80.2%#12 of 1,215
▼ 9
#3 of 72
▼ 1
3-year test score change
ranked biggest drop first
-5.6pp#110 of 1,183#10 of 72
Enrollment
ranked largest first
529#791 of 1,324#57 of 78
Students per teacher
ranked fewest first
13.4:1#639 of 1,301#64 of 77
Diversity index
ranked most diverse first
55.2%#645 of 1,301#58 of 77
Free and reduced lunch
ranked highest share first
7.6%#1,300 of 1,312#77 of 78
Enrollment change since 2017-18
ranked steepest decline first
-7.4%#626 of 854#48 of 57
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
529
+43 (+9%) vs 2020
-20% since 1990-91, when it was 660
Student : Teacher
13.4:1
was 11.3:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2552939.613.4:18% (40)
2023-2451039.612.9:16% (31)
2022-2350538.913.0:14% (19)
2020-214864311.3:13% (16)
2017-1857142.513.4:12% (11)
2015-166064214.4:12% (12)
2010-115804213.8:14% (22)
2000-016124114.9:10% (3)
1990-916603717.8:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Timber Ridge Elementary School.

Since 2017-18: students down 7% (571 to 529); teachers down 7% (42.5 to 39.6).

About Timber Ridge Elementary School

Timber Ridge Elementary School is a mid-sized elementary school based in Marietta, Georgia. Its enrollment is 529 students, spread over pre-K through 5.

Timber Ridge Elementary School belongs to Cobb County, a district of 110 schools and 105,738 students.

More than half of enrollment at Timber Ridge Elementary School is White: 64%. Other groups include 14% Asian, 9% Hispanic, 6% Black, and 6% multiracial. The county population is about 49% White. On the diversity index, which measures the chance that two random students are from different groups, Timber Ridge Elementary School scores 55%.

Based on 39.6 full-time-equivalent teachers, Timber Ridge Elementary School has a ratio of 13.4:1. The 13.3:1 average for elementary schools in Georgia is close to this figure. Eligibility for free or reduced-price lunch stands at 8%. The average for public schools in Cobb County is 53%.

In Georgia, Timber Ridge Elementary School is in the middle band of BeatsExpectations: 84.1% actual against a predicted 73.4%.

In the wider Cobb County area, median household income comes to about $102,738, 51% of adults hold a bachelor's degree or higher, and about 6% of people live in poverty. Cobb County's 129 public schools enroll about 116,609 students and include Timber Ridge Elementary School.

A public school about 1.3 miles away, Mount Bethel Elementary School, is the closest to Timber Ridge Elementary School. Inside a five-mile radius, there are at least 8 other public schools. The school's 84.1% average proficiency ranks 1st among 8 nearby schools.

Under the NCES locale system, Timber Ridge Elementary School is Suburb: Large.

From 2020-21 to 2024-25, enrollment rose from 486 to 529, a 9% gain. Staffing shifted too: the ratio moved from 11.3:1 to 13.4:1.

The Timber Ridge Elementary School discussion page is a place for homework, tutoring, and testing dates. Teachers and staff are welcome to share updates too.

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
Timber Ridge Elementary School
District
Cobb County
Address
5000 Timber Ridge Rd, Marietta, GA 30068
Phone
(770) 642-5621
County
Cobb County
Level
Elementary
Grade range
PK–05
Total enrollment
529
Teachers (FTE)
40
Student–teacher ratio
13.4:1
Free and reduced lunch
40 (8%)
Locale
21-Suburb: Large
NCES ID
130129002110
Charter school
No
Virtual school
No

Related schools

Other schools in Cobb County
Other schools in Marietta
Other Timber Ridge Elementary schools

5 other US public schools in 5 states are named Timber Ridge Elementary. Timber Ridge Elementary School is the 6th largest of the 6.

Nearby schools

Frequently asked questions

About Timber Ridge Elementary School
How many students attend Timber Ridge Elementary School?
Timber Ridge Elementary School enrolls approximately 529 students in grades PK-05.
What grades does Timber Ridge Elementary School serve?
Timber Ridge Elementary School serves grades PK-05.
What is the student-teacher ratio at Timber Ridge Elementary School?
The student-to-teacher ratio at Timber Ridge Elementary School is approximately 13.4:1 (40 FTE teachers).
What is the student diversity at Timber Ridge Elementary School?
Student demographics at Timber Ridge Elementary School are roughly 64% White, 9% Hispanic, 6% Black, 14% Asian, 6% Two or more.
Is Timber Ridge Elementary School public or private?
Timber Ridge Elementary School is a public K-12 school, overseen by Cobb County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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