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Average

#884 of 2,268 schools in GA

Top 39% in state

Kell High School

High School · Cobb County

4770 Lee Waters Rd, Marietta, GA 30066

Enrollment

1,582

Student-Teacher

17.6:1

Score

6.9

Grades

9th – 12th

Data vintage2022-23

How this school compares

Georgia schools

#884 of 2,268

In Marietta

#38 of 58

public schools

In district

#65 of 110

Cobb County

Equity

8.3 / 10

Excellent

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Kell High School

6.9/10

High School in Marietta · grades 9th – 12th. Start here, then compare fit against nearby and district options.

Nicholson Elementary School

7.8/10

1.0 mi away. Use as a geographic alternative in the same move search.

Keheley Elementary School

7.2/10

1.1 mi away. Use as a geographic alternative in the same move search.

About Kell High School

Kell High School is a public high school in Marietta, GA, part of Cobb County. Kell High School serves approximately 1,582 students, and covers grades 9th-12th, and has a 17.6:1 student-teacher ratio. Kell High School has a current MySchoolScout rating of 6.9 out of 10 and ranks #884 of 2,268 schools in GA.

Structured state assessment records for Kell High School show 55% math proficiency (multi-year average, 2009-2024) and 65% reading/ELA proficiency (multi-year average, 2009-2024).

How it comparesOn par with district
  • This school 6.9 · Average
  • District avg 6.7
  • GA avg 6.1

Score Breakdown

Full Profile · 4/4 metrics
Student Progress8.1Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data15
Annual Change-3.3 pts/yr
Data Period2009–2024
TrendDeclining
Academics8.0Excellent25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency50.3% (2024 GA)
Reading/ELA Proficiency60.5% (2024 GA)
Math vs. State Avg+8.2 pts
Reading vs. State Avg+18.7 pts
Overall Proficiency55% (2024 GA, Math+ELA)
Expected (poverty-adj.)54% (model expectation from 2024 GA)
vs. Expected+1.3 pts
Adjusted Percentile70th
College Readiness7.4Very Good30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate89%
AP Participation28.6%
IB ProgramNo
Resources & Environment3.4Needs Improvement20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio17.6:1
Per-Pupil Spending$14,680
Chronic Absenteeism25.9%

Kell High School — Students at Kell High School score 55% proficient, which is above what's typical for similar communities (expected: 54%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

43.7%

Students qualifying for federal meal assistance

Test Scores GA GA (2023-24)

Math Proficiency 54.5% (multi-year average, 2009-2024)
School
State
42.1% (2024 GA)
ELA Proficiency 65.0% (multi-year average, 2009-2024)
School
State
41.8% (2024 GA)

Based on 30 test records from GA state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
82%
ELA
93%
2010
Math
93%
ELA
95%
2011
Math
66%
ELA
95%
2012
Math
84%
ELA
94%
2013
Math
46%
ELA
95%
2014
Math
51%
ELA
48%
2015
Math
52%
ELA
60%
2016
Math
53%
ELA
51%
2017
Math
49%
ELA
59%
2018
Math
45%
ELA
63%
2019
Math
45%
ELA
63%
2020*
Math
28%
ELA
21%
2021*
Math
28%
ELA
21%
2022
Math
45%
ELA
56%
2024
Math
50.3%
ELA
60.5%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 8.1/10.

How Kell High School Compares

See how Kell High School performs across key quality dimensions compared to state benchmarks.

Overall Score
6.9/10
61th percentile in GA
Academic
8.0/10
Excellent
Growth
8.1/10
Excellent
Environment
3.4/10
Needs Improvement
AP Courses
4
State avg: 3
Sports
23
11 boys' · 12 girls'
Advanced STEM
5/5
Subjects offered
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
44%
Teaching Staff
18:1 student-teacher ratio
90 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
25.9%

Programs & Offerings

AP/IB Programs4 AP courses offered
28.6% participation·State avg: 3 AP courses·CRDC 2021-22
Athletics23sports offered
11 boys'·12 girls'·31 teams (incl. JV)·CRDC 2021-22
Advanced STEM Courses5 of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC 2021-22
Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

4770 Lee Waters Rd, Marietta, GA 30066

Nearby Alternatives

Families considering Kell High School may also want to explore other high schools in the area. Lassiter High School (rated 8.2/10, 2.7 miles away), which scores notably higher. Additionally, Woodstock High School (rated 7.0/10, 3.0 miles away, in nearby Woodstock), with a very similar rating. For more schools in Marietta, see our Marietta schools guide .

Nearby Schools

20 within 3.4 mi
School Distance Rating
Nicholson Elementary School Marietta 1.0 mi 7.8
Keheley Elementary School Marietta 1.1 mi 7.2
McCleskey Middle School Marietta 1.3 mi 7.9
THE GARDEN SCHOOL Marietta 1.5 mi 7.0
MONTESSORI SCHOOL OF WOODSTOCK Marietta 1.6 mi
Blackwell Elementary School Marietta 2.1 mi 6.6
Davis Elementary School Marietta 2.0 mi 8.7
Rocky Mount Elementary School Marietta 2.3 mi 8.9
SHILOH HILLS CHRISTIAN SCHOOL Kennesaw 2.2 mi 9.0
Mabry Middle School Marietta 2.5 mi 8.6
Addison Elementary School Marietta 3.0 mi 8.6
Lassiter High School Marietta 2.7 mi 8.2
Woodstock Middle School Woodstock 2.9 mi 6.4
Woodstock Elementary School Woodstock 3.1 mi 7.2
Daniell Middle School Marietta 3.1 mi 6.3
Woodstock High School Woodstock 3.0 mi 7.0
Simpson Middle School Marietta 3.0 mi 8.3
GRACEPOINT SCHOOL Marietta 3.5 mi 7.2
Chalker Elementary School Kennesaw 3.1 mi 6.9
Mountain View Elementary School Marietta 3.4 mi 9.5

Neighborhood Census ACS (2019-2023)

Census data for ZIP 30066 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$112,067

Median Home Value

$373,500

Median Rent

$1,760/mo

Population

60,961

College Educated

53.1%

Homeownership

75.9%

Avg Commute

28.5 min

Poverty Rate

6.9%

Median Age

38.5

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Calhoun High School Calhoun, GA 6.9
Cook High School Adel, GA 6.9
Gilmer High School Ellijay, GA 6.9
LaFayette High School La Fayette, GA 6.9
Loganville High School Loganville, GA 6.9
Riverwood International Charter School Atlanta, GA 6.9

Frequently Asked Questions

Common questions about Kell High School

What grades does Kell High School serve?

Kell High School serves students in grades 9th through 12th.

How many students attend Kell High School?

Kell High School has an enrollment of approximately 1,582 students.

What is the student-teacher ratio at Kell High School?

The student-teacher ratio at Kell High School is 17.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Kell High School rank in GA?

Kell High School ranks #884 of 2,268 schools in GA.

What is Kell High School's MySchoolScout rating?

Kell High School has a current MySchoolScout rating of 6.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Kell High School?

Based on loaded state assessment records, Kell High School has 55% math proficiency (multi-year average, 2009-2024) and 65% reading/ELA proficiency (multi-year average, 2009-2024).

Is Kell High School a charter school?

No, Kell High School is not a charter school. It is a traditional public school operated by the local school district.

Is Kell High School a Title I school?

No, Kell High School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Kell High School?

43.7% of students at Kell High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
19 Car-Dependent
Bike Score
21 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
9th – 12th
Enrollment
1,582
Student-Teacher Ratio
17.6:1
Teachers (FTE)
90
Free/Reduced Lunch
43.7%
Type
regular
Setting
Large Suburb
County
Cobb County
Chronic Absenteeism (SY 2022-23)
25.9%
4-Year Graduation
89.0%

District

Cobb County
District Enrollment
106,358
Schools in District
110
Per-Pupil Spending
$14,680
District Rank
#65 of 110

How we rate schools

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