For the 2026 school year, there are 24 public high schools serving 40,816 students in Cobb County, GA. The top-ranked public high schools in Cobb County, GA are Walton High School, Pope High School and Lassiter High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Cobb County, GA public high schools have an average math proficiency score of 44% (versus the Georgia public high school average of 35%), and reading proficiency score of 53% (versus the 43% statewide average). High schools in Cobb County have an average ranking of 9/10, which is in the top 20% of Georgia public high schools.
Cobb County, GA public high school have a Graduation Rate of 87%, which is more than the Georgia average of 85%.
The school with highest graduation rate is Lassiter High School, with 98% graduation rate. Read more about public school graduation rate statistics in Georgia or national school graduation rate statistics.
Minority enrollment is 68% of the student body (majority Black), which is more than the Georgia public high school average of 65% (majority Black).
Best Public High Schools in Cobb County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Walton High School
Charter School
(Math: 80% | Reading: 89%)
Rank:
Rank:
10/
Top 5%10
1590 Bill Murdock Rd
Marietta, GA 30062
(770) 578-3225
Marietta, GA 30062
(770) 578-3225
Gr: 9-12 | 2,705 students Student-teacher ratio: 19:1 Minority enrollment: 42%
Rank: #22.
Pope High School
(Math: 80% | Reading: 79%)
Rank:
Rank:
10/
Top 5%10
3001 Hembree Rd Ne
Marietta, GA 30062
(770) 578-7900
Marietta, GA 30062
(770) 578-7900
Gr: 9-12 | 1,793 student Student-teacher ratio: 17:1 Minority enrollment: 29%
Rank: #33.
Lassiter High School
(Math: 73% | Reading: 78%)
Rank:
Rank:
10/
Top 5%10
2601 Shallowford Rd
Marietta, GA 30066
(678) 494-7863
Marietta, GA 30066
(678) 494-7863
Gr: 9-12 | 2,005 students Student-teacher ratio: 18:1 Minority enrollment: 33%
Rank: #44.
Harrison High School
(Math: 69% | Reading: 80%)
Rank:
Rank:
10/
Top 5%10
4500 Due West Rd Nw
Kennesaw, GA 30152
(678) 594-8104
Kennesaw, GA 30152
(678) 594-8104
Gr: 9-12 | 2,224 students Student-teacher ratio: 19:1 Minority enrollment: 33%
Rank: #55.
Hillgrove High School
(Math: 63% | Reading: 66%)
Rank:
Rank:
10/
Top 10%10
4165 Luther Ward Rd
Powder Springs, GA 30127
(678) 331-3961
Powder Springs, GA 30127
(678) 331-3961
Gr: 9-12 | 2,282 students Student-teacher ratio: 18:1 Minority enrollment: 61%
Rank: #66.
Allatoona High School
(Math: 55% | Reading: 60%)
Rank:
Rank:
9/
Top 20%10
3300 Dallas Acworth Hwy Nw
Acworth, GA 30101
(770) 975-6503
Acworth, GA 30101
(770) 975-6503
Gr: 9-12 | 1,560 student Student-teacher ratio: 16:1 Minority enrollment: 43%
Rank: #77.
Kennesaw Mountain High School
(Math: 52% | Reading: 57%)
Rank:
Rank:
9/
Top 20%10
1898 Kennesaw Due West Rd Nw
Kennesaw, GA 30152
(678) 594-8190
Kennesaw, GA 30152
(678) 594-8190
Gr: 9-12 | 1,695 student Student-teacher ratio: 16:1 Minority enrollment: 67%
Rank: #88.
Northwest Classical Academy
Charter School
(Math: 51% | Reading: 51%)
Rank:
Rank:
8/
Top 30%10
3010 Cobb Parkway North
Kennesaw, GA 30152
(470) 502-9700
Kennesaw, GA 30152
(470) 502-9700
Gr: K-12 | 798 students Student-teacher ratio: 13:1 Minority enrollment: 42%
Rank: #99.
Wheeler High School
(Math: 51% | Reading: 50%)
Rank:
Rank:
8/
Top 30%10
375 Holt Rd Ne
Marietta, GA 30068
(770) 578-3266
Marietta, GA 30068
(770) 578-3266
Gr: 9-12 | 2,401 students Student-teacher ratio: 16:1 Minority enrollment: 77%
Rank: #1010.
Kell High School
(Math: 46% | Reading: 56%)
Rank:
Rank:
8/
Top 30%10
4770 Lee Waters Rd
Marietta, GA 30066
(678) 494-7844
Marietta, GA 30066
(678) 494-7844
Gr: 9-12 | 1,587 student Student-teacher ratio: 17:1 Minority enrollment: 57%
Rank: #1111.
Sprayberry High School
(Math: 47% | Reading: 52%)
Rank:
Rank:
8/
Top 30%10
2525 Sandy Plains Rd
Marietta, GA 30066
(770) 578-3200
Marietta, GA 30066
(770) 578-3200
Gr: 9-12 | 1,769 student Student-teacher ratio: 17:1 Minority enrollment: 70%
Rank: #1212.
North Cobb High School
(Math: 49% | Reading: 45%)
Rank:
Rank:
8/
Top 30%10
3400 Old 41 Hwy Nw
Kennesaw, GA 30144
(770) 975-6685
Kennesaw, GA 30144
(770) 975-6685
Gr: 9-12 | 2,463 students Student-teacher ratio: 17:1 Minority enrollment: 73%
Rank: #1313.
Campbell High School
(Math: 36% | Reading: 47%)
Rank:
Rank:
7/
Top 50%10
925 Powder Springs St Se
Smyrna, GA 30080
(678) 842-6850
Smyrna, GA 30080
(678) 842-6850
Gr: 9-12 | 3,085 students Student-teacher ratio: 18:1 Minority enrollment: 82%
Rank: #1414.
Marietta High School
(Math: 37% | Reading: 44%)
Rank:
Rank:
7/
Top 50%10
1171 Whitlock Ave Sw
Marietta, GA 30064
(770) 428-2631
Marietta, GA 30064
(770) 428-2631
Gr: 9-12 | 2,526 students Student-teacher ratio: 14:1 Minority enrollment: 79%
Rank: #1515.
Fulton Academy Of Virtual Excellence
(Math: 24% | Reading: 48%)
Rank:
Rank:
6/
Top 50%10
6151 Powers Ferry Road Nw
Atlanta, GA 30339
(470) 254-4578
Atlanta, GA 30339
(470) 254-4578
Gr: 2-12 | 393 students Student-teacher ratio: 11:1 Minority enrollment: 86%
Rank: #1616.
South Cobb High School
(Math: 26% | Reading: 39%)
Rank:
Rank:
5/
Bottom 50%10
1920 Clay Rd
Austell, GA 30106
(770) 819-2611
Austell, GA 30106
(770) 819-2611
Gr: 9-12 | 2,081 students Student-teacher ratio: 16:1 Minority enrollment: 94%
Rank: #1717.
Mceachern High School
(Math: 29% | Reading: 36%)
Rank:
Rank:
5/
Bottom 50%10
2400 New Macland Rd
Powder Springs, GA 30127
(770) 222-3710
Powder Springs, GA 30127
(770) 222-3710
Gr: 9-12 | 2,175 students Student-teacher ratio: 17:1 Minority enrollment: 94%
Rank: #1818.
Pebblebrook High School
(Math: 33% | Reading: 29%)
Rank:
Rank:
5/
Bottom 50%10
991 Old Alabama Rd Sw
Mableton, GA 30126
(770) 819-2521
Mableton, GA 30126
(770) 819-2521
Gr: 9-12 | 2,574 students Student-teacher ratio: 17:1 Minority enrollment: 96%
Rank: #1919.
Cobb Horizon High School
(Math: 20% | Reading: 36%)
Rank:
Rank:
4/
Bottom 50%10
1765 The Exchange Se
Atlanta, GA 30339
(678) 594-8240
Atlanta, GA 30339
(678) 594-8240
Gr: 6-12 | 927 students Student-teacher ratio: 13:1 Minority enrollment: 77%
Rank: #2020.
Osborne High School
(Math: 15% | Reading: 27%)
Rank:
Rank:
3/
Bottom 50%10
2451 Favor Rd Sw
Marietta, GA 30060
(770) 437-5900
Marietta, GA 30060
(770) 437-5900
Gr: 9-12 | 2,790 students Student-teacher ratio: 16:1 Minority enrollment: 96%
Rank: #2121.
Devereux Ackerman Academy
(Math: ≤10% | Reading: ≤20%)
Rank:
Rank:
1/
Bottom 50%10
1291 Stanley Rd Nw
Kennesaw, GA 30152
(770) 427-0147
Kennesaw, GA 30152
(770) 427-0147
Gr: K-12 | 54 students Student-teacher ratio: 4:1 Minority enrollment: 70%
Rank: n/an/a
Destinations Career Academy Of Georgia (Virtual)
Charter School
1700 Water Pl Se
Atlanta, GA 30339
(855) 572-1486
Atlanta, GA 30339
(855) 572-1486
Gr: 6-9 | 587 students Student-teacher ratio: 27:1 Minority enrollment: 66%
Rank: n/an/a
729 Lawrence St Ne
Marietta, GA 30060
(770) 971-7801
Marietta, GA 30060
(770) 971-7801
Gr: 6-12 | 4 students Student-teacher ratio: 4:1 Minority enrollment: 75%
Rank: n/an/a
Marietta Regional Youth Detention Center
Alternative School
1575 County Services Pkwy Sw
Marietta, GA 30008
(770) 528-4247
Marietta, GA 30008
(770) 528-4247
Gr: 5-12 | 18 students Student-teacher ratio: 5:1 Minority enrollment: 84%
Frequently Asked Questions
What are the top-ranked public high schools in Cobb County, GA?
The top-ranked public high schools in Cobb County, GA include Walton High School, Pope High School and Lassiter High School. Cobb County has one of the highest concentrations of top-ranked public schools in Georgia.
How many public high schools are located in Cobb County?
24 public high schools are located in Cobb County.
What is the racial composition of students in Cobb County?
Cobb County public high schools minority enrollment is 68% of the student body (majority Black), which is more than the Georgia public high schools average of 65% (majority Black).
Which public high schools in Cobb County are often viewed compared to one another?
Popular comparisons of public high schools in Cobb County include: Pope High School vs. Lassiter High School, Allatoona High School vs. Harrison High School, North Cobb High School vs. Kennesaw Mountain High School
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.