For the 2025-26 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 42% 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 (2025-26)
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 | 2,685 students Student-teacher ratio: 19:1 Minority enrollment: 40%
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 | 1,758 student Student-teacher ratio: 17:1 Minority enrollment: 28%
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 | 1,949 student 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 | 2,170 students Student-teacher ratio: 19:1 Minority enrollment: 31%
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 | 2,290 students Student-teacher ratio: 18:1 Minority enrollment: 59%
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 | 1,642 student Student-teacher ratio: 18:1 Minority enrollment: 42%
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 | 1,666 student Student-teacher ratio: 16:1 Minority enrollment: 63%
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 | 728 students Student-teacher ratio: 14:1 Minority enrollment: 43%
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 | 2,380 students Student-teacher ratio: 17:1 Minority enrollment: 76%
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 | 1,582 student Student-teacher ratio: 17:1 Minority enrollment: 55%
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 | 1,799 student Student-teacher ratio: 17:1 Minority enrollment: 68%
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 | 2,521 students Student-teacher ratio: 18:1 Minority enrollment: 72%
Rank: #1313.
Campbell High School
(Math: 36% | Reading: 47%)
Rank:
Rank:
7/
Top 50%10
925 Powder Springs St
Smyrna, GA 30080
(678) 842-6850
Smyrna, GA 30080
(678) 842-6850
Gr: 9-12 | 3,030 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 | 2,654 students Student-teacher ratio: 16:1 Minority enrollment: 80%
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 | 464 students Student-teacher ratio: 10:1 Minority enrollment: 87%
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 | 2,137 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 | 2,300 students Student-teacher ratio: 18:1 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 | 1,027 student Student-teacher ratio: 13:1 Minority enrollment: 76%
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 | 2,773 students Student-teacher ratio: 16:1 Minority enrollment: 95%
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 | 64 students Student-teacher ratio: 4:1 Minority enrollment: 59%
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 | 605 students Student-teacher ratio: 28:1 Minority enrollment: 68%
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 | 14 students Student-teacher ratio: 3:1 Minority enrollment: 86%
Cobb County Public Schools (Closed)
School
Location
Quick Facts
Alternative Education Centerlanguage Academytran (Closed 2009)
Alternative School
1550 Pebblebrook Circle
Mableton, GA 30126
(770) 426-3300
Mableton, GA 30126
(770) 426-3300
Central Alternative School (Closed 2009)
Alternative School
1550 Pebblebrook Circle
Mableton, GA 30126
(770) 426-3300
Mableton, GA 30126
(770) 426-3300
Cobb-douglas Psychoeducational Program (Closed 2023)
Alternative School
1595 Hawthorne Ave Se
Smyrna, GA 30080
(770) 319-3751
Smyrna, GA 30080
(770) 319-3751
Fitzhugh Lee Transitional Learning Center (Closed 2009)
Alternative School
4400 South Atlanta Road
Smyrna, GA 30080
(770) 426-3300
Smyrna, GA 30080
(770) 426-3300
Haven Hawthorne Center (Closed 2023)
Special Education School
1595 Hawthorne Ave Se
Smyrna, GA 30080
(678) 842-6943
Smyrna, GA 30080
(678) 842-6943
6688 Mableton Parkway Se
Mableton, GA 30126
(678) 391-7710
Mableton, GA 30126
(678) 391-7710
Gr: K-8 | 609 students Student-teacher ratio: 20:1 Minority enrollment: 99%
Kennesaw Charter School (Closed 2023)
Charter School
3010 Cobb Pkwy Nw
Kennesaw, GA 30152
(678) 290-9628
Kennesaw, GA 30152
(678) 290-9628
Gr: K-5
Marietta Charter School (Closed 2012)
Charter School
377 Henry Dr Sw
Marietta, GA 30064
(770) 590-4430
Marietta, GA 30064
(770) 590-4430
Gr: K-5 | 220 students Student-teacher ratio: 17:1 Minority enrollment: 89%
Martha J. Moore Transitional Learning Center (Closed 2009)
Alternative School
6997 Keene Street
Mableton, GA 30126
(770) 426-3300
Mableton, GA 30126
(770) 426-3300
Nelson L. Price Treatment Center Of Gbch & Fm- Inc (Closed 2014)
Alternative School
729 Lawrence St Ne
Marietta, GA 30060
(770) 514-8255
Marietta, GA 30060
(770) 514-8255
Gr: 9-12 | 6 students Student-teacher ratio: 3:1 Minority enrollment: 67%
1560 Joyner Ave Se
Marietta, GA 30060
(678) 594-8240
Marietta, GA 30060
(678) 594-8240
Gr: 9-12 | 145 students Student-teacher ratio: 13:1 Minority enrollment: 71%
5805 Dunn Rd Sw
Mableton, GA 30126
(770) 819-2584
Mableton, GA 30126
(770) 819-2584
Gr: PK-5 | 396 students Student-teacher ratio: 11:1 Minority enrollment: 83%
Woods-wilkins Alternative Center Plc (Closed 2012)
Alternative School
350 Lemon St Ne
Marietta, GA 30060
(770) 429-3188
Marietta, GA 30060
(770) 429-3188
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: Allatoona High School vs. Harrison High School, Pope High School vs. Lassiter High School, North Cobb High School vs. Kennesaw Mountain High School
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