Best middle schools in Cobb County (2025)
Schools classified as middle schools by NCES. Ranked by the Success Index (US) from official American data; 26 schools in Cobb County, Georgia. Rank positions shown on each profile are within United States and Georgia.
- 189Hightower Trail Middle SchoolMarietta · Public Middle89% Math proficiency · 944 students
- 289Dodgen Middle SchoolMarietta · Public Middle89% Math proficiency · 1,178 students
- 387Dickerson Middle SchoolMarietta · Public Middle89% Math proficiency · 1,225 students
- 484Simpson Middle SchoolMarietta · Public Middle75% Math proficiency · 884 students
- 583Mabry Middle SchoolMarietta · Public Middle77% Math proficiency · 938 students
- 683Lost Mountain Middle SchoolKennesaw · Public Middle76% Math proficiency · 979 students
- 781Durham Middle SchoolAcworth · Public Middle72% Math proficiency · 984 students
- 877McClure Middle SchoolKennesaw · Public Middle70% Math proficiency · 1,030 students
- 975Lovinggood Middle SchoolPowder Springs · Public Middle67% Math proficiency · 1,209 students
- 1067McCleskey Middle SchoolMarietta · Public Middle53% Math proficiency · 540 students
- 1163Awtrey Middle SchoolKennesaw · Public Middle49% Math proficiency · 593 students
- 1262Palmer Middle SchoolKennesaw · Public Middle62% Math proficiency · 803 students
- 1360Pine Mountain Middle SchoolKennesaw · Public Middle52% Math proficiency · 506 students
- 1457Daniell Middle SchoolMarietta · Public Middle51% Math proficiency · 884 students
- 1557Barber Middle SchoolAcworth · Public Middle52% Math proficiency · 790 students
- 1641Griffin Middle SchoolSmyrna · Public Middle38% Math proficiency · 991 students
- 1741Tapp Middle SchoolPowder Springs · Public Middle44% Math proficiency · 809 students
- 1841East Cobb Middle SchoolMarietta · Public Middle44% Math proficiency · 1,352 students
- 1936Cooper Middle SchoolAustell · Public Middle42% Math proficiency · 1,000 students
- 2034Campbell Middle SchoolSmyrna · Public Middle31% Math proficiency · 1,368 students
- 2129Smitha Middle SchoolMarietta · Public Middle33% Math proficiency · 866 students
- 2226Pearson Middle SchoolMarietta · Public Middle100% Free/reduced-price lunch · 806 students
- 2323Betty Gray Middle SchoolMableton · Public Middle32% Math proficiency · 702 students
- 2422Floyd Middle SchoolMableton · Public Middle27% Math proficiency · 776 students
- 2521Lindley Middle SchoolMableton · Public Middle26% Math proficiency · 905 students
- 2618Garrett Middle SchoolAustell · Public Middle26% Math proficiency · 891 students
| # | School | Sector | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|
| 1 | Hightower Trail Middle School Marietta · Middle · Grades 6–8 | Public | 88.9 Top 5% | 89% Math proficiency | 944 |
| 2 | Dodgen Middle School Marietta · Middle · Grades 6–8 | Public | 88.6 Top 5% | 89% Math proficiency | 1,178 |
| 3 | Dickerson Middle School Marietta · Middle · Grades 6–8 | Public | 86.8 Top 5% | 89% Math proficiency | 1,225 |
| 4 | Simpson Middle School Marietta · Middle · Grades 6–8 | Public | 83.7 Top 10% | 75% Math proficiency | 884 |
| 5 | Mabry Middle School Marietta · Middle · Grades 6–8 | Public | 83.3 Top 10% | 77% Math proficiency | 938 |
| 6 | Lost Mountain Middle School Kennesaw · Middle · Grades 6–8 | Public | 83.0 Top 10% | 76% Math proficiency | 979 |
| 7 | Durham Middle School Acworth · Middle · Grades 6–8 | Public | 81.2 Top 10% | 72% Math proficiency | 984 |
| 8 | McClure Middle School Kennesaw · Middle · Grades 6–8 | Public | 77.2 Top 25% | 70% Math proficiency | 1,030 |
| 9 | Lovinggood Middle School Powder Springs · Middle · Grades 6–8 | Public | 74.8 Top 25% | 67% Math proficiency | 1,209 |
| 10 | McCleskey Middle School Marietta · Middle · Grades 6–8 | Public | 67.0 Top 50% | 53% Math proficiency | 540 |
| 11 | Awtrey Middle School Kennesaw · Middle · Grades 6–8 | Public | 62.5 Top 50% | 49% Math proficiency | 593 |
| 12 | Palmer Middle School Kennesaw · Middle · Grades 6–8 | Public | 61.6 Top 50% | 62% Math proficiency | 803 |
| 13 | Pine Mountain Middle School Kennesaw · Middle · Grades 6–8 | Public | 60.0 Top 50% | 52% Math proficiency | 506 |
| 14 | Daniell Middle School Marietta · Middle · Grades 6–8 | Public | 57.1 Top 50% | 51% Math proficiency | 884 |
| 15 | Barber Middle School Acworth · Middle · Grades 6–8 | Public | 57.0 Top 50% | 52% Math proficiency | 790 |
| 16 | Griffin Middle School Smyrna · Middle · Grades 6–8 | Public | 41.2 Lower 50% | 38% Math proficiency | 991 |
| 17 | Tapp Middle School Powder Springs · Middle · Grades 6–8 | Public | 41.2 Lower 50% | 44% Math proficiency | 809 |
| 18 | East Cobb Middle School Marietta · Middle · Grades 6–8 | Public | 41.0 Lower 50% | 44% Math proficiency | 1,352 |
| 19 | Cooper Middle School Austell · Middle · Grades 6–8 | Public | 36.3 Lower 50% | 42% Math proficiency | 1,000 |
| 20 | Campbell Middle School Smyrna · Middle · Grades 6–8 | Public | 33.7 Lower 50% | 31% Math proficiency | 1,368 |
| 21 | Smitha Middle School Marietta · Middle · Grades 6–8 | Public | 29.2 Lower 50% | 33% Math proficiency | 866 |
| 22 | Pearson Middle School Marietta · Middle · Grades 6–8 | Public | 26.1 Lower 50% | 100% Free/reduced-price lunch | 806 |
| 23 | Betty Gray Middle School Mableton · Middle · Grades 6–8 | Public | 23.2 Lower 50% | 32% Math proficiency | 702 |
| 24 | Floyd Middle School Mableton · Middle · Grades 6–8 | Public | 21.8 Lower 50% | 27% Math proficiency | 776 |
| 25 | Lindley Middle School Mableton · Middle · Grades 6–8 | Public | 20.6 Lower 50% | 26% Math proficiency | 905 |
| 26 | Garrett Middle School Austell · Middle · Grades 6–8 | Public | 18.2 Lower 50% | 26% Math proficiency | 891 |
Hightower Trail Middle School in Marietta leads the 2025 list of middle schools in Cobb County with a Success Index (US) of 88.9. Of the 26 schools shown, 26 are public.
For the full picture see the wider Georgia middle schools rankings, every school on the Cobb County page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best middle school in Cobb County?
Hightower Trail Middle School in Marietta, Georgia ranks first among middle schools in Cobb County with a Success Index (US) of 88.9 out of 100 (Enrollment: 944).
How are middle schools in Cobb County ranked?
Each school's Success Index (US) combines 4 factors: math proficiency (30%), reading proficiency (30%), community advantage (fewer free/reduced-price lunch) (25%), students per teacher (15%). Each factor is a percentile against schools of the same type across United States. Schools with fewer than 60 students are excluded from rankings.
Are these 2025 rankings official?
No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.