Cobb County schools ranked by test score
Latest Georgia Milestones year (2024-25). 28 schools in Cobb County, Georgia with reported Social Studies scores. Georgia state average: 39.4%.
| Rank | School | Level | Social Studies | vs state |
|---|---|---|---|---|
| 1 | Dickerson Middle School Marietta · Cobb County | Middle | 76.7% | +37.3pp |
| 2 | Dodgen Middle School Marietta · Cobb County | Middle | 76.3% | +36.9pp |
| 3 | Lost Mountain Middle School Kennesaw · Cobb County | Middle | 73.9% | +34.5pp |
| 4 | Durham Middle School Acworth · Cobb County | Middle | 73.1% | +33.7pp |
| 5 | Simpson Middle School Marietta · Cobb County | Middle | 69.8% | +30.4pp |
| 6 | Mabry Middle School Marietta · Cobb County | Middle | 69.3% | +29.9pp |
| 7 | Lovinggood Middle School Powder Springs · Cobb County | Middle | 66.9% | +27.5pp |
| 8 | Hightower Trail Middle School Marietta · Cobb County | Middle | 66.3% | +26.9pp |
| 9 | McClure Middle School Kennesaw · Cobb County | Middle | 65.2% | +25.8pp |
| 10 | Cooper Middle School Austell · Cobb County | Middle | 57.7% | +18.3pp |
| 11 | Pine Mountain Middle School Kennesaw · Cobb County | Middle | 52.3% | +12.9pp |
| 12 | Griffin Middle School Smyrna · Cobb County | Middle | 51.7% | +12.3pp |
| 13 | Awtrey Middle School Kennesaw · Cobb County | Middle | 51.6% | +12.2pp |
| 14 | McCleskey Middle School Marietta · Cobb County | Middle | 50.3% | +10.9pp |
| 15 | Daniell Middle School Marietta · Cobb County | Middle | 48.3% | +8.9pp |
| 16 | Marietta Middle School Marietta · Marietta City | Middle | 43.3% | +3.9pp |
| 17 | Tapp Middle School Powder Springs · Cobb County | Middle | 37.9% | -1.5pp |
| 18 | Betty Gray Middle School Mableton · Cobb County | Middle | 33.4% | -6.0pp |
| 19 | Palmer Middle School Kennesaw · Cobb County | Middle | 32.9% | -6.5pp |
| 20 | Lindley Middle School Mableton · Cobb County | Middle | 31.4% | -8.0pp |
| 21 | Campbell Middle School Smyrna · Cobb County | Middle | 29.2% | -10.2pp |
| 22 | East Cobb Middle School Marietta · Cobb County | Middle | 27.5% | -11.9pp |
| 23 | Floyd Middle School Mableton · Cobb County | Middle | 27.2% | -12.2pp |
| 24 | Barber Middle School Acworth · Cobb County | Middle | 24.5% | -14.9pp |
| 25 | Cobb Horizon High School Atlanta · Cobb County | High | 18.8% | -20.6pp |
| 26 | Smitha Middle School Marietta · Cobb County | Middle | 16.6% | -22.8pp |
| 27 | Pearson Middle School Marietta · Cobb County | Middle | 16.4% | -23.0pp |
| 28 | Garrett Middle School Austell · Cobb County | Middle | 16.3% | -23.1pp |
About this ranking
Schools are ranked by the percentage of students who scored at or above the Georgia Milestones % Proficient or Distinguished threshold on the latest available Georgia Milestones Social Studies test (school year 2024-25). Only public schools in Cobb County, Georgia with a reasonable cohort size are shown. A higher percentage is better.
The comparison column shows the gap to the Georgia statewide enrollment-weighted average. To compare against neighboring counties, use the full Georgia ranking.