Cobb County schools ranked by test score
Latest Georgia Milestones year (2024-25). 118 schools in Cobb County, Georgia with reported Mathematics scores. Georgia state average: 44.6%.
| Rank | School | Level | Mathematics | vs state |
|---|---|---|---|---|
| 1 | Marietta Center for Advanced Academics Marietta · Marietta City | Elementary | 97.4% | +52.8pp |
| 2 | Dickerson Middle School Marietta · Cobb County | Middle | 91.0% | +46.4pp |
| 3 | West Side Elementary School Marietta · Marietta City | Elementary | 87.0% | +42.4pp |
| 4 | Mount Bethel Elementary School Marietta · Cobb County | Elementary | 84.2% | +39.7pp |
| 5 | Sope Creek Elementary School Marietta · Cobb County | Elementary | 84.0% | +39.4pp |
| 6 | Tritt Elementary School Marietta · Cobb County | Elementary | 83.0% | +38.4pp |
| 7 | Timber Ridge Elementary School Marietta · Cobb County | Elementary | 82.8% | +38.2pp |
| 8 | Murdock Elementary School Marietta · Cobb County | Elementary | 81.9% | +37.3pp |
| 9 | Dodgen Middle School Marietta · Cobb County | Middle | 81.7% | +37.1pp |
| 10 | East Side Elementary School Marietta · Cobb County | Elementary | 81.0% | +36.4pp |
| 11 | Due West Elementary School Marietta · Cobb County | Elementary | 81.0% | +36.4pp |
| 12 | Hightower Trail Middle School Marietta · Cobb County | Middle | 79.2% | +34.6pp |
| 13 | Mountain View Elementary School Marietta · Cobb County | Elementary | 78.5% | +33.9pp |
| 14 | Mabry Middle School Marietta · Cobb County | Middle | 76.2% | +31.6pp |
| 15 | Davis Elementary School Marietta · Cobb County | Elementary | 74.8% | +30.2pp |
| 16 | Lost Mountain Middle School Kennesaw · Cobb County | Middle | 74.5% | +30.0pp |
| 17 | Lassiter High School Marietta · Cobb County | High | 72.1% | +27.5pp |
| 18 | Simpson Middle School Marietta · Cobb County | Middle | 71.2% | +26.6pp |
| 19 | Harrison High School Kennesaw · Cobb County | High | 71.0% | +26.4pp |
| 20 | Walton High School Marietta · Cobb County | High | 70.7% | +26.1pp |
| 21 | Garrison Mill Elementary School Marietta · Cobb County | Elementary | 69.8% | +25.2pp |
| 22 | Kemp Elementary School Powder Springs · Cobb County | Elementary | 69.1% | +24.5pp |
| 23 | Shallowford Falls Elementary School Marietta · Cobb County | Elementary | 69.0% | +24.4pp |
| 24 | Addison Elementary School Marietta · Cobb County | Elementary | 68.3% | +23.7pp |
| 25 | McClure Middle School Kennesaw · Cobb County | Middle | 68.3% | +23.7pp |
| 26 | Pickett's Mill Elementary School Acworth · Cobb County | Elementary | 66.7% | +22.1pp |
| 27 | Hillgrove High School Powder Springs · Cobb County | High | 66.6% | +22.0pp |
| 28 | Vaughan Elementary School Powder Springs · Cobb County | Elementary | 66.3% | +21.7pp |
| 29 | Kincaid Elementary School Marietta · Cobb County | Elementary | 66.0% | +21.4pp |
| 30 | Kennesaw Mountain High School Kennesaw · Cobb County | High | 65.6% | +21.0pp |
| 31 | Pope High School Marietta · Cobb County | High | 64.5% | +19.9pp |
| 32 | Lovinggood Middle School Powder Springs · Cobb County | Middle | 64.5% | +19.9pp |
| 33 | King Springs Elementary School Smyrna · Cobb County | Elementary | 64.5% | +19.9pp |
| 34 | Durham Middle School Acworth · Cobb County | Middle | 63.9% | +19.3pp |
| 35 | Ford Elementary School Acworth · Cobb County | Elementary | 62.9% | +18.4pp |
| 36 | Rocky Mount Elementary School Marietta · Cobb County | Elementary | 62.6% | +18.1pp |
| 37 | Frey Elementary School Acworth · Cobb County | Elementary | 62.4% | +17.8pp |
| 38 | Kell High School Marietta · Cobb County | High | 59.6% | +15.0pp |
| 39 | Allatoona High School Acworth · Cobb County | High | 58.9% | +14.3pp |
| 40 | Lewis Elementary School Kennesaw · Cobb County | Elementary | 57.9% | +13.3pp |
| 41 | Bullard Elementary School Kennesaw · Cobb County | Elementary | 57.5% | +13.0pp |
| 42 | Eastvalley Elementary School Marietta · Cobb County | Elementary | 57.4% | +12.8pp |
| 43 | McCleskey Middle School Marietta · Cobb County | Middle | 56.8% | +12.2pp |
| 44 | Still Elementary School Powder Springs · Cobb County | Elementary | 56.7% | +12.1pp |
| 45 | Dunleith Elementary School Marietta · Marietta City | Elementary | 54.9% | +10.3pp |
| 46 | Cheatham Hill Elementary School Marietta · Cobb County | Elementary | 54.3% | +9.7pp |
| 47 | A.L. Burruss Elementary School Marietta · Marietta City | Elementary | 54.0% | +9.4pp |
| 48 | Big Shanty Elementary School Kennesaw · Cobb County | Elementary | 51.6% | +7.1pp |
| 49 | North Cobb High School Kennesaw · Cobb County | High | 51.0% | +6.4pp |
| 50 | Pine Mountain Middle School Kennesaw · Cobb County | Middle | 50.6% | +6.0pp |
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 Mathematics 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.