Cobb County schools ranked by test score
Latest Georgia Milestones year (2024-25). 116 schools in Cobb County, Georgia with reported Science scores. Georgia state average: 40.7%.
| Rank | School | Level | Science | vs state |
|---|---|---|---|---|
| 1 | Marietta Center for Advanced Academics Marietta · Marietta City | Elementary | 87.2% | +46.5pp |
| 2 | Pope High School Marietta · Cobb County | High | 86.9% | +46.2pp |
| 3 | Walton High School Marietta · Cobb County | High | 85.4% | +44.7pp |
| 4 | Kell High School Marietta · Cobb County | High | 83.1% | +42.4pp |
| 5 | Timber Ridge Elementary School Marietta · Cobb County | Elementary | 82.8% | +42.1pp |
| 6 | North Cobb High School Kennesaw · Cobb County | High | 82.0% | +41.3pp |
| 7 | Tritt Elementary School Marietta · Cobb County | Elementary | 81.6% | +40.9pp |
| 8 | Mount Bethel Elementary School Marietta · Cobb County | Elementary | 80.6% | +39.9pp |
| 9 | Lassiter High School Marietta · Cobb County | High | 80.1% | +39.4pp |
| 10 | Kennesaw Mountain High School Kennesaw · Cobb County | High | 79.7% | +39.0pp |
| 11 | West Side Elementary School Marietta · Marietta City | Elementary | 78.1% | +37.4pp |
| 12 | Murdock Elementary School Marietta · Cobb County | Elementary | 78.0% | +37.3pp |
| 13 | Harrison High School Kennesaw · Cobb County | High | 76.8% | +36.1pp |
| 14 | Sope Creek Elementary School Marietta · Cobb County | Elementary | 75.3% | +34.6pp |
| 15 | Mountain View Elementary School Marietta · Cobb County | Elementary | 74.7% | +34.0pp |
| 16 | East Side Elementary School Marietta · Cobb County | Elementary | 72.1% | +31.4pp |
| 17 | Campbell High School Smyrna · Cobb County | High | 69.7% | +29.0pp |
| 18 | Shallowford Falls Elementary School Marietta · Cobb County | Elementary | 67.6% | +26.9pp |
| 19 | Hillgrove High School Powder Springs · Cobb County | High | 66.8% | +26.1pp |
| 20 | Due West Elementary School Marietta · Cobb County | Elementary | 66.1% | +25.4pp |
| 21 | Ford Elementary School Acworth · Cobb County | Elementary | 65.7% | +25.0pp |
| 22 | A.L. Burruss Elementary School Marietta · Marietta City | Elementary | 65.6% | +24.9pp |
| 23 | Frey Elementary School Acworth · Cobb County | Elementary | 65.3% | +24.6pp |
| 24 | Garrison Mill Elementary School Marietta · Cobb County | Elementary | 65.1% | +24.4pp |
| 25 | Pickett's Mill Elementary School Acworth · Cobb County | Elementary | 62.9% | +22.2pp |
| 26 | McClure Middle School Kennesaw · Cobb County | Middle | 62.6% | +21.9pp |
| 27 | Vaughan Elementary School Powder Springs · Cobb County | Elementary | 61.6% | +20.9pp |
| 28 | King Springs Elementary School Smyrna · Cobb County | Elementary | 60.8% | +20.1pp |
| 29 | Allatoona High School Acworth · Cobb County | High | 60.0% | +19.3pp |
| 30 | Dickerson Middle School Marietta · Cobb County | Middle | 59.0% | +18.3pp |
| 31 | Rocky Mount Elementary School Marietta · Cobb County | Elementary | 58.9% | +18.2pp |
| 32 | Kemp Elementary School Powder Springs · Cobb County | Elementary | 58.6% | +17.9pp |
| 33 | Kincaid Elementary School Marietta · Cobb County | Elementary | 57.8% | +17.1pp |
| 34 | Nicholson Elementary School Marietta · Cobb County | Elementary | 57.0% | +16.3pp |
| 35 | Lovinggood Middle School Powder Springs · Cobb County | Middle | 56.2% | +15.5pp |
| 36 | Addison Elementary School Marietta · Cobb County | Elementary | 55.2% | +14.5pp |
| 37 | Dodgen Middle School Marietta · Cobb County | Middle | 54.4% | +13.7pp |
| 38 | Hightower Trail Middle School Marietta · Cobb County | Middle | 53.0% | +12.3pp |
| 39 | Mabry Middle School Marietta · Cobb County | Middle | 53.0% | +12.3pp |
| 40 | Bullard Elementary School Kennesaw · Cobb County | Elementary | 52.5% | +11.8pp |
| 41 | Dunleith Elementary School Marietta · Marietta City | Elementary | 52.1% | +11.4pp |
| 42 | Cooper Middle School Austell · Cobb County | Middle | 50.9% | +10.2pp |
| 43 | Lost Mountain Middle School Kennesaw · Cobb County | Middle | 49.1% | +8.4pp |
| 44 | Eastvalley Elementary School Marietta · Cobb County | Elementary | 47.9% | +7.2pp |
| 45 | Simpson Middle School Marietta · Cobb County | Middle | 46.2% | +5.5pp |
| 46 | Still Elementary School Powder Springs · Cobb County | Elementary | 45.9% | +5.2pp |
| 47 | Hayes Elementary School Kennesaw · Cobb County | Elementary | 45.2% | +4.5pp |
| 48 | Cheatham Hill Elementary School Marietta · Cobb County | Elementary | 43.9% | +3.2pp |
| 49 | Davis Elementary School Marietta · Cobb County | Elementary | 43.8% | +3.1pp |
| 50 | Big Shanty Elementary School Kennesaw · Cobb County | Elementary | 43.2% | +2.5pp |
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 Science 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.