| School name | Has library | Students per teacher | Grades |
|
| CARMAN ADVENTIST SCHOOL ,MARIETTA,GA |  | 13.88 | K-8 |
| CASA DEL BAMBINI ,MARIETTA,GA | | | - |
| COBB COUNTY CHRISTIAN SCHOOLS ,MARIETTA,GA | | 8.33 | PK-12 |
| COVENANT CHRISTIAN MINISTRIES ,MARIETTA,GA | | 12.45 | PK-12 |
| DOMINION CHRISTIAN HIGH SCHOOL ,MARIETTA,GA | | 15.93 | 9-12 |
| EAST COBB CHRISTIAN SCHOOL ,MARIETTA,GA | | 8.15 | K-8 |
| EASTSIDE CHRISTIAN SCHOOL ,MARIETTA,GA | | 12.42 | K-8 |
| FAITH LUTHERAN SCHOOL ,MARIETTA,GA | | 9.27 | PK-8 |
| IN HIS IMAGE CHRISTIAN ACADEMY ,MARIETTA,GA | | 5.83 | K-12 |
| MOUNT BETHEL CHRISTIAN ACADEMY ,MARIETTA,GA | | | - |
| NOBLE WORLD MONTESSORI SCHOOL ,MARIETTA,GA | | 12.67 | PK-2 |
| NOONDAY ACADEMY (NOONDAY IS ON ,MARIETTA,GA | | 9.87 | PK-4 |
| PATHWAYS ACADEMY, THE ,MARIETTA,GA | | 8.09 | 1-5 |
| ROSWELL STREET BAPTIST CHRISTI ,MARIETTA,GA | | | PK-8 |
| SHREINER ACADEMY ,MARIETTA,GA | | 4.93 | PK-8 |
| ST JOSEPH ELEMENTARY SCHOOL ,MARIETTA,GA | | 16.52 | K-8 |
| THE SWIFT SCHOOL ,MARIETTA,GA | | 4.42 | 1-5 |
| THE WALKER SCHOOL ,MARIETTA,GA | | 8.26 | PK-12 |
| WOOD ACRES COUNTRY DAY SCH ,MARIETTA,GA | | 13.16 | PK-5 |
|
| City Marietta average (#19) | 78.95% | 09.98 | |
| State Georgia average(#579) | 82.56% | 10.28 | |
| National average (#28861) | 78.66% | 12.07 | |