| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Cobb County School District | Marietta | 9/10 Excellent · 83rd pct | 106,703 | 110 | PK–12 | 18 |
| Marietta City School District | Marietta | 9/10 Excellent · 80th pct | 8,711 | 13 | PK–12 | 1 |
How Cobb County compares
Together they enroll 115,414 students across 123 schools. The largest is Cobb County School District with 106,703 students. Districts here average 9.0/10, above the Georgia average of 5.5/10. Ratings range from 9/10 to 9/10.
School Districts in Cobb County, Georgia
Cobb County has 2 public school districts covering 19 zip codes. The top-rated district in Cobb County is Cobb County School District (9/10). Ratings are based on the share of students proficient in reading and math on state assessments (Georgia Milestones 2024–25), ranked against all districts in Georgia. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.
Frequently Asked Questions
How many school districts are in Cobb County, GA?
2 school districts serve zip codes in Cobb County, GA. This page lists each one with its rating, enrollment, grade span and the zip codes it covers.
What is the best-rated school district in Cobb County, GA?
Of the districts serving Cobb County, Cobb County School District has the highest rating on this site at 9/10. That places it in the 83rd percentile among Georgia school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on Georgia reading and math assessments, ranked against other districts in Georgia and converted to a 1–10 scale. Percentiles compare districts within Georgia only, never across state lines.