| Index | North Decatur | Georgia | National |
| Average Test Scores | n/a | 42% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 2,164 | 79,221 |
| Total private schools | n/a | 515 | 24,874 |
| Total post-secondary schools | n/a | 192 | 7,963 |


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| Index | North Decatur | Georgia | National |
| Completed 8th grade | 93.6% | 82.3% | 84.3% |
| Completed high school | 92.5% | 81.0% | 83.0% |
| Completed some college | 84.3% | 57.8% | 59.4% |
| Completed associate degree | 71.2% | 36.8% | 38.5% |
| Completed bachelors | 67.2% | 29.4% | 30.3% |
| Completed masters | 31.8% | 11.1% | 11.5% |
| Completed professional degree | 12.9% | 3.2% | 3.3% |
| Completed doctorate | 7.2% | 1.3% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in North Decatur. Using the proficiency score averages, the average test scores for North Decatur, GA schools is n/a. The average student to teacher ratio is n/a. In North Decatur, GA, an average of 93.6% of students have completed 8th grade and an average of 92.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dunwoody, GA | 51,076 | 68% | 42.4% |
| Duluth, GA | 30,718 | 61% | 27.5% |
| Scottdale, GA | 11,547 | 61% | 26.0% |
| Avondale Estates, GA | 3,259 | 58% | 20.1% |
| Marietta, GA | 62,336 | 58% | 19.8% |
| North Decatur, GA | 16,271 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Longmeadow, MA | 16,275 | 70% | 46.7% |
| Discovery Bay, CA | 16,286 | 54% | 11.5% |
| Rye, NY | 16,251 | 82% | 71.3% |
| Bellmore, NY | 16,248 | 80% | 67.0% |
| Fillmore, CA | 16,243 | 25% | 48.1% |
| North Decatur, GA | 16,271 | n/a |