| Index | Lithonia | Georgia | National |
| Average Test Scores | 24% | 42% | 48% |
| Student/Teacher ratio | 18:1 | 16:1 | 16:1 |
| Total public schools | 15 | 2,164 | 79,221 |
| Total private schools | 9 | 515 | 24,874 |
| Total post-secondary schools | 1 | 192 | 7,963 |
| Index | Lithonia | Georgia | National |
| Completed 8th grade | 83.6% | 82.3% | 84.3% |
| Completed high school | 82.2% | 81.0% | 83.0% |
| Completed some college | 46.5% | 57.8% | 59.4% |
| Completed associate degree | 24.9% | 36.8% | 38.5% |
| Completed bachelors | 10.1% | 29.4% | 30.3% |
| Completed masters | 1.7% | 11.1% | 11.5% |
| Completed professional degree | 0.2% | 3.2% | 3.3% |
| Completed doctorate | 0.2% | 1.3% | 1.3% |
There are a total of 15 public schools, 9 private schools and 1 post-secondary schools in Lithonia. Using the proficiency score averages, the average test scores for Lithonia, GA schools is 24%. The average student to teacher ratio is 18:1. In Lithonia, GA, an average of 83.6% of students have completed 8th grade and an average of 82.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Grayson, GA | 4,303 | 66% | 36.7% |
| Scottdale, GA | 11,196 | 61% | 26.0% |
| Avondale Estates, GA | 3,142 | 58% | 20.1% |
| Loganville, GA | 12,490 | 55% | 15.0% |
| Lilburn, GA | 12,755 | 51% | 5.5% |
| Lithonia, GA | 2,488 | 24% | 49.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Country Club, MO | 2,488 | 62% | 29.2% |
| Bloomfield, IN | 2,488 | 46% | 5.0% |
| Leavenworth, WA | 2,489 | 60% | 24.2% |
| Orchard Lake Village, MI | 2,489 | 47% | 3.1% |
| Shepherd, TX | 2,489 | 31% | 35.4% |
| Lithonia, GA | 2,488 | 24% | 49.6% |
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