| Index | Garner | North Carolina | National |
| Average Test Scores | 38% | 43% | 48% |
| Student/Teacher ratio | 15:1 | 15:1 | 16:1 |
| Total public schools | 10 | 1,895 | 79,221 |
| Total private schools | 1 | 510 | 24,874 |
| Total post-secondary schools | 1 | 183 | 7,963 |
| Index | Garner | North Carolina | National |
| Completed 8th grade | 88.0% | 83.4% | 84.3% |
| Completed high school | 87.5% | 81.9% | 83.0% |
| Completed some college | 67.3% | 59.9% | 59.4% |
| Completed associate degree | 43.0% | 38.1% | 38.5% |
| Completed bachelors | 33.7% | 29.0% | 30.3% |
| Completed masters | 9.7% | 10.2% | 11.5% |
| Completed professional degree | 2.5% | 2.9% | 3.3% |
| Completed doctorate | 1.1% | 1.3% | 1.3% |
There are a total of 10 public schools, 1 private schools and 1 post-secondary schools in Garner. Using the proficiency score averages, the average test scores for Garner, NC schools is 38%. The average student to teacher ratio is 15:1. In Garner, NC, an average of 88.0% of students have completed 8th grade and an average of 87.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Morrisville, NC | 27,582 | 66% | 37.8% |
| Apex, NC | 55,220 | 65% | 35.0% |
| Cary, NC | 169,177 | 62% | 28.6% |
| Holly Springs, NC | 36,595 | 62% | 28.5% |
| Fuquay-Varina, NC | 29,110 | 48% | 0.5% |
| Garner, NC | 30,345 | 38% | 21.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Poughkeepsie, NY | 30,341 | 47% | 2.6% |
| North Tonawanda, NY | 30,338 | 57% | 18.6% |
| Atwater, CA | 30,336 | 38% | 20.4% |
| Cibolo, TX | 30,333 | 57% | 18.5% |
| Syracuse, UT | 30,366 | 51% | 5.6% |
| Garner, NC | 30,345 | 38% | 21.9% |
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