| Index | Gardner | Kansas | National |
| Average Test Scores | 45% | 35% | 48% |
| Student/Teacher ratio | 14:1 | 14:1 | 16:1 |
| Total public schools | 6 | 970 | 79,221 |
| Total private schools | n/a | 190 | 24,874 |
| Total post-secondary schools | n/a | 86 | 7,963 |
| Index | Gardner | Kansas | National |
| Completed 8th grade | 90.3% | 87.4% | 84.3% |
| Completed high school | 89.9% | 86.1% | 83.0% |
| Completed some college | 71.3% | 63.7% | 59.4% |
| Completed associate degree | 43.9% | 39.8% | 38.5% |
| Completed bachelors | 33.7% | 31.6% | 30.3% |
| Completed masters | 9.2% | 11.4% | 11.5% |
| Completed professional degree | 0.9% | 3.0% | 3.3% |
| Completed doctorate | 0.2% | 1.2% | 1.3% |
There are a total of 6 public schools, n/a private schools and n/a post-secondary schools in Gardner. Using the proficiency score averages, the average test scores for Gardner, KS schools is 45%. The average student to teacher ratio is 14:1. In Gardner, KS, an average of 90.3% of students have completed 8th grade and an average of 89.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Edgerton, KS | 1,800 | 75% | 55.2% |
| Mission, KS | 9,936 | 56% | 16.1% |
| Overland Park, KS | 197,888 | 55% | 13.9% |
| Lenexa, KS | 56,388 | 50% | 3.5% |
| Shawnee, KS | 67,767 | 50% | 3.3% |
| Gardner, KS | 22,733 | 45% | 7.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Happy Valley, OR | 22,736 | 59% | 23.8% |
| Fort Walton Beach, FL | 22,726 | 55% | 14.3% |
| Prairie Village, KS | 22,725 | 66% | 37.3% |
| Rose Hill, VA | 22,707 | 85% | 76.0% |
| Pace, FL | 22,760 | 69% | 44.5% |
| Gardner, KS | 22,733 | 45% | 7.3% |
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