| Index | Naples | South Dakota | National |
| Average Test Scores | n/a | 48% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 340 | 79,221 |
| Total private schools | n/a | 76 | 24,874 |
| Total post-secondary schools | n/a | 25 | 7,963 |

| Index | Naples | South Dakota | National |
| Completed 8th grade | 100.0% | 89.1% | 84.3% |
| Completed high school | 77.8% | 86.8% | 83.0% |
| Completed some college | 0.0% | 60.4% | 59.4% |
| Completed associate degree | 0.0% | 38.5% | 38.5% |
| Completed bachelors | 0.0% | 27.5% | 30.3% |
| Completed masters | 0.0% | 8.1% | 11.5% |
| Completed professional degree | 0.0% | 2.5% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Naples. Using the proficiency score averages, the average test scores for Naples, SD schools is n/a. The average student to teacher ratio is n/a. In Naples, SD, an average of 100.0% of students have completed 8th grade and an average of 77.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Willow Lake, SD | 454 | 50% | 4.2% |
| Henry, SD | 306 | 47% | 2.8% |
| Clark, SD | 1,272 | 42% | 11.7% |
| Garden City, SD | 97 | 20% | 58.3% |
| Naples, SD | 45 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Crestone, CO | 45 | 18% | 63.5% |
| Iliamna, AK | 45 | 20% | 58.3% |
| Seven Springs, NC | 46 | 35% | 27.6% |
| Circle, AK | 44 | 50% | 4.2% |
| Avilla, MO | 43 | 35% | 28.1% |
| Naples, SD | 45 | n/a |