| Index | Naples | Illinois | National |
| Average Test Scores | n/a | 33% | 48% |
| Student/Teacher ratio | n/a | 18:1 | 16:1 |
| Total public schools | n/a | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Naples | Illinois | National |
| Completed 8th grade | 76.6% | 86.2% | 84.3% |
| Completed high school | 76.6% | 84.7% | 83.0% |
| Completed some college | 21.3% | 61.8% | 59.4% |
| Completed associate degree | 4.3% | 40.7% | 38.5% |
| Completed bachelors | 0.0% | 32.9% | 30.3% |
| Completed masters | 0.0% | 12.7% | 11.5% |
| Completed professional degree | 0.0% | 3.4% | 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, IL schools is n/a. The average student to teacher ratio is n/a. In Naples, IL, an average of 76.6% of students have completed 8th grade and an average of 76.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Concord, IL | 170 | 41% | 15.1% |
| Winchester, IL | 1,717 | 31% | 34.9% |
| Pittsfield, IL | 4,215 | 25% | 47.4% |
| Griggsville, IL | 1,454 | 25% | 47.9% |
| Meredosia, IL | 904 | 24% | 49.7% |
| Naples, IL | 143 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Brashear, MO | 143 | 50% | 4.2% |
| Atmautluak, AK | 143 | 10% | 79.2% |
| Antelope, OR | 143 | 50% | 4.2% |
| Miller City, OH | 142 | 87% | 80.9% |
| Gail, TX | 144 | 65% | 34.4% |
| Naples, IL | 143 | n/a |
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