| Index | Troy | Illinois | National |
| Average Test Scores | 43% | 33% | 48% |
| Student/Teacher ratio | 34:1 | 18:1 | 16:1 |
| Total public schools | 5 | 3,938 | 79,221 |
| Total private schools | 1 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Troy | Illinois | National |
| Completed 8th grade | 94.1% | 86.2% | 84.3% |
| Completed high school | 94.1% | 84.7% | 83.0% |
| Completed some college | 70.4% | 61.8% | 59.4% |
| Completed associate degree | 40.3% | 40.7% | 38.5% |
| Completed bachelors | 29.5% | 32.9% | 30.3% |
| Completed masters | 9.8% | 12.7% | 11.5% |
| Completed professional degree | 1.0% | 3.4% | 3.3% |
| Completed doctorate | 0.7% | 1.2% | 1.3% |
There are a total of 5 public schools, 1 private schools and n/a post-secondary schools in Troy. Using the proficiency score averages, the average test scores for Troy, IL schools is 43%. The average student to teacher ratio is 34:1. In Troy, IL, an average of 94.1% of students have completed 8th grade and an average of 94.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| St. Jacob, IL | 1,529 | 67% | 39.6% |
| Maryville, IL | 7,962 | 65% | 34.4% |
| Glen Carbon, IL | 12,468 | 57% | 18.8% |
| Worden, IL | 875 | 57% | 18.8% |
| Albers, IL | 1,379 | 57% | 18.8% |
| Troy, IL | 10,278 | 43% | 10.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Pella, IA | 10,279 | 84% | 75.6% |
| Gig Harbor, WA | 10,280 | 65% | 35.9% |
| Arden Hills, MN | 10,276 | 65% | 34.9% |
| Mapleton, UT | 10,270 | 53% | 10.9% |
| Jefferson, LA | 10,286 | 53% | 10.6% |
| Troy, IL | 10,278 | 43% | 10.8% |
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