| Index | Fairmont | 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 | Fairmont | Illinois | National |
| Completed 8th grade | 77.2% | 86.2% | 84.3% |
| Completed high school | 76.2% | 84.7% | 83.0% |
| Completed some college | 46.5% | 61.8% | 59.4% |
| Completed associate degree | 20.5% | 40.7% | 38.5% |
| Completed bachelors | 14.7% | 32.9% | 30.3% |
| Completed masters | 3.8% | 12.7% | 11.5% |
| Completed professional degree | 0.8% | 3.4% | 3.3% |
| Completed doctorate | 0.8% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Fairmont. Using the proficiency score averages, the average test scores for Fairmont, IL schools is n/a. The average student to teacher ratio is n/a. In Fairmont, IL, an average of 77.2% of students have completed 8th grade and an average of 76.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Naperville, IL | 147,734 | 65% | 35.1% |
| Hickory Hills, IL | 14,253 | 63% | 30.2% |
| Palos Park, IL | 4,779 | 61% | 26.6% |
| Frankfort, IL | 19,166 | 56% | 16.3% |
| Homer Glen, IL | 24,521 | 55% | 14.6% |
| Fairmont, IL | 2,690 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Solon, IA | 2,690 | 86% | 78.4% |
| Chatfield, MN | 2,690 | 69% | 42.7% |
| Brusly, LA | 2,690 | 76% | 58.3% |
| Hudson, CO | 2,691 | 30% | 38.5% |
| Riverton, NJ | 2,691 | 70% | 44.8% |
| Fairmont, IL | 2,690 | n/a |
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