| Index | Monticello | Illinois | National |
| Average Test Scores | 46% | 33% | 48% |
| Student/Teacher ratio | 16:1 | 18:1 | 16:1 |
| Total public schools | 4 | 3,938 | 79,221 |
| Total private schools | 2 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Monticello | Illinois | National |
| Completed 8th grade | 96.5% | 86.2% | 84.3% |
| Completed high school | 96.1% | 84.7% | 83.0% |
| Completed some college | 68.3% | 61.8% | 59.4% |
| Completed associate degree | 52.5% | 40.7% | 38.5% |
| Completed bachelors | 43.9% | 32.9% | 30.3% |
| Completed masters | 19.4% | 12.7% | 11.5% |
| Completed professional degree | 4.1% | 3.4% | 3.3% |
| Completed doctorate | 1.7% | 1.2% | 1.3% |
There are a total of 4 public schools, 2 private schools and n/a post-secondary schools in Monticello. Using the proficiency score averages, the average test scores for Monticello, IL schools is 46%. The average student to teacher ratio is 16:1. In Monticello, IL, an average of 96.5% of students have completed 8th grade and an average of 96.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| White Heath, IL | 153 | 57% | 18.8% |
| Mahomet, IL | 8,888 | 52% | 7.6% |
| Cerro Gordo, IL | 1,275 | 45% | 7.3% |
| Farmer City, IL | 2,063 | 40% | 16.7% |
| Bement, IL | 1,490 | 39% | 18.8% |
| Monticello, IL | 5,815 | 46% | 3.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Alma, AR | 5,816 | 46% | 3.5% |
| Little Silver, NJ | 5,817 | 76% | 59.0% |
| Monroeville, AL | 5,812 | 27% | 44.8% |
| Hilton, NY | 5,811 | 62% | 28.5% |
| Rupert, ID | 5,820 | 39% | 18.2% |
| Monticello, IL | 5,815 | 46% | 3.8% |
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