| Index | Mendota | Illinois | National |
| Average Test Scores | 33% | 33% | 48% |
| Student/Teacher ratio | 22:1 | 18:1 | 16:1 |
| Total public schools | 4 | 3,938 | 79,221 |
| Total private schools | 1 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Mendota | Illinois | National |
| Completed 8th grade | 78.9% | 86.2% | 84.3% |
| Completed high school | 75.4% | 84.7% | 83.0% |
| Completed some college | 44.2% | 61.8% | 59.4% |
| Completed associate degree | 21.1% | 40.7% | 38.5% |
| Completed bachelors | 13.9% | 32.9% | 30.3% |
| Completed masters | 5.3% | 12.7% | 11.5% |
| Completed professional degree | 1.1% | 3.4% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 4 public schools, 1 private schools and n/a post-secondary schools in Mendota. Using the proficiency score averages, the average test scores for Mendota, IL schools is 33%. The average student to teacher ratio is 22:1. In Mendota, IL, an average of 78.9% of students have completed 8th grade and an average of 75.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dalzell, IL | 628 | 55% | 14.6% |
| Cherry, IL | 479 | 50% | 4.2% |
| Peru, IL | 9,777 | 39% | 19.8% |
| Ottawa, IL | 18,742 | 33% | 32.3% |
| Shabbona, IL | 937 | 32% | 32.8% |
| Mendota, IL | 6,927 | 33% | 31.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Live Oak, FL | 6,929 | 45% | 6.9% |
| Mount Carmel, IL | 6,922 | 34% | 30.2% |
| Savannah, TN | 6,934 | 30% | 36.9% |
| Madras, OR | 6,934 | 36% | 25.0% |
| Piñon Hills, CA | 6,937 | 43% | 10.4% |
| Mendota, IL | 6,927 | 33% | 31.9% |
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