| Index | Peru | Illinois | National |
| Average Test Scores | 39% | 33% | 48% |
| Student/Teacher ratio | 14:1 | 18:1 | 16:1 |
| Total public schools | 3 | 3,938 | 79,221 |
| Total private schools | 4 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Peru | Illinois | National |
| Completed 8th grade | 88.6% | 86.2% | 84.3% |
| Completed high school | 87.2% | 84.7% | 83.0% |
| Completed some college | 57.9% | 61.8% | 59.4% |
| Completed associate degree | 33.4% | 40.7% | 38.5% |
| Completed bachelors | 23.4% | 32.9% | 30.3% |
| Completed masters | 7.9% | 12.7% | 11.5% |
| Completed professional degree | 3.1% | 3.4% | 3.3% |
| Completed doctorate | 1.8% | 1.2% | 1.3% |
There are a total of 3 public schools, 4 private schools and n/a post-secondary schools in Peru. Using the proficiency score averages, the average test scores for Peru, IL schools is 39%. The average student to teacher ratio is 14:1. In Peru, IL, an average of 88.6% of students have completed 8th grade and an average of 87.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dalzell, IL | 628 | 55% | 14.6% |
| Cherry, IL | 479 | 50% | 4.2% |
| Mendota, IL | 6,927 | 33% | 31.9% |
| Malden, IL | 411 | 30% | 37.5% |
| Ladd, IL | 1,242 | 30% | 38.5% |
| Peru, IL | 9,777 | 39% | 19.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Paris, KY | 9,776 | 40% | 16.7% |
| Rifle, CO | 9,771 | 29% | 40.4% |
| Baker City, OR | 9,786 | 53% | 9.9% |
| Ingleside, TX | 9,768 | 46% | 5.2% |
| Victoria, MN | 9,787 | 75% | 55.2% |
| Peru, IL | 9,777 | 39% | 19.8% |
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