| Index | Forreston | Illinois | National |
| Average Test Scores | 41% | 33% | 48% |
| Student/Teacher ratio | 17:1 | 18:1 | 16:1 |
| Total public schools | 3 | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Forreston | Illinois | National |
| Completed 8th grade | 90.4% | 86.2% | 84.3% |
| Completed high school | 89.9% | 84.7% | 83.0% |
| Completed some college | 46.0% | 61.8% | 59.4% |
| Completed associate degree | 21.1% | 40.7% | 38.5% |
| Completed bachelors | 10.2% | 32.9% | 30.3% |
| Completed masters | 3.5% | 12.7% | 11.5% |
| Completed professional degree | 1.7% | 3.4% | 3.3% |
| Completed doctorate | 0.4% | 1.2% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Forreston. Using the proficiency score averages, the average test scores for Forreston, IL schools is 41%. The average student to teacher ratio is 17:1. In Forreston, IL, an average of 90.4% of students have completed 8th grade and an average of 89.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Pecatonica, IL | 1,957 | 57% | 19.4% |
| Shannon, IL | 745 | 50% | 3.1% |
| Lanark, IL | 1,453 | 47% | 2.1% |
| Pearl City, IL | 831 | 41% | 15.6% |
| Polo, IL | 2,210 | 39% | 19.1% |
| Forreston, IL | 1,392 | 41% | 14.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Jarrell, TX | 1,392 | 36% | 25.7% |
| Charlestown, RI | 1,392 | 70% | 44.8% |
| Owensville, IN | 1,391 | 49% | 1.0% |
| Harper, TX | 1,391 | 55% | 13.9% |
| Grant, NE | 1,393 | 61% | 26.6% |
| Forreston, IL | 1,392 | 41% | 14.6% |
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