| Index | Allendale | Illinois | National |
| Average Test Scores | 42% | 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 |


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| Index | Allendale | Illinois | National |
| Completed 8th grade | 86.8% | 86.2% | 84.3% |
| Completed high school | 84.8% | 84.7% | 83.0% |
| Completed some college | 55.5% | 61.8% | 59.4% |
| Completed associate degree | 29.9% | 40.7% | 38.5% |
| Completed bachelors | 10.4% | 32.9% | 30.3% |
| Completed masters | 2.5% | 12.7% | 11.5% |
| Completed professional degree | 0.5% | 3.4% | 3.3% |
| Completed doctorate | 0.5% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Allendale. Using the proficiency score averages, the average test scores for Allendale, IL schools is 42%. The average student to teacher ratio is n/a. In Allendale, IL, an average of 86.8% of students have completed 8th grade and an average of 84.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Francisco, IN | 562 | 65% | 35.4% |
| Sumner, IL | 2,976 | 45% | 7.3% |
| Vincennes, IN | 17,514 | 43% | 9.5% |
| Princeton, IN | 9,020 | 42% | 12.2% |
| Mount Carmel, IL | 7,112 | 34% | 30.2% |
| Allendale, IL | 677 | 42% | 12.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Pangburn, AR | 677 | 48% | = 100 |
| Lake Hughes, CA | 677 | 47% | 2.1% |
| Rolette, ND | 677 | 45% | 6.8% |
| Scotland, SD | 677 | 41% | 15.6% |
| Mathiston, MS | 677 | 57% | 17.7% |
| Allendale, IL | 677 | 42% | 12.5% |