| Index | Oakdale | Illinois | National |
| Average Test Scores | 45% | 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 |
| Index | Oakdale | Illinois | National |
| Completed 8th grade | 84.2% | 86.2% | 84.3% |
| Completed high school | 80.7% | 84.7% | 83.0% |
| Completed some college | 59.6% | 61.8% | 59.4% |
| Completed associate degree | 37.7% | 40.7% | 38.5% |
| Completed bachelors | 19.3% | 32.9% | 30.3% |
| Completed masters | 5.3% | 12.7% | 11.5% |
| Completed professional degree | 2.6% | 3.4% | 3.3% |
| Completed doctorate | 0.9% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Oakdale. Using the proficiency score averages, the average test scores for Oakdale, IL schools is 45%. The average student to teacher ratio is n/a. In Oakdale, IL, an average of 84.2% of students have completed 8th grade and an average of 80.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| St. Libory, IL | 607 | 50% | 4.2% |
| Okawville, IL | 1,511 | 45% | 7.3% |
| Tamaroa, IL | 767 | 40% | 17.7% |
| Pinckneyville, IL | 5,559 | 36% | 25.3% |
| Coulterville, IL | 904 | 33% | 32.3% |
| Oakdale, IL | 303 | 45% | 6.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Cuba, AL | 303 | 25% | 49.0% |
| Belcher, LA | 303 | 94% | 95.8% |
| Viola, AR | 303 | 56% | 16.1% |
| Alta, WY | 303 | 75% | 56.3% |
| Gary, MN | 303 | 57% | 18.8% |
| Oakdale, IL | 303 | 45% | 6.3% |
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