| Index | Parkersburg | Illinois | National |
| Average Test Scores | n/a | 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 | Parkersburg | Illinois | National |
| Completed 8th grade | 68.0% | 86.2% | 84.3% |
| Completed high school | 67.0% | 84.7% | 83.0% |
| Completed some college | 30.9% | 61.8% | 59.4% |
| Completed associate degree | 16.5% | 40.7% | 38.5% |
| Completed bachelors | 1.0% | 32.9% | 30.3% |
| Completed masters | 1.0% | 12.7% | 11.5% |
| Completed professional degree | 0.0% | 3.4% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Parkersburg. Using the proficiency score averages, the average test scores for Parkersburg, IL schools is n/a. The average student to teacher ratio is n/a. In Parkersburg, IL, an average of 68.0% of students have completed 8th grade and an average of 67.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| West Salem, IL | 872 | 52% | 8.3% |
| Sumner, IL | 2,916 | 45% | 7.3% |
| Mount Erie, IL | 114 | 40% | 16.7% |
| Albion, IL | 2,215 | 33% | 30.7% |
| Olney, IL | 8,872 | 29% | 40.6% |
| Parkersburg, IL | 223 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| De Tour Village, MI | 223 | 48% | 1.0% |
| Wakarusa, KS | 223 | 30% | 38.5% |
| Gainesville, NY | 224 | 61% | 26.0% |
| Adrian, OR | 224 | 51% | 6.3% |
| Holcombe, WI | 222 | 31% | 35.4% |
| Parkersburg, IL | 223 | n/a |
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