| Index | Potomac | Illinois | National |
| Average Test Scores | 22% | 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 | Potomac | Illinois | National |
| Completed 8th grade | 89.4% | 86.2% | 84.3% |
| Completed high school | 89.0% | 84.7% | 83.0% |
| Completed some college | 35.0% | 61.8% | 59.4% |
| Completed associate degree | 17.4% | 40.7% | 38.5% |
| Completed bachelors | 9.6% | 32.9% | 30.3% |
| Completed masters | 3.3% | 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 Potomac. Using the proficiency score averages, the average test scores for Potomac, IL schools is 22%. The average student to teacher ratio is n/a. In Potomac, IL, an average of 89.4% of students have completed 8th grade and an average of 89.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Royal, IL | 370 | 65% | 35.4% |
| St. Joseph, IL | 4,053 | 52% | 7.6% |
| Ogden, IL | 773 | 42% | 12.5% |
| Gifford, IL | 920 | 42% | 12.5% |
| Bismarck, IL | 536 | 38% | 21.5% |
| Potomac, IL | 744 | 22% | 54.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Cedar Bluffs, NE | 744 | 46% | 4.7% |
| Ooltewah, TN | 744 | 45% | 7.0% |
| Scranton, SC | 745 | 37% | 22.9% |
| Burneyville, OK | 743 | 25% | 48.4% |
| Viola, WI | 743 | 37% | 22.9% |
| Potomac, IL | 744 | 22% | 54.2% |
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