| Index | St. Augustine | 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 | St. Augustine | Illinois | National |
| Completed 8th grade | 87.9% | 86.2% | 84.3% |
| Completed high school | 86.8% | 84.7% | 83.0% |
| Completed some college | 45.1% | 61.8% | 59.4% |
| Completed associate degree | 11.0% | 40.7% | 38.5% |
| Completed bachelors | 8.8% | 32.9% | 30.3% |
| Completed masters | 0.0% | 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 St. Augustine. Using the proficiency score averages, the average test scores for St. Augustine, IL schools is n/a. The average student to teacher ratio is n/a. In St. Augustine, IL, an average of 87.9% of students have completed 8th grade and an average of 86.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| London Mills, IL | 326 | 38% | 20.5% |
| Good Hope, IL | 405 | 35% | 27.1% |
| Abingdon, IL | 3,570 | 27% | 43.2% |
| Roseville, IL | 852 | 26% | 46.9% |
| Knoxville, IL | 3,137 | 25% | 47.2% |
| St. Augustine, IL | 133 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Aleknagik, AK | 133 | 50% | 4.2% |
| Greycliff, MT | 133 | 50% | 4.2% |
| Monument, OR | 134 | 50% | 4.2% |
| Wisdom, MT | 132 | 50% | 4.2% |
| Tupman, CA | 134 | 27% | 43.8% |
| St. Augustine, IL | 133 | n/a |
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