| Index | Somonauk | Illinois | National |
| Average Test Scores | 46% | 33% | 48% |
| Student/Teacher ratio | 17:1 | 18:1 | 16:1 |
| Total public schools | 3 | 3,938 | 79,221 |
| Total private schools | 1 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Somonauk | Illinois | National |
| Completed 8th grade | 91.6% | 86.2% | 84.3% |
| Completed high school | 90.9% | 84.7% | 83.0% |
| Completed some college | 58.5% | 61.8% | 59.4% |
| Completed associate degree | 36.2% | 40.7% | 38.5% |
| Completed bachelors | 21.8% | 32.9% | 30.3% |
| Completed masters | 7.2% | 12.7% | 11.5% |
| Completed professional degree | 0.8% | 3.4% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Somonauk. Using the proficiency score averages, the average test scores for Somonauk, IL schools is 46%. The average student to teacher ratio is 17:1. In Somonauk, IL, an average of 91.6% of students have completed 8th grade and an average of 90.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Big Rock, IL | 1,271 | 55% | 13.5% |
| Millbrook, IL | 357 | 52% | 8.3% |
| Newark, IL | 1,325 | 50% | 3.5% |
| Hinckley, IL | 2,190 | 46% | 4.2% |
| Yorkville, IL | 19,386 | 46% | 4.4% |
| Somonauk, IL | 2,027 | 46% | 5.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Woodville, OH | 2,027 | 77% | 59.9% |
| Wautoma, WI | 2,028 | 36% | 25.3% |
| Greentown, IN | 2,028 | 50% | 4.9% |
| Honey Grove, TX | 2,026 | 47% | 2.8% |
| Port Byron, IL | 2,028 | 44% | 8.0% |
| Somonauk, IL | 2,027 | 46% | 5.2% |
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