| Index | Sandwich | Illinois | National |
| Average Test Scores | 46% | 33% | 48% |
| Student/Teacher ratio | 17:1 | 18:1 | 16:1 |
| Total public schools | 7 | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Sandwich | Illinois | National |
| Completed 8th grade | 84.6% | 86.2% | 84.3% |
| Completed high school | 83.0% | 84.7% | 83.0% |
| Completed some college | 51.1% | 61.8% | 59.4% |
| Completed associate degree | 23.4% | 40.7% | 38.5% |
| Completed bachelors | 14.8% | 32.9% | 30.3% |
| Completed masters | 4.7% | 12.7% | 11.5% |
| Completed professional degree | 0.6% | 3.4% | 3.3% |
| Completed doctorate | 0.2% | 1.2% | 1.3% |
There are a total of 7 public schools, n/a private schools and n/a post-secondary schools in Sandwich. Using the proficiency score averages, the average test scores for Sandwich, IL schools is 46%. The average student to teacher ratio is 17:1. In Sandwich, IL, an average of 84.6% of students have completed 8th grade and an average of 83.0% 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% |
| Sandwich, IL | 7,351 | 46% | 5.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Charles City, IA | 7,351 | 54% | 11.8% |
| Globe, AZ | 7,351 | 29% | 39.9% |
| Iron Mountain, MI | 7,352 | 41% | 13.8% |
| Hudsonville, MI | 7,353 | 71% | 47.8% |
| Tuttle, OK | 7,348 | 48% | 0.5% |
| Sandwich, IL | 7,351 | 46% | 5.2% |
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