| Index | Millington | 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 | Millington | Illinois | National |
| Completed 8th grade | 86.4% | 86.2% | 84.3% |
| Completed high school | 86.4% | 84.7% | 83.0% |
| Completed some college | 47.4% | 61.8% | 59.4% |
| Completed associate degree | 22.6% | 40.7% | 38.5% |
| Completed bachelors | 15.4% | 32.9% | 30.3% |
| Completed masters | 3.8% | 12.7% | 11.5% |
| Completed professional degree | 1.1% | 3.4% | 3.3% |
| Completed doctorate | 0.4% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Millington. Using the proficiency score averages, the average test scores for Millington, IL schools is n/a. The average student to teacher ratio is n/a. In Millington, IL, an average of 86.4% of students have completed 8th grade and an average of 86.4% 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% |
| Millington, IL | 662 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Elgin, ND | 662 | 55% | 14.6% |
| Fairland, IN | 662 | 56% | 16.0% |
| Bluford, IL | 662 | 34% | 29.2% |
| Cowiche, WA | 662 | 43% | 10.8% |
| Kiowa, CO | 663 | 42% | 13.2% |
| Millington, IL | 662 | n/a |
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