| 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 | 1,298 | 55% | 13.5% |
| Millbrook, IL | 367 | 52% | 8.3% |
| Newark, IL | 1,376 | 50% | 3.5% |
| Hinckley, IL | 2,251 | 46% | 4.2% |
| Yorkville, IL | 19,794 | 46% | 4.4% |
| Millington, IL | 679 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Elgin, ND | 679 | 55% | 14.6% |
| San Luis, CO | 678 | 15% | 68.8% |
| Heuvelton, NY | 680 | 50% | 4.2% |
| Loa, UT | 680 | 42% | 12.5% |
| Unionville, MI | 678 | 42% | 12.5% |
| Millington, IL | 679 | n/a |