| Index | New Milford | 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 | New Milford | Illinois | National |
| Completed 8th grade | 72.9% | 86.2% | 84.3% |
| Completed high school | 71.8% | 84.7% | 83.0% |
| Completed some college | 42.6% | 61.8% | 59.4% |
| Completed associate degree | 22.7% | 40.7% | 38.5% |
| Completed bachelors | 13.1% | 32.9% | 30.3% |
| Completed masters | 4.2% | 12.7% | 11.5% |
| Completed professional degree | 0.6% | 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 New Milford. Using the proficiency score averages, the average test scores for New Milford, IL schools is n/a. The average student to teacher ratio is n/a. In New Milford, IL, an average of 72.9% of students have completed 8th grade and an average of 71.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Byron, IL | 3,607 | 55% | 14.6% |
| Stillman Valley, IL | 1,348 | 40% | 16.7% |
| Winnebago, IL | 3,539 | 35% | 27.1% |
| Machesney Park, IL | 22,709 | 34% | 29.2% |
| Poplar Grove, IL | 4,497 | 30% | 37.7% |
| New Milford, IL | 1,356 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Capitan, NM | 1,356 | 36% | 24.7% |
| Cairo, NY | 1,356 | 53% | 9.4% |
| Hillsboro, WI | 1,357 | 40% | 17.7% |
| Dallesport, WA | 1,357 | 35% | 27.1% |
| Jonesville, VA | 1,355 | 79% | 64.2% |
| New Milford, IL | 1,356 | n/a |
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