| Index | Mill Creek | Pennsylvania | National |
| Average Test Scores | 50% | 55% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 2,563 | 79,221 |
| Total private schools | n/a | 1,626 | 24,874 |
| Total post-secondary schools | n/a | 406 | 7,963 |
| Index | Mill Creek | Pennsylvania | National |
| Completed 8th grade | 78.0% | 86.9% | 84.3% |
| Completed high school | 73.6% | 85.6% | 83.0% |
| Completed some college | 24.8% | 53.6% | 59.4% |
| Completed associate degree | 7.9% | 37.4% | 38.5% |
| Completed bachelors | 3.1% | 29.3% | 30.3% |
| Completed masters | 1.6% | 11.5% | 11.5% |
| Completed professional degree | 0.0% | 3.3% | 3.3% |
| Completed doctorate | 0.0% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Mill Creek. Using the proficiency score averages, the average test scores for Mill Creek, PA schools is 50%. The average student to teacher ratio is n/a. In Mill Creek, PA, an average of 78.0% of students have completed 8th grade and an average of 73.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Strodes Mills, PA | 1,184 | 65% | 35.4% |
| Williamsburg, PA | 1,118 | 52% | 8.3% |
| Alexandria, PA | 389 | 48% | 0.5% |
| Huntingdon, PA | 6,950 | 42% | 12.8% |
| Mount Union, PA | 2,249 | 41% | 14.8% |
| Mill Creek, PA | 337 | 50% | 4.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Ellsworth, MI | 337 | 40% | 17.7% |
| Kinta, OK | 337 | 45% | 6.8% |
| Endicott, WA | 337 | 60% | 24.0% |
| Mill Village, PA | 337 | 82% | 70.8% |
| Princeton, CA | 337 | 25% | 47.9% |
| Mill Creek, PA | 337 | 50% | 4.2% |
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