| Index | Mill Creek | Oklahoma | National |
| Average Test Scores | 32% | 32% | 48% |
| Student/Teacher ratio | n/a | 22:1 | 16:1 |
| Total public schools | n/a | 1,346 | 79,221 |
| Total private schools | n/a | 159 | 24,874 |
| Total post-secondary schools | n/a | 178 | 7,963 |
| Index | Mill Creek | Oklahoma | National |
| Completed 8th grade | 61.8% | 83.5% | 84.3% |
| Completed high school | 61.8% | 82.2% | 83.0% |
| Completed some college | 30.9% | 55.6% | 59.4% |
| Completed associate degree | 15.2% | 31.9% | 38.5% |
| Completed bachelors | 12.0% | 24.5% | 30.3% |
| Completed masters | 1.0% | 8.1% | 11.5% |
| Completed professional degree | 0.0% | 2.3% | 3.3% |
| Completed doctorate | 0.0% | 1.0% | 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, OK schools is 32%. The average student to teacher ratio is n/a. In Mill Creek, OK, an average of 61.8% of students have completed 8th grade and an average of 61.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sulphur, OK | 5,023 | 38% | 20.8% |
| Tishomingo, OK | 3,166 | 25% | 49.0% |
| Ravia, OK | 557 | 22% | 54.2% |
| Mill Creek, OK | 303 | 32% | 32.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Caney, OK | 303 | 32% | 32.8% |
| Noble, LA | 303 | 60% | 24.0% |
| Milligan, NE | 303 | 50% | 4.2% |
| Surrency, GA | 303 | 52% | 8.3% |
| Glenwood, WA | 303 | 38% | 21.9% |
| Mill Creek, OK | 303 | 32% | 32.8% |
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