| Index | Custer City | Oklahoma | National |
| Average Test Scores | n/a | 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 | Custer City | Oklahoma | National |
| Completed 8th grade | 84.9% | 83.5% | 84.3% |
| Completed high school | 81.0% | 82.2% | 83.0% |
| Completed some college | 46.6% | 55.6% | 59.4% |
| Completed associate degree | 18.1% | 31.9% | 38.5% |
| Completed bachelors | 13.4% | 24.5% | 30.3% |
| Completed masters | 0.4% | 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 Custer City. Using the proficiency score averages, the average test scores for Custer City, OK schools is n/a. The average student to teacher ratio is n/a. In Custer City, OK, an average of 84.9% of students have completed 8th grade and an average of 81.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Thomas, OK | 1,244 | 47% | 1.7% |
| Weatherford, OK | 11,908 | 43% | 10.2% |
| Arapaho, OK | 953 | 40% | 16.7% |
| Clinton, OK | 9,117 | 29% | 40.6% |
| Custer City, OK | 383 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Blunt, SD | 383 | 50% | 4.2% |
| Ackerly, TX | 383 | 60% | 24.0% |
| Fabius, NY | 383 | 52% | 8.3% |
| Alpena, AR | 383 | 51% | 5.7% |
| Bruni, TX | 383 | 38% | 21.9% |
| Custer City, OK | 383 | n/a |
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