| Index | Foster | 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 | Foster | Oklahoma | National |
| Completed 8th grade | 86.7% | 83.5% | 84.3% |
| Completed high school | 84.1% | 82.2% | 83.0% |
| Completed some college | 31.9% | 55.6% | 59.4% |
| Completed associate degree | 17.7% | 31.9% | 38.5% |
| Completed bachelors | 15.0% | 24.5% | 30.3% |
| Completed masters | 1.8% | 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 Foster. Using the proficiency score averages, the average test scores for Foster, OK schools is n/a. The average student to teacher ratio is n/a. In Foster, OK, an average of 86.7% of students have completed 8th grade and an average of 84.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Pauls Valley, OK | 6,128 | 40% | 16.9% |
| Velma, OK | 641 | 33% | 31.3% |
| Elmore City, OK | 934 | 24% | 50.0% |
| Foster, OK | 310 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Goodrich, TX | 310 | 45% | 6.6% |
| Amazonia, MO | 310 | 45% | 6.3% |
| Hanoverton, OH | 310 | 71% | 47.9% |
| Burton, TX | 310 | 46% | 4.7% |
| Selfridge, ND | 309 | 23% | 53.1% |
| Foster, OK | 310 | n/a |
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