| Index | Foster | Nebraska | National |
| Average Test Scores | n/a | 53% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 780 | 79,221 |
| Total private schools | n/a | 182 | 24,874 |
| Total post-secondary schools | n/a | 56 | 7,963 |
| Index | Foster | Nebraska | National |
| Completed 8th grade | 95.1% | 88.4% | 84.3% |
| Completed high school | 95.1% | 87.2% | 83.0% |
| Completed some college | 70.7% | 63.7% | 59.4% |
| Completed associate degree | 34.1% | 40.1% | 38.5% |
| Completed bachelors | 19.5% | 30.0% | 30.3% |
| Completed masters | 9.8% | 9.9% | 11.5% |
| Completed professional degree | 0.0% | 2.9% | 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 Foster. Using the proficiency score averages, the average test scores for Foster, NE schools is n/a. The average student to teacher ratio is n/a. In Foster, NE, an average of 95.1% of students have completed 8th grade and an average of 95.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Osmond, NE | 794 | 73% | 51.0% |
| Pierce, NE | 1,973 | 66% | 37.0% |
| Plainview, NE | 1,440 | 55% | 13.5% |
| Creighton, NE | 1,253 | 53% | 10.9% |
| Foster, NE | 46 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Hamer, ID | 45 | 50% | 4.2% |
| Paynes Creek, CA | 47 | 50% | 4.2% |
| Interior, SD | 47 | 50% | 4.2% |
| Chenega, AK | 48 | 50% | 4.2% |
| Seven Springs, NC | 44 | 35% | 27.6% |
| Foster, NE | 46 | n/a |
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