| Index | Polk | Nebraska | National |
| Average Test Scores | 50% | 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 | Polk | Nebraska | National |
| Completed 8th grade | 94.7% | 88.4% | 84.3% |
| Completed high school | 94.7% | 87.2% | 83.0% |
| Completed some college | 53.1% | 63.7% | 59.4% |
| Completed associate degree | 18.0% | 40.1% | 38.5% |
| Completed bachelors | 12.2% | 30.0% | 30.3% |
| Completed masters | 4.1% | 9.9% | 11.5% |
| Completed professional degree | 1.6% | 2.9% | 3.3% |
| Completed doctorate | 1.2% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Polk. Using the proficiency score averages, the average test scores for Polk, NE schools is 50%. The average student to teacher ratio is n/a. In Polk, NE, an average of 94.7% of students have completed 8th grade and an average of 94.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hampton, NE | 440 | 68% | 40.6% |
| Stromsburg, NE | 1,028 | 63% | 31.3% |
| York, NE | 7,810 | 60% | 25.0% |
| Aurora, NE | 4,523 | 59% | 23.6% |
| Osceola, NE | 826 | 57% | 18.1% |
| Polk, NE | 319 | 50% | 4.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Milford, NY | 319 | 50% | 3.1% |
| Brooker, FL | 319 | 50% | 4.2% |
| Taylorsville, GA | 319 | 54% | 11.5% |
| West Union, SC | 319 | 61% | 26.0% |
| Callao, MO | 319 | 40% | 16.7% |
| Polk, NE | 319 | 50% | 4.2% |
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