| Index | Grafton | 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 | Grafton | Nebraska | National |
| Completed 8th grade | 81.6% | 88.4% | 84.3% |
| Completed high school | 79.6% | 87.2% | 83.0% |
| Completed some college | 46.9% | 63.7% | 59.4% |
| Completed associate degree | 17.3% | 40.1% | 38.5% |
| Completed bachelors | 7.1% | 30.0% | 30.3% |
| Completed masters | 0.0% | 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 Grafton. Using the proficiency score averages, the average test scores for Grafton, NE schools is n/a. The average student to teacher ratio is n/a. In Grafton, NE, an average of 81.6% of students have completed 8th grade and an average of 79.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Henderson, NE | 946 | 66% | 37.0% |
| Geneva, NE | 1,955 | 63% | 31.6% |
| Shickley, NE | 278 | 60% | 25.0% |
| Sutton, NE | 1,368 | 56% | 16.1% |
| Fairmont, NE | 750 | 52% | 8.3% |
| Grafton, NE | 146 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Downsville, LA | 146 | 69% | 43.8% |
| Crossnore, NC | 146 | 33% | 30.7% |
| Chinese Camp, CA | 146 | 60% | 25.0% |
| Cloverdale, OR | 146 | 42% | 12.5% |
| Port Lions, AK | 145 | 50% | 4.2% |
| Grafton, NE | 146 | n/a |
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