| Index | Lancaster | New Hampshire | National |
| Average Test Scores | 40% | 52% | 48% |
| Student/Teacher ratio | 12:1 | 13:1 | 16:1 |
| Total public schools | 1 | 234 | 79,221 |
| Total private schools | 1 | 144 | 24,874 |
| Total post-secondary schools | n/a | 40 | 7,963 |
| Index | Lancaster | New Hampshire | National |
| Completed 8th grade | 89.3% | 89.5% | 84.3% |
| Completed high school | 86.9% | 88.4% | 83.0% |
| Completed some college | 58.0% | 64.2% | 59.4% |
| Completed associate degree | 40.9% | 45.3% | 38.5% |
| Completed bachelors | 29.0% | 35.5% | 30.3% |
| Completed masters | 17.0% | 13.4% | 11.5% |
| Completed professional degree | 3.2% | 3.3% | 3.3% |
| Completed doctorate | 0.0% | 1.4% | 1.3% |
There are a total of 1 public schools, 1 private schools and n/a post-secondary schools in Lancaster. Using the proficiency score averages, the average test scores for Lancaster, NH schools is 40%. The average student to teacher ratio is 12:1. In Lancaster, NH, an average of 89.3% of students have completed 8th grade and an average of 86.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Bethlehem, NH | 1,061 | 67% | 39.9% |
| Whitefield, NH | 1,202 | 55% | 13.5% |
| Littleton, NH | 4,294 | 48% | 0.3% |
| Groveton, NH | 914 | 34% | 29.2% |
| Lancaster, NH | 1,892 | 40% | 17.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Mayville, ND | 1,892 | 51% | 6.9% |
| Van Horn, TX | 1,893 | 26% | 46.9% |
| Wellston, MO | 1,891 | 11% | 77.1% |
| St. Francisville, LA | 1,891 | 80% | 66.7% |
| Granger, IA | 1,890 | 87% | 81.3% |
| Lancaster, NH | 1,892 | 40% | 17.7% |
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