| Index | Warner | New Hampshire | National |
| Average Test Scores | 52% | 52% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 234 | 79,221 |
| Total private schools | n/a | 144 | 24,874 |
| Total post-secondary schools | n/a | 40 | 7,963 |
| Index | Warner | New Hampshire | National |
| Completed 8th grade | 92.9% | 89.5% | 84.3% |
| Completed high school | 92.9% | 88.4% | 83.0% |
| Completed some college | 60.6% | 64.2% | 59.4% |
| Completed associate degree | 49.3% | 45.3% | 38.5% |
| Completed bachelors | 36.5% | 35.5% | 30.3% |
| Completed masters | 17.7% | 13.4% | 11.5% |
| Completed professional degree | 6.4% | 3.3% | 3.3% |
| Completed doctorate | 3.5% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Warner. Using the proficiency score averages, the average test scores for Warner, NH schools is 52%. The average student to teacher ratio is n/a. In Warner, NH, an average of 92.9% of students have completed 8th grade and an average of 92.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Contoocook, NH | 1,353 | 68% | 42.0% |
| New London, NH | 1,364 | 67% | 39.6% |
| Bradford, NH | 306 | 62% | 29.2% |
| Henniker, NH | 2,566 | 53% | 9.4% |
| Concord, NH | 43,503 | 50% | 3.9% |
| Warner, NH | 638 | 52% | 8.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Elgin, IA | 638 | 78% | 62.0% |
| Lake Benton, MN | 638 | 61% | 27.1% |
| Tijeras, NM | 638 | 36% | 25.5% |
| Alton, MO | 638 | 30% | 37.5% |
| Metamora, OH | 638 | 79% | 64.9% |
| Warner, NH | 638 | 52% | 8.3% |
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