| Index | Charlestown | New Hampshire | National |
| Average Test Scores | 41% | 52% | 48% |
| Student/Teacher ratio | 13:1 | 13:1 | 16:1 |
| Total public schools | 3 | 234 | 79,221 |
| Total private schools | n/a | 144 | 24,874 |
| Total post-secondary schools | n/a | 40 | 7,963 |
| Index | Charlestown | New Hampshire | National |
| Completed 8th grade | 92.9% | 89.5% | 84.3% |
| Completed high school | 91.8% | 88.4% | 83.0% |
| Completed some college | 51.7% | 64.2% | 59.4% |
| Completed associate degree | 29.9% | 45.3% | 38.5% |
| Completed bachelors | 14.9% | 35.5% | 30.3% |
| Completed masters | 3.0% | 13.4% | 11.5% |
| Completed professional degree | 0.0% | 3.3% | 3.3% |
| Completed doctorate | 0.0% | 1.4% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Charlestown. Using the proficiency score averages, the average test scores for Charlestown, NH schools is 41%. The average student to teacher ratio is 13:1. In Charlestown, NH, an average of 92.9% of students have completed 8th grade and an average of 91.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| North Walpole, NH | 560 | 65% | 35.4% |
| Walpole, NH | 647 | 60% | 24.0% |
| Claremont, NH | 12,969 | 38% | 20.2% |
| Newport, NH | 5,530 | 33% | 31.8% |
| Charlestown, NH | 933 | 41% | 13.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Mertztown, PA | 933 | 55% | 13.5% |
| Salem, NY | 933 | 53% | 10.9% |
| Wayne City, IL | 934 | 31% | 35.4% |
| Milford, TX | 934 | 25% | 49.0% |
| Inkom, ID | 934 | 62% | 29.2% |
| Charlestown, NH | 933 | 41% | 13.9% |
Here are the best places to live in New Hampshire
See the best places to live in Charlestown
Most Dangerous Cities In The US
These are the largest cities in New Hampshire