| Index | Petersham | Massachusetts | National |
| Average Test Scores | 50% | 52% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,167 | 79,221 |
| Total private schools | n/a | 508 | 24,874 |
| Total post-secondary schools | n/a | 193 | 7,963 |
| Index | Petersham | Massachusetts | National |
| Completed 8th grade | 97.9% | 88.3% | 84.3% |
| Completed high school | 97.9% | 87.2% | 83.0% |
| Completed some college | 78.9% | 65.0% | 59.4% |
| Completed associate degree | 63.7% | 49.0% | 38.5% |
| Completed bachelors | 54.2% | 41.2% | 30.3% |
| Completed masters | 31.1% | 18.2% | 11.5% |
| Completed professional degree | 21.6% | 5.4% | 3.3% |
| Completed doctorate | 14.7% | 2.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Petersham. Using the proficiency score averages, the average test scores for Petersham, MA schools is 50%. The average student to teacher ratio is n/a. In Petersham, MA, an average of 97.9% of students have completed 8th grade and an average of 97.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Rutland, MA | 1,749 | 62% | 29.7% |
| South Ashburnham, MA | 883 | 55% | 14.1% |
| Barre, MA | 950 | 50% | 4.2% |
| Baldwinville, MA | 2,137 | 48% | 0.3% |
| Gardner, MA | 20,605 | 38% | 20.6% |
| Petersham, MA | 256 | 50% | 3.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Centerview, MO | 256 | 41% | 15.1% |
| Loganville, WI | 256 | 70% | 45.8% |
| Trenton, NC | 256 | 43% | 10.8% |
| Emmett, MI | 256 | 67% | 39.6% |
| Peetz, CO | 256 | 38% | 21.9% |
| Petersham, MA | 256 | 50% | 3.1% |
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