| Index | South Ashburnham | Massachusetts | National |
| Average Test Scores | 55% | 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 | South Ashburnham | Massachusetts | National |
| Completed 8th grade | 92.1% | 88.3% | 84.3% |
| Completed high school | 92.1% | 87.2% | 83.0% |
| Completed some college | 64.4% | 65.0% | 59.4% |
| Completed associate degree | 49.4% | 49.0% | 38.5% |
| Completed bachelors | 33.9% | 41.2% | 30.3% |
| Completed masters | 9.3% | 18.2% | 11.5% |
| Completed professional degree | 0.0% | 5.4% | 3.3% |
| Completed doctorate | 0.0% | 2.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in South Ashburnham. Using the proficiency score averages, the average test scores for South Ashburnham, MA schools is 55%. The average student to teacher ratio is n/a. In South Ashburnham, MA, an average of 92.1% of students have completed 8th grade and an average of 92.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lunenburg, MA | 1,593 | 59% | 23.3% |
| Townsend, MA | 1,276 | 57% | 19.4% |
| Milford, NH | 8,644 | 56% | 17.0% |
| Barre, MA | 950 | 50% | 4.2% |
| Petersham, MA | 256 | 50% | 3.1% |
| South Ashburnham, MA | 883 | 55% | 14.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Rockford, OH | 883 | 83% | 72.6% |
| Brandon, WI | 882 | 48% | 0.5% |
| Morven, GA | 882 | 40% | 17.7% |
| Frost, TX | 882 | 42% | 12.5% |
| Arnold, NE | 881 | 68% | 40.6% |
| South Ashburnham, MA | 883 | 55% | 14.1% |
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