| Index | South Lancaster | Massachusetts | National |
| Average Test Scores | n/a | 52% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,167 | 79,221 |
| Total private schools | 2 | 508 | 24,874 |
| Total post-secondary schools | 1 | 193 | 7,963 |
| Index | South Lancaster | Massachusetts | National |
| Completed 8th grade | 95.8% | 88.3% | 84.3% |
| Completed high school | 94.3% | 87.2% | 83.0% |
| Completed some college | 74.6% | 65.0% | 59.4% |
| Completed associate degree | 59.0% | 49.0% | 38.5% |
| Completed bachelors | 44.7% | 41.2% | 30.3% |
| Completed masters | 6.6% | 18.2% | 11.5% |
| Completed professional degree | 1.1% | 5.4% | 3.3% |
| Completed doctorate | 0.0% | 2.6% | 1.3% |
There are a total of n/a public schools, 2 private schools and 1 post-secondary schools in South Lancaster. Using the proficiency score averages, the average test scores for South Lancaster, MA schools is n/a. The average student to teacher ratio is n/a. In South Lancaster, MA, an average of 95.8% of students have completed 8th grade and an average of 94.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hopkinton, MA | 3,864 | 82% | 69.8% |
| Groton, MA | 1,127 | 75% | 55.6% |
| Westborough, MA | 4,024 | 74% | 54.0% |
| Northborough, MA | 6,532 | 69% | 44.4% |
| Littleton Common, MA | 3,370 | 66% | 36.5% |
| South Lancaster, MA | 1,575 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Oakland, NE | 1,575 | 60% | 24.0% |
| Jackson Center, OH | 1,575 | 77% | 60.4% |
| Osgood, IN | 1,576 | 47% | 2.6% |
| Itasca, TX | 1,574 | 38% | 20.8% |
| Holland, TX | 1,574 | 59% | 22.6% |
| South Lancaster, MA | 1,575 | n/a |
Here are the best places to live in Massachusetts
Check out the 10 safest cities in Massachusetts
These are the 10 cheapest cities in Massachusetts
Check out the 10 most dangerous cities in Massachusetts