| Index | Guilford Center | Connecticut | National |
| Average Test Scores | 81% | 53% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 654 | 79,221 |
| Total private schools | n/a | 207 | 24,874 |
| Total post-secondary schools | n/a | 81 | 7,963 |
| Index | Guilford Center | Connecticut | National |
| Completed 8th grade | 93.0% | 88.0% | 84.3% |
| Completed high school | 93.0% | 86.9% | 83.0% |
| Completed some college | 81.6% | 62.9% | 59.4% |
| Completed associate degree | 64.0% | 45.5% | 38.5% |
| Completed bachelors | 57.2% | 38.0% | 30.3% |
| Completed masters | 26.3% | 16.8% | 11.5% |
| Completed professional degree | 9.4% | 4.6% | 3.3% |
| Completed doctorate | 2.8% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Guilford Center. Using the proficiency score averages, the average test scores for Guilford Center, CT schools is 81%. The average student to teacher ratio is n/a. In Guilford Center, CT, an average of 93.0% of students have completed 8th grade and an average of 93.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Chester Center, CT | 1,731 | 77% | 60.4% |
| Westbrook Center, CT | 2,257 | 77% | 60.4% |
| Madison Center, CT | 2,009 | 77% | 60.4% |
| Higganum, CT | 1,763 | 75% | 55.2% |
| Deep River Center, CT | 2,638 | 70% | 44.8% |
| Guilford Center, CT | 2,653 | 81% | 67.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Glen Rose, TX | 2,653 | 59% | 21.9% |
| North Middletown, NJ | 2,652 | 50% | 3.1% |
| Coudersport, PA | 2,652 | 52% | 8.3% |
| Meredith, NH | 2,651 | 57% | 18.1% |
| Casey, IL | 2,655 | 39% | 19.3% |
| Guilford Center, CT | 2,653 | 81% | 67.7% |
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