| Index | Waterbury | Connecticut | National |
| Average Test Scores | 29% | 53% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 30 | 654 | 79,221 |
| Total private schools | 14 | 207 | 24,874 |
| Total post-secondary schools | 5 | 81 | 7,963 |
| Index | Waterbury | Connecticut | National |
| Completed 8th grade | 76.9% | 88.0% | 84.3% |
| Completed high school | 74.1% | 86.9% | 83.0% |
| Completed some college | 43.0% | 62.9% | 59.4% |
| Completed associate degree | 22.7% | 45.5% | 38.5% |
| Completed bachelors | 15.1% | 38.0% | 30.3% |
| Completed masters | 5.8% | 16.8% | 11.5% |
| Completed professional degree | 1.2% | 4.6% | 3.3% |
| Completed doctorate | 0.3% | 1.7% | 1.3% |
There are a total of 30 public schools, 14 private schools and 5 post-secondary schools in Waterbury. Using the proficiency score averages, the average test scores for Waterbury, CT schools is 29%. The average student to teacher ratio is 15:1. In Waterbury, CT, an average of 76.9% of students have completed 8th grade and an average of 74.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cheshire Village, CT | 6,491 | 78% | 62.0% |
| Newtown, CT | 1,921 | 71% | 48.8% |
| Plantsville, CT | 1,923 | 70% | 44.8% |
| West Hartford, CT | 63,023 | 68% | 40.9% |
| Litchfield, CT | 1,279 | 67% | 39.4% |
| Waterbury, CT | 107,841 | 29% | 38.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Meridian, ID | 107,787 | 59% | 23.3% |
| Lewisville, TX | 107,740 | 40% | 15.7% |
| Hillsboro, OR | 108,026 | 45% | 6.4% |
| Sandy Springs, GA | 108,180 | 30% | 37.5% |
| Greeley, CO | 107,445 | 28% | 41.1% |
| Waterbury, CT | 107,841 | 29% | 38.8% |
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