| Index | Shelton | Connecticut | National |
| Average Test Scores | 67% | 53% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 11 | 654 | 79,221 |
| Total private schools | 1 | 207 | 24,874 |
| Total post-secondary schools | 1 | 81 | 7,963 |
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| Index | Shelton | Connecticut | National |
| Completed 8th grade | 91.8% | 88.0% | 84.3% |
| Completed high school | 91.2% | 86.9% | 83.0% |
| Completed some college | 65.0% | 62.9% | 59.4% |
| Completed associate degree | 48.4% | 45.5% | 38.5% |
| Completed bachelors | 40.2% | 38.0% | 30.3% |
| Completed masters | 16.7% | 16.8% | 11.5% |
| Completed professional degree | 4.1% | 4.6% | 3.3% |
| Completed doctorate | 1.6% | 1.7% | 1.3% |
There are a total of 11 public schools, 1 private schools and 1 post-secondary schools in Shelton. Using the proficiency score averages, the average test scores for Shelton, CT schools is 67%. The average student to teacher ratio is 15:1. In Shelton, CT, an average of 91.8% of students have completed 8th grade and an average of 91.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Westport, CT | 28,385 | 84% | 75.7% |
| Trumbull, CT | 37,754 | 79% | 64.0% |
| Cheshire Village, CT | 6,632 | 78% | 62.0% |
| Southport, CT | 1,747 | 77% | 60.4% |
| Orange, CT | 14,220 | 75% | 55.7% |
| Shelton, CT | 42,033 | 67% | 39.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Hickory, NC | 42,059 | 47% | 1.6% |
| Wilkes-Barre, PA | 41,994 | 34% | 29.7% |
| Lancaster, OH | 41,994 | 61% | 28.0% |
| Hutchinson, KS | 42,073 | 28% | 41.4% |
| Weslaco, TX | 42,136 | 46% | 4.0% |
| Shelton, CT | 42,033 | 67% | 39.1% |
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