| Index | Oakville | Connecticut | National |
| Average Test Scores | 50% | 47% | 49% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 3 | 654 | 79,221 |
| Total private schools | 1 | 207 | 24,874 |
| Total post-secondary schools | n/a | 81 | 7,963 |
| Index | Oakville | Connecticut | National |
| Completed 8th grade | 87.1% | 88.0% | 84.3% |
| Completed high school | 86.0% | 86.9% | 83.0% |
| Completed some college | 50.2% | 62.9% | 59.4% |
| Completed associate degree | 29.1% | 45.5% | 38.5% |
| Completed bachelors | 21.4% | 38.0% | 30.3% |
| Completed masters | 10.3% | 16.8% | 11.5% |
| Completed professional degree | 1.0% | 4.6% | 3.3% |
| Completed doctorate | 0.2% | 1.7% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Oakville. Using the proficiency score averages, the average test scores for Oakville, CT schools is 50%. The average student to teacher ratio is 15:1. In Oakville, CT, an average of 87.1% of students have completed 8th grade and an average of 86.0% have completed high school.
| City, State | Population | Avg. Test Scores | National Avg. |
| Northwest Harwinton, CT | 3,103 | 77% | 56% |
| Newtown, CT | 2,009 | 70% | 42% |
| Cheshire Village, CT | 6,103 | 67% | 37% |
| Bethlehem Village, CT | 1,852 | 62% | 26% |
| Litchfield, CT | 1,329 | 62% | 25% |
| Oakville, CT | 9,133 | 50% | 1% |
| City, State | Population | Avg. Test Scores | National Avg. |
| Shawano, WI | 9,130 | 41% | 16% |
| Milford, NH | 9,136 | 51% | 3% |
| Leonia, NJ | 9,137 | 60% | 21% |
| Taft, CA | 9,128 | 27% | 45% |
| Box Elder, SD | 9,126 | 44% | 11% |
| Oakville, CT | 9,133 | 50% | 1% |
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