| Index | Norwalk | Connecticut | National |
| Average Test Scores | 48% | 53% | 48% |
| Student/Teacher ratio | 14:1 | 14:1 | 16:1 |
| Total public schools | 20 | 654 | 79,221 |
| Total private schools | 3 | 207 | 24,874 |
| Total post-secondary schools | 2 | 81 | 7,963 |


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| Index | Norwalk | Connecticut | National |
| Completed 8th grade | 87.6% | 88.0% | 84.3% |
| Completed high school | 86.3% | 86.9% | 83.0% |
| Completed some college | 65.3% | 62.9% | 59.4% |
| Completed associate degree | 48.2% | 45.5% | 38.5% |
| Completed bachelors | 41.6% | 38.0% | 30.3% |
| Completed masters | 16.8% | 16.8% | 11.5% |
| Completed professional degree | 4.4% | 4.6% | 3.3% |
| Completed doctorate | 1.0% | 1.7% | 1.3% |
There are a total of 20 public schools, 3 private schools and 2 post-secondary schools in Norwalk. Using the proficiency score averages, the average test scores for Norwalk, CT schools is 48%. The average student to teacher ratio is 14:1. In Norwalk, CT, an average of 87.6% of students have completed 8th grade and an average of 86.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Old Greenwich, CT | 6,980 | 87% | 80.2% |
| Riverside, CT | 8,855 | 86% | 78.6% |
| Darien, CT | 21,519 | 85% | 76.9% |
| Westport, CT | 27,511 | 84% | 75.7% |
| Locust Valley, NY | 3,485 | 84% | 75.3% |
| Norwalk, CT | 88,755 | 48% | 0.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Nashua, NH | 89,052 | 51% | 5.8% |
| Conroe, TX | 88,369 | 46% | 4.0% |
| Chino, CA | 89,170 | 39% | 18.3% |
| Reading, PA | 88,333 | 31% | 35.8% |
| Newton, MA | 88,322 | 73% | 52.5% |
| Norwalk, CT | 88,755 | 48% | 0.5% |