| Index | Oakdale | New York | National |
| Average Test Scores | 61% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 2 | 4,060 | 79,221 |
| Total private schools | n/a | 1,092 | 24,874 |
| Total post-secondary schools | 1 | 483 | 7,963 |

| Index | Oakdale | New York | National |
| Completed 8th grade | 93.6% | 83.5% | 84.3% |
| Completed high school | 93.1% | 82.1% | 83.0% |
| Completed some college | 71.4% | 59.5% | 59.4% |
| Completed associate degree | 43.5% | 43.4% | 38.5% |
| Completed bachelors | 34.1% | 34.7% | 30.3% |
| Completed masters | 18.4% | 15.1% | 11.5% |
| Completed professional degree | 2.8% | 4.2% | 3.3% |
| Completed doctorate | 0.7% | 1.5% | 1.3% |
There are a total of 2 public schools, n/a private schools and 1 post-secondary schools in Oakdale. Using the proficiency score averages, the average test scores for Oakdale, NY schools is 61%. The average student to teacher ratio is n/a. In Oakdale, NY, an average of 93.6% of students have completed 8th grade and an average of 93.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| West Sayville, NY | 5,133 | 82% | 69.8% |
| Hauppauge, NY | 20,417 | 80% | 66.3% |
| Setauket-East Setauket, NY | 14,614 | 80% | 65.6% |
| Elwood, NY | 11,955 | 79% | 63.5% |
| Greenlawn, NY | 15,169 | 78% | 62.8% |
| Oakdale, NY | 7,188 | 61% | 27.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Old Greenwich, CT | 7,189 | 87% | 80.2% |
| Pelham, NY | 7,190 | 77% | 59.5% |
| Souderton, PA | 7,184 | 71% | 47.6% |
| Pinehurst, MA | 7,184 | 54% | 11.5% |
| Huntingdon, PA | 7,182 | 42% | 12.8% |
| Oakdale, NY | 7,188 | 61% | 27.1% |