| Index | Post Lake | Wisconsin | National |
| Average Test Scores | n/a | 41% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,869 | 79,221 |
| Total private schools | n/a | 872 | 24,874 |
| Total post-secondary schools | n/a | 114 | 7,963 |
| Index | Post Lake | Wisconsin | National |
| Completed 8th grade | 84.8% | 89.0% | 84.3% |
| Completed high school | 83.8% | 87.8% | 83.0% |
| Completed some college | 43.4% | 59.7% | 59.4% |
| Completed associate degree | 26.9% | 38.7% | 38.5% |
| Completed bachelors | 16.9% | 28.4% | 30.3% |
| Completed masters | 7.6% | 9.6% | 11.5% |
| Completed professional degree | 4.1% | 2.7% | 3.3% |
| Completed doctorate | 1.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Post Lake. Using the proficiency score averages, the average test scores for Post Lake, WI schools is n/a. The average student to teacher ratio is n/a. In Post Lake, WI, an average of 84.8% of students have completed 8th grade and an average of 83.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Crandon, WI | 1,735 | 31% | 34.7% |
| Elcho, WI | 265 | 23% | 51.7% |
| Post Lake, WI | 255 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Whittier, AK | 255 | 30% | 37.5% |
| Newfields, NH | 254 | 55% | 14.6% |
| Hammond, NY | 254 | 50% | 3.1% |
| Barnard, MO | 254 | 55% | 14.6% |
| Oakland, KY | 254 | 30% | 38.5% |
| Post Lake, WI | 255 | n/a |
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