| Index | Hartland | Wisconsin | National |
| Average Test Scores | 69% | 41% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 6 | 1,869 | 79,221 |
| Total private schools | 5 | 872 | 24,874 |
| Total post-secondary schools | n/a | 114 | 7,963 |
| Index | Hartland | Wisconsin | National |
| Completed 8th grade | 92.0% | 89.0% | 84.3% |
| Completed high school | 91.4% | 87.8% | 83.0% |
| Completed some college | 71.6% | 59.7% | 59.4% |
| Completed associate degree | 46.9% | 38.7% | 38.5% |
| Completed bachelors | 37.9% | 28.4% | 30.3% |
| Completed masters | 13.7% | 9.6% | 11.5% |
| Completed professional degree | 3.6% | 2.7% | 3.3% |
| Completed doctorate | 1.4% | 1.1% | 1.3% |
There are a total of 6 public schools, 5 private schools and n/a post-secondary schools in Hartland. Using the proficiency score averages, the average test scores for Hartland, WI schools is 69%. The average student to teacher ratio is 15:1. In Hartland, WI, an average of 92.0% of students have completed 8th grade and an average of 91.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lannon, WI | 1,184 | 75% | 55.2% |
| Sullivan, WI | 710 | 72% | 50.0% |
| North Prairie, WI | 2,542 | 72% | 49.0% |
| Merton, WI | 3,721 | 72% | 49.0% |
| Elm Grove, WI | 6,156 | 69% | 44.3% |
| Hartland, WI | 9,317 | 69% | 44.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Flossmoor, IL | 9,318 | 45% | 7.3% |
| Eagle Point, OR | 9,316 | 43% | 10.9% |
| Sellersburg, IN | 9,320 | 51% | 6.5% |
| Hondo, TX | 9,321 | 41% | 13.9% |
| College Place, WA | 9,311 | 49% | 2.1% |
| Hartland, WI | 9,317 | 69% | 44.0% |
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