| Index | Koontz Lake | Indiana | National |
| Average Test Scores | n/a | 46% | 48% |
| Student/Teacher ratio | n/a | 22:1 | 16:1 |
| Total public schools | n/a | 1,755 | 79,221 |
| Total private schools | n/a | 675 | 24,874 |
| Total post-secondary schools | n/a | 141 | 7,963 |
| Index | Koontz Lake | Indiana | National |
| Completed 8th grade | 76.9% | 84.6% | 84.3% |
| Completed high school | 76.3% | 82.9% | 83.0% |
| Completed some college | 50.3% | 53.8% | 59.4% |
| Completed associate degree | 27.0% | 33.0% | 38.5% |
| Completed bachelors | 18.4% | 24.6% | 30.3% |
| Completed masters | 4.9% | 8.9% | 11.5% |
| Completed professional degree | 1.9% | 2.4% | 3.3% |
| Completed doctorate | 0.7% | 1.0% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Koontz Lake. Using the proficiency score averages, the average test scores for Koontz Lake, IN schools is n/a. The average student to teacher ratio is n/a. In Koontz Lake, IN, an average of 76.9% of students have completed 8th grade and an average of 76.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| North Liberty, IN | 1,822 | 65% | 34.4% |
| Walkerton, IN | 2,344 | 57% | 18.8% |
| Kingsford Heights, IN | 1,381 | 57% | 18.8% |
| Argos, IN | 1,799 | 57% | 18.8% |
| La Porte, IN | 21,328 | 49% | 2.7% |
| Koontz Lake, IN | 1,368 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Sutton, NE | 1,368 | 56% | 16.1% |
| Avoca, IA | 1,368 | 77% | 61.1% |
| Goodman, MS | 1,368 | 30% | 38.5% |
| Crescent, OK | 1,368 | 27% | 43.4% |
| Mansfield Center, CT | 1,367 | 71% | 47.4% |
| Koontz Lake, IN | 1,368 | n/a |
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