| Index | Heron Lake | Minnesota | National |
| Average Test Scores | 50% | 52% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 2,224 | 79,221 |
| Total private schools | n/a | 477 | 24,874 |
| Total post-secondary schools | n/a | 140 | 7,963 |
| Index | Heron Lake | Minnesota | National |
| Completed 8th grade | 89.8% | 90.5% | 84.3% |
| Completed high school | 88.5% | 89.5% | 83.0% |
| Completed some college | 57.3% | 66.9% | 59.4% |
| Completed associate degree | 29.6% | 45.2% | 38.5% |
| Completed bachelors | 19.5% | 34.2% | 30.3% |
| Completed masters | 3.5% | 11.5% | 11.5% |
| Completed professional degree | 0.0% | 3.5% | 3.3% |
| Completed doctorate | 0.0% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Heron Lake. Using the proficiency score averages, the average test scores for Heron Lake, MN schools is 50%. The average student to teacher ratio is n/a. In Heron Lake, MN, an average of 89.8% of students have completed 8th grade and an average of 88.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Fulda, MN | 1,314 | 56% | 16.1% |
| Lakefield, MN | 1,683 | 54% | 11.5% |
| Windom, MN | 4,423 | 45% | 6.9% |
| Brewster, MN | 550 | 41% | 15.1% |
| Worthington, MN | 13,093 | 38% | 21.9% |
| Heron Lake, MN | 701 | 50% | 3.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Evarts, KY | 701 | 53% | 9.4% |
| Wheatfield, IN | 701 | 53% | 10.7% |
| Grantsville, MD | 701 | 37% | 22.9% |
| Elmwood, NE | 701 | 77% | 60.4% |
| Cherry Valley, AR | 702 | 53% | 10.9% |
| Heron Lake, MN | 701 | 50% | 3.1% |
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