| Index | Watertown | Minnesota | National |
| Average Test Scores | 62% | 52% | 48% |
| Student/Teacher ratio | 18:1 | 16:1 | 16:1 |
| Total public schools | 3 | 2,224 | 79,221 |
| Total private schools | 1 | 477 | 24,874 |
| Total post-secondary schools | n/a | 140 | 7,963 |
| Index | Watertown | Minnesota | National |
| Completed 8th grade | 91.1% | 90.5% | 84.3% |
| Completed high school | 87.8% | 89.5% | 83.0% |
| Completed some college | 64.5% | 66.9% | 59.4% |
| Completed associate degree | 35.2% | 45.2% | 38.5% |
| Completed bachelors | 26.3% | 34.2% | 30.3% |
| Completed masters | 7.6% | 11.5% | 11.5% |
| Completed professional degree | 0.7% | 3.5% | 3.3% |
| Completed doctorate | 0.0% | 1.4% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Watertown. Using the proficiency score averages, the average test scores for Watertown, MN schools is 62%. The average student to teacher ratio is 18:1. In Watertown, MN, an average of 91.1% of students have completed 8th grade and an average of 87.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Mound, MN | 9,498 | 81% | 68.2% |
| Hanover, MN | 3,414 | 81% | 67.7% |
| Excelsior, MN | 2,414 | 80% | 67.4% |
| Delano, MN | 6,167 | 80% | 66.7% |
| Long Lake, MN | 1,779 | 77% | 59.7% |
| Watertown, MN | 4,473 | 62% | 28.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Viroqua, WI | 4,472 | 46% | 5.0% |
| Sherman, IL | 4,470 | 67% | 38.5% |
| Berwick, LA | 4,478 | 82% | 71.2% |
| Sauk Centre, MN | 4,466 | 58% | 20.1% |
| Sayre, OK | 4,480 | 28% | 41.7% |
| Watertown, MN | 4,473 | 62% | 28.8% |
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