| Index | Barnum | Minnesota | National |
| Average Test Scores | 66% | 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 | Barnum | Minnesota | National |
| Completed 8th grade | 83.9% | 90.5% | 84.3% |
| Completed high school | 81.1% | 89.5% | 83.0% |
| Completed some college | 57.3% | 66.9% | 59.4% |
| Completed associate degree | 32.8% | 45.2% | 38.5% |
| Completed bachelors | 20.3% | 34.2% | 30.3% |
| Completed masters | 4.0% | 11.5% | 11.5% |
| Completed professional degree | 0.7% | 3.5% | 3.3% |
| Completed doctorate | 0.2% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Barnum. Using the proficiency score averages, the average test scores for Barnum, MN schools is 66%. The average student to teacher ratio is n/a. In Barnum, MN, an average of 83.9% of students have completed 8th grade and an average of 81.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Moose Lake, MN | 2,900 | 56% | 15.6% |
| Carlton, MN | 1,039 | 55% | 13.5% |
| Cromwell, MN | 370 | 53% | 10.9% |
| Willow River, MN | 383 | 50% | 3.1% |
| Wrenshall, MN | 476 | 47% | 2.1% |
| Barnum, MN | 630 | 66% | 37.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Ider, AL | 630 | 44% | 8.3% |
| Silverton, CO | 630 | 50% | 4.2% |
| St. Edward, NE | 630 | 38% | 21.9% |
| Red Oak, OK | 629 | 39% | 19.8% |
| Leeton, MO | 629 | 56% | 16.0% |
| Barnum, MN | 630 | 66% | 37.5% |
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