| Index | Iroquois | South Dakota | National |
| Average Test Scores | 40% | 48% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 340 | 79,221 |
| Total private schools | n/a | 76 | 24,874 |
| Total post-secondary schools | n/a | 25 | 7,963 |
| Index | Iroquois | South Dakota | National |
| Completed 8th grade | 85.2% | 89.1% | 84.3% |
| Completed high school | 85.2% | 86.8% | 83.0% |
| Completed some college | 52.5% | 60.4% | 59.4% |
| Completed associate degree | 25.7% | 38.5% | 38.5% |
| Completed bachelors | 13.1% | 27.5% | 30.3% |
| Completed masters | 4.9% | 8.1% | 11.5% |
| Completed professional degree | 0.5% | 2.5% | 3.3% |
| Completed doctorate | 0.5% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Iroquois. Using the proficiency score averages, the average test scores for Iroquois, SD schools is 40%. The average student to teacher ratio is n/a. In Iroquois, SD, an average of 85.2% of students have completed 8th grade and an average of 85.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| De Smet, SD | 1,041 | 61% | 26.4% |
| Iroquois, SD | 378 | 40% | 16.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Minford, OH | 378 | 65% | 35.1% |
| Akron, MI | 378 | 50% | 3.1% |
| Blue Eye, MO | 378 | 48% | = 100 |
| Annapolis, MO | 378 | 35% | 28.1% |
| Newsoms, VA | 378 | 75% | 55.2% |
| Iroquois, SD | 378 | 40% | 16.7% |
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