| Index | Gayville | South Dakota | National |
| Average Test Scores | 35% | 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 | Gayville | South Dakota | National |
| Completed 8th grade | 92.5% | 89.1% | 84.3% |
| Completed high school | 91.3% | 86.8% | 83.0% |
| Completed some college | 55.8% | 60.4% | 59.4% |
| Completed associate degree | 36.6% | 38.5% | 38.5% |
| Completed bachelors | 23.0% | 27.5% | 30.3% |
| Completed masters | 7.5% | 8.1% | 11.5% |
| Completed professional degree | 1.9% | 2.5% | 3.3% |
| Completed doctorate | 0.8% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Gayville. Using the proficiency score averages, the average test scores for Gayville, SD schools is 35%. The average student to teacher ratio is n/a. In Gayville, SD, an average of 92.5% of students have completed 8th grade and an average of 91.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Vermillion, SD | 10,852 | 59% | 23.3% |
| Irene, SD | 549 | 55% | 14.6% |
| Yankton, SD | 14,619 | 53% | 10.9% |
| Wynot, NE | 252 | 52% | 7.6% |
| Wakonda, SD | 267 | 45% | 7.3% |
| Gayville, SD | 374 | 35% | 27.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Herndon, PA | 374 | 60% | 24.5% |
| Potter Valley, CA | 374 | 28% | 41.3% |
| Sylvan Grove, KS | 374 | 17% | 64.6% |
| Marshall, IN | 374 | 42% | 13.5% |
| Mondamin, IA | 374 | 61% | 26.6% |
| Gayville, SD | 374 | 35% | 27.8% |
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