| Index | Sinai | South Dakota | National |
| Average Test Scores | n/a | 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 | Sinai | South Dakota | National |
| Completed 8th grade | 93.8% | 89.1% | 84.3% |
| Completed high school | 87.7% | 86.8% | 83.0% |
| Completed some college | 60.0% | 60.4% | 59.4% |
| Completed associate degree | 43.1% | 38.5% | 38.5% |
| Completed bachelors | 26.2% | 27.5% | 30.3% |
| Completed masters | 9.2% | 8.1% | 11.5% |
| Completed professional degree | 3.1% | 2.5% | 3.3% |
| Completed doctorate | 3.1% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Sinai. Using the proficiency score averages, the average test scores for Sinai, SD schools is n/a. The average student to teacher ratio is n/a. In Sinai, SD, an average of 93.8% of students have completed 8th grade and an average of 87.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Arlington, SD | 1,007 | 57% | 19.5% |
| Volga, SD | 1,948 | 56% | 17.4% |
| Brookings, SD | 24,479 | 51% | 5.6% |
| Ramona, SD | 413 | 42% | 13.2% |
| Sinai, SD | 166 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Yoder, WY | 166 | 72% | 49.0% |
| Bethune, CO | 166 | 25% | 47.9% |
| Campbell, MN | 166 | 43% | 11.5% |
| Graham, MO | 166 | 35% | 27.1% |
| Orchard, TX | 166 | 37% | 22.9% |
| Sinai, SD | 166 | n/a |
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