| Index | Winchester | Idaho | National |
| Average Test Scores | n/a | 47% | 48% |
| Student/Teacher ratio | n/a | 17:1 | 16:1 |
| Total public schools | n/a | 446 | 79,221 |
| Total private schools | n/a | 83 | 24,874 |
| Total post-secondary schools | n/a | 34 | 7,963 |
| Index | Winchester | Idaho | National |
| Completed 8th grade | 81.9% | 85.7% | 84.3% |
| Completed high school | 77.5% | 84.8% | 83.0% |
| Completed some college | 49.8% | 62.4% | 59.4% |
| Completed associate degree | 15.9% | 35.6% | 38.5% |
| Completed bachelors | 10.1% | 26.2% | 30.3% |
| Completed masters | 1.3% | 8.4% | 11.5% |
| Completed professional degree | 0.0% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Winchester. Using the proficiency score averages, the average test scores for Winchester, ID schools is n/a. The average student to teacher ratio is n/a. In Winchester, ID, an average of 81.9% of students have completed 8th grade and an average of 77.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cottonwood, ID | 1,047 | 62% | 29.2% |
| Craigmont, ID | 515 | 37% | 22.9% |
| Culdesac, ID | 376 | 25% | 47.9% |
| Lapwai, ID | 1,291 | 25% | 49.0% |
| Winchester, ID | 236 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Thedford, NE | 236 | 40% | 16.7% |
| Koliganek, AK | 236 | 13% | 74.0% |
| Ruthton, MN | 236 | 60% | 24.0% |
| Grenora, ND | 236 | 49% | 1.0% |
| Fort Yates, ND | 237 | 10% | 80.2% |
| Winchester, ID | 236 | n/a |
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