| Index | Preston | Idaho | National |
| Average Test Scores | 46% | 47% | 48% |
| Student/Teacher ratio | 19:1 | 17:1 | 16:1 |
| Total public schools | 5 | 446 | 79,221 |
| Total private schools | n/a | 83 | 24,874 |
| Total post-secondary schools | n/a | 34 | 7,963 |
| Index | Preston | Idaho | National |
| Completed 8th grade | 85.2% | 85.7% | 84.3% |
| Completed high school | 84.7% | 84.8% | 83.0% |
| Completed some college | 51.0% | 62.4% | 59.4% |
| Completed associate degree | 24.2% | 35.6% | 38.5% |
| Completed bachelors | 18.1% | 26.2% | 30.3% |
| Completed masters | 5.1% | 8.4% | 11.5% |
| Completed professional degree | 2.4% | 2.6% | 3.3% |
| Completed doctorate | 1.3% | 1.1% | 1.3% |
There are a total of 5 public schools, n/a private schools and n/a post-secondary schools in Preston. Using the proficiency score averages, the average test scores for Preston, ID schools is 46%. The average student to teacher ratio is 19:1. In Preston, ID, an average of 85.2% of students have completed 8th grade and an average of 84.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dayton, ID | 546 | 67% | 39.9% |
| Lewiston, UT | 2,091 | 65% | 35.4% |
| Richmond, UT | 2,733 | 61% | 27.6% |
| Preston, ID | 5,477 | 46% | 4.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Charleston, MO | 5,478 | 21% | 57.3% |
| Cameron, TX | 5,476 | 40% | 17.4% |
| Somerdale, NJ | 5,479 | 35% | 28.1% |
| New Holland, PA | 5,479 | 62% | 28.1% |
| Chadron, NE | 5,482 | 57% | 19.5% |
| Preston, ID | 5,477 | 46% | 4.7% |
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