| 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 | 501 | 67% | 39.6% |
| Lewiston, UT | 2,077 | 65% | 35.1% |
| Richmond, UT | 2,546 | 61% | 27.3% |
| Preston, ID | 5,252 | 46% | 4.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Mount Arlington, NJ | 5,251 | 66% | 36.1% |
| Bluefield, VA | 5,254 | 85% | 75.6% |
| Nelsonville, OH | 5,249 | 45% | 7.5% |
| Deale, MD | 5,256 | 57% | 18.5% |
| Grosse Pointe, MI | 5,256 | 80% | 65.2% |
| Preston, ID | 5,252 | 46% | 4.9% |
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