| Index | Declo | Idaho | National |
| Average Test Scores | 48% | 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 | Declo | Idaho | National |
| Completed 8th grade | 80.3% | 85.7% | 84.3% |
| Completed high school | 75.0% | 84.8% | 83.0% |
| Completed some college | 65.9% | 62.4% | 59.4% |
| Completed associate degree | 25.8% | 35.6% | 38.5% |
| Completed bachelors | 15.9% | 26.2% | 30.3% |
| Completed masters | 6.1% | 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 Declo. Using the proficiency score averages, the average test scores for Declo, ID schools is 48%. The average student to teacher ratio is n/a. In Declo, ID, an average of 80.3% of students have completed 8th grade and an average of 75.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Albion, ID | 422 | 60% | 25.0% |
| Malta, ID | 360 | 41% | 15.1% |
| Paul, ID | 1,543 | 41% | 15.6% |
| Rupert, ID | 5,820 | 39% | 18.2% |
| Burley, ID | 10,476 | 34% | 29.6% |
| Declo, ID | 471 | 48% | 1.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Sedalia, NC | 471 | 36% | 26.0% |
| Ashley, IL | 471 | 25% | 49.0% |
| Fowler, KS | 471 | 33% | 32.3% |
| Forman, ND | 471 | 43% | 11.5% |
| Reardan, WA | 471 | 58% | 21.4% |
| Declo, ID | 471 | 48% | 1.0% |
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