| Index | Declo | Idaho | National |
| Average Test Scores | 40% | 42% | 49% |
| 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 40%. 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, State | Population | Avg. Test Scores | National Avg. |
| Albion, ID | 315 | 50% | 2% |
| Paul, ID | 1,367 | 39% | 22% |
| Rupert, ID | 5,702 | 38% | 23% |
| Malta, ID | 252 | 35% | 30% |
| Burley, ID | 10,382 | 32% | 35% |
| Declo, ID | 510 | 40% | 19% |
| City, State | Population | Avg. Test Scores | National Avg. |
| Moran, KS | 510 | 36% | 27% |
| Nortonville, KS | 510 | 51% | 3% |
| Gary City, TX | 510 | 81% | 65% |
| Jeffersonville, IL | 511 | 22% | 55% |
| Bonanza, OR | 509 | 33% | 32% |
| Declo, ID | 510 | 40% | 19% |
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