| Index | Spencer | 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 | Spencer | Idaho | National |
| Completed 8th grade | 96.7% | 85.7% | 84.3% |
| Completed high school | 96.7% | 84.8% | 83.0% |
| Completed some college | 56.7% | 62.4% | 59.4% |
| Completed associate degree | 33.3% | 35.6% | 38.5% |
| Completed bachelors | 16.7% | 26.2% | 30.3% |
| Completed masters | 0.0% | 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 Spencer. Using the proficiency score averages, the average test scores for Spencer, ID schools is n/a. The average student to teacher ratio is n/a. In Spencer, ID, an average of 96.7% of students have completed 8th grade and an average of 96.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dubois, ID | 619 | 26% | 45.3% |
| Spencer, ID | 13 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Hyder, AK | 12 | 50% | 4.2% |
| Scott, AR | 15 | 30% | 38.5% |
| Weston, CO | 16 | 45% | 6.3% |
| Blanchard, ND | 10 | 50% | 4.2% |
| San Antonio, NM | 9 | 25% | 47.9% |
| Spencer, ID | 13 | n/a |
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