| Index | Sibley | Iowa | National |
| Average Test Scores | 71% | 69% | 48% |
| Student/Teacher ratio | 15:1 | 13:1 | 16:1 |
| Total public schools | 3 | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |

| Index | Sibley | Iowa | National |
| Completed 8th grade | 85.0% | 89.2% | 84.3% |
| Completed high school | 82.3% | 87.7% | 83.0% |
| Completed some college | 49.2% | 59.8% | 59.4% |
| Completed associate degree | 29.3% | 38.4% | 38.5% |
| Completed bachelors | 20.3% | 27.2% | 30.3% |
| Completed masters | 6.3% | 8.7% | 11.5% |
| Completed professional degree | 1.0% | 2.7% | 3.3% |
| Completed doctorate | 0.2% | 1.1% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Sibley. Using the proficiency score averages, the average test scores for Sibley, IA schools is 71%. The average student to teacher ratio is 15:1. In Sibley, IA, an average of 85.0% of students have completed 8th grade and an average of 82.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Boyden, IA | 928 | 80% | 65.6% |
| George, IA | 1,040 | 78% | 61.5% |
| Little Rock, IA | 467 | 61% | 27.1% |
| Ellsworth, MN | 532 | 55% | 14.6% |
| Sibley, IA | 2,652 | 71% | 48.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Lake Providence, LA | 2,652 | 42% | 13.2% |
| Malakoff, TX | 2,652 | 59% | 23.3% |
| Owensville, MO | 2,652 | 43% | 9.7% |
| Weatherly, PA | 2,652 | 63% | 31.3% |
| Winters, TX | 2,652 | 34% | 28.8% |
| Sibley, IA | 2,652 | 71% | 48.3% |