| Index | Columbus Junction | Iowa | National |
| Average Test Scores | 52% | 69% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |


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| Index | Columbus Junction | Iowa | National |
| Completed 8th grade | 72.4% | 89.2% | 84.3% |
| Completed high school | 68.8% | 87.7% | 83.0% |
| Completed some college | 36.1% | 59.8% | 59.4% |
| Completed associate degree | 18.5% | 38.4% | 38.5% |
| Completed bachelors | 10.8% | 27.2% | 30.3% |
| Completed masters | 4.6% | 8.7% | 11.5% |
| Completed professional degree | 0.9% | 2.7% | 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 Columbus Junction. Using the proficiency score averages, the average test scores for Columbus Junction, IA schools is 52%. The average student to teacher ratio is n/a. In Columbus Junction, IA, an average of 72.4% of students have completed 8th grade and an average of 68.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Morning Sun, IA | 742 | 75% | 56.3% |
| Letts, IA | 347 | 72% | 50.7% |
| Winfield, IA | 1,070 | 66% | 37.0% |
| Riverside, IA | 1,041 | 66% | 36.5% |
| Crawfordsville, IA | 343 | 62% | 29.2% |
| Columbus Junction, IA | 2,317 | 52% | 8.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Jamestown, KY | 2,317 | 49% | 2.1% |
| Caldwell, OH | 2,317 | 40% | 17.2% |
| Cedar Grove, WI | 2,318 | 52% | 8.0% |
| Demorest, GA | 2,318 | 55% | 14.2% |
| Spring City, TN | 2,316 | 37% | 22.9% |
| Columbus Junction, IA | 2,317 | 52% | 8.7% |