| Index | Colfax | Iowa | National |
| Average Test Scores | 60% | 69% | 48% |
| Student/Teacher ratio | 12:1 | 13:1 | 16:1 |
| Total public schools | 2 | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Colfax | Iowa | National |
| Completed 8th grade | 87.5% | 89.2% | 84.3% |
| Completed high school | 86.7% | 87.7% | 83.0% |
| Completed some college | 48.5% | 59.8% | 59.4% |
| Completed associate degree | 27.0% | 38.4% | 38.5% |
| Completed bachelors | 20.6% | 27.2% | 30.3% |
| Completed masters | 4.2% | 8.7% | 11.5% |
| Completed professional degree | 1.0% | 2.7% | 3.3% |
| Completed doctorate | 0.6% | 1.1% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Colfax. Using the proficiency score averages, the average test scores for Colfax, IA schools is 60%. The average student to teacher ratio is 12:1. In Colfax, IA, an average of 87.5% of students have completed 8th grade and an average of 86.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Mitchellville, IA | 2,382 | 94% | 94.8% |
| Runnells, IA | 485 | 87% | 81.3% |
| Altoona, IA | 18,917 | 79% | 63.8% |
| Monroe, IA | 1,810 | 78% | 63.0% |
| Baxter, IA | 935 | 77% | 60.4% |
| Colfax, IA | 1,886 | 60% | 24.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Memphis, MO | 1,886 | 48% | 0.5% |
| Carlin, NV | 1,885 | 34% | 29.2% |
| Kualapuu, HI | 1,887 | 28% | 42.7% |
| Mill City, OR | 1,885 | 37% | 22.2% |
| Jasonville, IN | 1,885 | 44% | 7.8% |
| Colfax, IA | 1,886 | 60% | 24.5% |
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