| Index | Winfield | Iowa | National |
| Average Test Scores | 66% | 69% | 48% |
| Student/Teacher ratio | 9:1 | 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 | Winfield | Iowa | National |
| Completed 8th grade | 90.5% | 89.2% | 84.3% |
| Completed high school | 88.1% | 87.7% | 83.0% |
| Completed some college | 57.5% | 59.8% | 59.4% |
| Completed associate degree | 35.3% | 38.4% | 38.5% |
| Completed bachelors | 20.2% | 27.2% | 30.3% |
| Completed masters | 2.9% | 8.7% | 11.5% |
| Completed professional degree | 0.0% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Winfield. Using the proficiency score averages, the average test scores for Winfield, IA schools is 66%. The average student to teacher ratio is 9:1. In Winfield, IA, an average of 90.5% of students have completed 8th grade and an average of 88.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Mediapolis, IA | 2,178 | 80% | 65.6% |
| Morning Sun, IA | 742 | 75% | 56.3% |
| Letts, IA | 347 | 72% | 50.7% |
| Wayland, IA | 1,188 | 67% | 39.6% |
| Mount Pleasant, IA | 8,795 | 65% | 34.9% |
| Winfield, IA | 1,070 | 66% | 37.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Sherburn, MN | 1,070 | 57% | 19.3% |
| Rio, WI | 1,070 | 36% | 25.5% |
| Manassa, CO | 1,070 | 50% | 3.1% |
| Harmony, MN | 1,070 | 50% | 3.1% |
| Ellerbe, NC | 1,069 | 40% | 16.1% |
| Winfield, IA | 1,070 | 66% | 37.0% |