| Index | Winfield | Missouri | National |
| Average Test Scores | 33% | 44% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Winfield | Missouri | National |
| Completed 8th grade | 80.7% | 86.0% | 84.3% |
| Completed high school | 79.9% | 84.2% | 83.0% |
| Completed some college | 39.0% | 57.7% | 59.4% |
| Completed associate degree | 20.3% | 35.2% | 38.5% |
| Completed bachelors | 10.6% | 27.6% | 30.3% |
| Completed masters | 4.5% | 10.4% | 11.5% |
| Completed professional degree | 0.3% | 2.8% | 3.3% |
| Completed doctorate | 0.3% | 1.2% | 1.3% |
There are a total of n/a 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, MO schools is 33%. The average student to teacher ratio is n/a. In Winfield, MO, an average of 80.7% of students have completed 8th grade and an average of 79.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lake St. Louis, MO | 16,357 | 71% | 48.4% |
| St. Peters, MO | 57,536 | 63% | 31.5% |
| O'Fallon, MO | 88,132 | 61% | 27.1% |
| Wentzville, MO | 40,407 | 58% | 20.1% |
| St. Charles, MO | 70,650 | 55% | 15.4% |
| Winfield, MO | 1,954 | 33% | 31.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Huachuca City, AZ | 1,954 | 24% | 51.0% |
| Weedsport, NY | 1,954 | 55% | 13.5% |
| Slayton, MN | 1,953 | 62% | 28.1% |
| Geneva, NE | 1,955 | 63% | 31.6% |
| Gila Bend, AZ | 1,955 | 20% | 57.6% |
| Winfield, MO | 1,954 | 33% | 31.6% |
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