| Index | Plainville | Kansas | National |
| Average Test Scores | 32% | 35% | 48% |
| Student/Teacher ratio | 13:1 | 14:1 | 16:1 |
| Total public schools | 2 | 970 | 79,221 |
| Total private schools | 1 | 190 | 24,874 |
| Total post-secondary schools | n/a | 86 | 7,963 |

| Index | Plainville | Kansas | National |
| Completed 8th grade | 89.7% | 87.4% | 84.3% |
| Completed high school | 88.2% | 86.1% | 83.0% |
| Completed some college | 56.0% | 63.7% | 59.4% |
| Completed associate degree | 31.7% | 39.8% | 38.5% |
| Completed bachelors | 21.3% | 31.6% | 30.3% |
| Completed masters | 8.9% | 11.4% | 11.5% |
| Completed professional degree | 0.0% | 3.0% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 2 public schools, 1 private schools and n/a post-secondary schools in Plainville. Using the proficiency score averages, the average test scores for Plainville, KS schools is 32%. The average student to teacher ratio is 13:1. In Plainville, KS, an average of 89.7% of students have completed 8th grade and an average of 88.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Palco, KS | 133 | 30% | 37.5% |
| Natoma, KS | 440 | 30% | 37.5% |
| Stockton, KS | 1,714 | 16% | 66.7% |
| Plainville, KS | 1,721 | 32% | 33.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Coleraine, MN | 1,721 | 55% | 13.9% |
| Lake Como, NJ | 1,721 | 16% | 66.7% |
| Wakefield, MI | 1,720 | 35% | 28.1% |
| Cedar Bluff, AL | 1,720 | 53% | 9.4% |
| Weldon, NC | 1,722 | 27% | 44.8% |
| Plainville, KS | 1,721 | 32% | 33.3% |