| Index | Williamsfield | Illinois | National |
| Average Test Scores | 44% | 33% | 48% |
| Student/Teacher ratio | n/a | 18:1 | 16:1 |
| Total public schools | n/a | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Williamsfield | Illinois | National |
| Completed 8th grade | 86.5% | 86.2% | 84.3% |
| Completed high school | 85.3% | 84.7% | 83.0% |
| Completed some college | 51.9% | 61.8% | 59.4% |
| Completed associate degree | 26.5% | 40.7% | 38.5% |
| Completed bachelors | 17.9% | 32.9% | 30.3% |
| Completed masters | 8.6% | 12.7% | 11.5% |
| Completed professional degree | 1.4% | 3.4% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Williamsfield. Using the proficiency score averages, the average test scores for Williamsfield, IL schools is 44%. The average student to teacher ratio is n/a. In Williamsfield, IL, an average of 86.5% of students have completed 8th grade and an average of 85.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Elmwood, IL | 2,575 | 51% | 5.9% |
| Brimfield, IL | 829 | 50% | 4.7% |
| Princeville, IL | 1,741 | 47% | 3.1% |
| London Mills, IL | 334 | 38% | 20.5% |
| Oneida, IL | 805 | 36% | 25.5% |
| Williamsfield, IL | 526 | 44% | 8.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Maynard, IA | 526 | 70% | 45.3% |
| Selby, SD | 526 | 52% | 7.6% |
| Olpe, KS | 526 | 53% | 10.9% |
| Mercer, WI | 526 | 40% | 17.7% |
| Kimball, SD | 526 | 57% | 18.2% |
| Williamsfield, IL | 526 | 44% | 8.3% |
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