| Index | Williams | Iowa | National |
| Average Test Scores | n/a | 69% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Williams | Iowa | National |
| Completed 8th grade | 94.1% | 89.2% | 84.3% |
| Completed high school | 93.0% | 87.7% | 83.0% |
| Completed some college | 50.0% | 59.8% | 59.4% |
| Completed associate degree | 27.9% | 38.4% | 38.5% |
| Completed bachelors | 15.4% | 27.2% | 30.3% |
| Completed masters | 1.5% | 8.7% | 11.5% |
| Completed professional degree | 1.1% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Williams. Using the proficiency score averages, the average test scores for Williams, IA schools is n/a. The average student to teacher ratio is n/a. In Williams, IA, an average of 94.1% of students have completed 8th grade and an average of 93.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Jewell Junction, IA | 1,346 | 80% | 65.6% |
| Radcliffe, IA | 596 | 80% | 65.6% |
| Iowa Falls, IA | 5,067 | 73% | 51.7% |
| Blairsburg, IA | 149 | 70% | 45.8% |
| Alden, IA | 810 | 70% | 44.8% |
| Williams, IA | 327 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Irwin, IA | 327 | 80% | 66.7% |
| Commodore, PA | 327 | 49% | 1.0% |
| Camp Sherman, OR | 327 | 50% | 4.2% |
| Mentone, AL | 327 | 70% | 45.8% |
| Taloga, OK | 327 | 45% | 6.3% |
| Williams, IA | 327 | n/a |
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