| Index | Rio | Wisconsin | National |
| Average Test Scores | 36% | 41% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,869 | 79,221 |
| Total private schools | n/a | 872 | 24,874 |
| Total post-secondary schools | n/a | 114 | 7,963 |
| Index | Rio | Wisconsin | National |
| Completed 8th grade | 89.2% | 89.0% | 84.3% |
| Completed high school | 89.2% | 87.8% | 83.0% |
| Completed some college | 55.6% | 59.7% | 59.4% |
| Completed associate degree | 31.5% | 38.7% | 38.5% |
| Completed bachelors | 16.5% | 28.4% | 30.3% |
| Completed masters | 2.5% | 9.6% | 11.5% |
| Completed professional degree | 1.2% | 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 Rio. Using the proficiency score averages, the average test scores for Rio, WI schools is 36%. The average student to teacher ratio is n/a. In Rio, WI, an average of 89.2% of students have completed 8th grade and an average of 89.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Poynette, WI | 2,507 | 48% | = 100 |
| Portage, WI | 10,412 | 47% | 3.1% |
| Pardeeville, WI | 2,046 | 47% | 3.1% |
| Randolph, WI | 1,632 | 45% | 6.3% |
| DeForest, WI | 10,473 | 44% | 7.8% |
| Rio, WI | 1,049 | 36% | 25.5% |
| City | Population | Avg. Test Scores | National Avg. |
| West Pelzer, SC | 1,049 | 61% | 26.0% |
| Atkins, VA | 1,049 | 80% | 65.6% |
| Tyrone, OK | 1,049 | 21% | 56.3% |
| Herald, CA | 1,049 | 48% | = 100 |
| Hilbert, WI | 1,049 | 37% | 22.2% |
| Rio, WI | 1,049 | 36% | 25.5% |
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