| Index | Renwick | 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 | Renwick | Iowa | National |
| Completed 8th grade | 86.2% | 89.2% | 84.3% |
| Completed high school | 85.2% | 87.7% | 83.0% |
| Completed some college | 49.8% | 59.8% | 59.4% |
| Completed associate degree | 24.6% | 38.4% | 38.5% |
| Completed bachelors | 10.3% | 27.2% | 30.3% |
| Completed masters | 1.5% | 8.7% | 11.5% |
| Completed professional degree | 0.5% | 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 Renwick. Using the proficiency score averages, the average test scores for Renwick, IA schools is n/a. The average student to teacher ratio is n/a. In Renwick, IA, an average of 86.2% of students have completed 8th grade and an average of 85.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Humboldt, IA | 4,568 | 81% | 68.1% |
| Kanawha, IA | 954 | 80% | 65.6% |
| Lu Verne, IA | 278 | 75% | 56.3% |
| Clarion, IA | 2,726 | 73% | 51.0% |
| Eagle Grove, IA | 3,410 | 54% | 12.2% |
| Renwick, IA | 249 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Chataignier, LA | 249 | 67% | 38.5% |
| Nett Lake, MN | 249 | 50% | 4.2% |
| Groveland, CA | 249 | 41% | 14.6% |
| Straughn, IN | 249 | 42% | 13.5% |
| Sumner, MS | 249 | 22% | 55.2% |
| Renwick, IA | 249 | n/a |
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