| Index | Garnavillo | Iowa | National |
| Average Test Scores | 71% | 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 | Garnavillo | Iowa | National |
| Completed 8th grade | 86.2% | 89.2% | 84.3% |
| Completed high school | 81.5% | 87.7% | 83.0% |
| Completed some college | 41.8% | 59.8% | 59.4% |
| Completed associate degree | 19.4% | 38.4% | 38.5% |
| Completed bachelors | 13.2% | 27.2% | 30.3% |
| Completed masters | 2.6% | 8.7% | 11.5% |
| Completed professional degree | 0.3% | 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 Garnavillo. Using the proficiency score averages, the average test scores for Garnavillo, IA schools is 71%. The average student to teacher ratio is n/a. In Garnavillo, IA, an average of 86.2% of students have completed 8th grade and an average of 81.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Guttenberg, IA | 1,689 | 70% | 45.8% |
| Monona, IA | 1,639 | 70% | 45.8% |
| McGregor, IA | 837 | 66% | 37.0% |
| Elkader, IA | 1,362 | 62% | 29.7% |
| Prairie du Chien, WI | 5,605 | 48% | 0.8% |
| Garnavillo, IA | 815 | 71% | 48.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Campbellsburg, IN | 815 | 56% | 17.2% |
| Stoddard, WI | 815 | 45% | 6.3% |
| Pocono Pines, PA | 815 | 55% | 13.5% |
| Keysville, VA | 814 | 92% | 91.7% |
| Alamo, NM | 816 | 7% | 86.5% |
| Garnavillo, IA | 815 | 71% | 48.3% |
Here are the best places to live in Iowa
10 Best cities in Iowa for employment
These are the 10 most affordable cities in Iowa
Check out the 10 safest cities in Iowa