| Index | Garner | Iowa | National |
| Average Test Scores | 78% | 69% | 48% |
| Student/Teacher ratio | 15:1 | 13:1 | 16:1 |
| Total public schools | 3 | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Garner | Iowa | National |
| Completed 8th grade | 95.9% | 89.2% | 84.3% |
| Completed high school | 95.0% | 87.7% | 83.0% |
| Completed some college | 64.6% | 59.8% | 59.4% |
| Completed associate degree | 45.8% | 38.4% | 38.5% |
| Completed bachelors | 26.7% | 27.2% | 30.3% |
| Completed masters | 7.3% | 8.7% | 11.5% |
| Completed professional degree | 1.8% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Garner. Using the proficiency score averages, the average test scores for Garner, IA schools is 78%. The average student to teacher ratio is 15:1. In Garner, IA, an average of 95.9% of students have completed 8th grade and an average of 95.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Kanawha, IA | 983 | 80% | 65.6% |
| Forest City, IA | 4,267 | 75% | 55.9% |
| Ventura, IA | 783 | 74% | 54.2% |
| Britt, IA | 1,810 | 74% | 53.1% |
| Clear Lake, IA | 7,775 | 73% | 52.4% |
| Garner, IA | 3,134 | 78% | 63.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Montezuma, GA | 3,134 | 12% | 75.0% |
| Hartville, OH | 3,135 | 87% | 80.2% |
| Paddock Lake, WI | 3,136 | 46% | 5.2% |
| Hawarden, IA | 3,136 | 55% | 13.5% |
| Tolono, IL | 3,137 | 34% | 29.5% |
| Garner, IA | 3,134 | 78% | 63.0% |
Here are the best places to live in Iowa
Most Dangerous States In The US
Check out the 10 safest cities in Iowa
Most Dangerous Cities In The US