| Index | Griswold | Iowa | National |
| Average Test Scores | 75% | 69% | 48% |
| Student/Teacher ratio | 13:1 | 13:1 | 16:1 |
| Total public schools | 1 | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Griswold | Iowa | National |
| Completed 8th grade | 82.1% | 89.2% | 84.3% |
| Completed high school | 81.8% | 87.7% | 83.0% |
| Completed some college | 46.6% | 59.8% | 59.4% |
| Completed associate degree | 24.7% | 38.4% | 38.5% |
| Completed bachelors | 14.2% | 27.2% | 30.3% |
| Completed masters | 2.8% | 8.7% | 11.5% |
| Completed professional degree | 0.7% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 1 public schools, n/a private schools and n/a post-secondary schools in Griswold. Using the proficiency score averages, the average test scores for Griswold, IA schools is 75%. The average student to teacher ratio is 13:1. In Griswold, IA, an average of 82.1% of students have completed 8th grade and an average of 81.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Elliott, IA | 539 | 85% | 77.1% |
| Carson, IA | 730 | 77% | 60.4% |
| Lewis, IA | 513 | 75% | 56.3% |
| Oakland, IA | 1,665 | 70% | 45.3% |
| Atlantic, IA | 6,600 | 69% | 43.0% |
| Griswold, IA | 1,179 | 75% | 55.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Kellyville, OK | 1,179 | 39% | 18.5% |
| Tunica, MS | 1,180 | 31% | 36.1% |
| Dixon, KY | 1,178 | 44% | 7.6% |
| Petersburg, MI | 1,178 | 50% | 3.1% |
| Cottonwood, MN | 1,180 | 61% | 27.1% |
| Griswold, IA | 1,179 | 75% | 55.2% |
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