| Index | Griffith | Indiana | National |
| Average Test Scores | 45% | 46% | 48% |
| Student/Teacher ratio | 20:1 | 22:1 | 16:1 |
| Total public schools | 6 | 1,755 | 79,221 |
| Total private schools | 1 | 675 | 24,874 |
| Total post-secondary schools | n/a | 141 | 7,963 |


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| Index | Griffith | Indiana | National |
| Completed 8th grade | 85.6% | 84.6% | 84.3% |
| Completed high school | 85.5% | 82.9% | 83.0% |
| Completed some college | 52.6% | 53.8% | 59.4% |
| Completed associate degree | 26.1% | 33.0% | 38.5% |
| Completed bachelors | 17.1% | 24.6% | 30.3% |
| Completed masters | 4.6% | 8.9% | 11.5% |
| Completed professional degree | 0.1% | 2.4% | 3.3% |
| Completed doctorate | 0.0% | 1.0% | 1.3% |
There are a total of 6 public schools, 1 private schools and n/a post-secondary schools in Griffith. Using the proficiency score averages, the average test scores for Griffith, IN schools is 45%. The average student to teacher ratio is 20:1. In Griffith, IN, an average of 85.6% of students have completed 8th grade and an average of 85.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Munster, IN | 23,103 | 70% | 46.0% |
| Crown Point, IN | 31,396 | 68% | 42.6% |
| Dyer, IN | 16,417 | 64% | 33.3% |
| St. John, IN | 18,872 | 64% | 32.3% |
| Schererville, IN | 29,136 | 63% | 30.2% |
| Griffith, IN | 16,547 | 45% | 7.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Crowley, TX | 16,542 | 39% | 17.9% |
| Ukiah, CA | 16,537 | 35% | 27.7% |
| Ripon, CA | 16,534 | 56% | 15.8% |
| Brunswick, ME | 16,566 | 48% | 0.8% |
| Waxhaw, NC | 16,569 | 67% | 39.5% |
| Griffith, IN | 16,547 | 45% | 7.3% |