| 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 |
| 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 | 22,604 | 70% | 46.0% |
| Crown Point, IN | 30,372 | 68% | 42.6% |
| Dyer, IN | 15,933 | 64% | 33.3% |
| St. John, IN | 18,382 | 64% | 32.3% |
| Schererville, IN | 28,559 | 63% | 30.2% |
| Griffith, IN | 16,198 | 45% | 7.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Stanford, CA | 16,200 | 78% | 61.5% |
| Hernando, MS | 16,206 | 71% | 47.7% |
| Mount Clemens, MI | 16,212 | 30% | 37.2% |
| Fairview Park, OH | 16,219 | 66% | 36.5% |
| Los Osos, CA | 16,174 | 61% | 27.4% |
| Griffith, IN | 16,198 | 45% | 7.3% |
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