| Index | St. Gabriel | Louisiana | National |
| Average Test Scores | 66% | 66% | 48% |
| Student/Teacher ratio | 10:1 | 14:1 | 16:1 |
| Total public schools | 4 | 1,334 | 79,221 |
| Total private schools | n/a | 395 | 24,874 |
| Total post-secondary schools | n/a | 175 | 7,963 |

| Index | St. Gabriel | Louisiana | National |
| Completed 8th grade | 66.3% | 80.2% | 84.3% |
| Completed high school | 63.5% | 78.5% | 83.0% |
| Completed some college | 36.3% | 49.9% | 59.4% |
| Completed associate degree | 18.1% | 28.6% | 38.5% |
| Completed bachelors | 12.3% | 23.0% | 30.3% |
| Completed masters | 4.6% | 7.9% | 11.5% |
| Completed professional degree | 1.6% | 2.6% | 3.3% |
| Completed doctorate | 0.8% | 1.0% | 1.3% |
There are a total of 4 public schools, n/a private schools and n/a post-secondary schools in St. Gabriel. Using the proficiency score averages, the average test scores for St. Gabriel, LA schools is 66%. The average student to teacher ratio is 10:1. In St. Gabriel, LA, an average of 66.3% of students have completed 8th grade and an average of 63.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Prairieville, LA | 34,153 | 88% | 82.5% |
| Sorrento, LA | 1,601 | 79% | 64.6% |
| Brusly, LA | 2,780 | 76% | 58.3% |
| Gonzales, LA | 11,160 | 73% | 52.7% |
| Port Allen, LA | 5,018 | 68% | 42.3% |
| St. Gabriel, LA | 7,582 | 66% | 37.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Marshfield, MO | 7,584 | 42% | 13.3% |
| Ponchatoula, LA | 7,577 | 63% | 31.0% |
| Highlands, TX | 7,590 | 44% | 8.9% |
| Bargersville, IN | 7,572 | 69% | 42.7% |
| Waikoloa Village, HI | 7,571 | 41% | 14.6% |
| St. Gabriel, LA | 7,582 | 66% | 37.5% |