| Index | Grand Coteau | Louisiana | National |
| Average Test Scores | 65% | 66% | 48% |
| Student/Teacher ratio | 11:1 | 14:1 | 16:1 |
| Total public schools | 1 | 1,334 | 79,221 |
| Total private schools | 2 | 395 | 24,874 |
| Total post-secondary schools | n/a | 175 | 7,963 |
| Index | Grand Coteau | Louisiana | National |
| Completed 8th grade | 87.3% | 80.2% | 84.3% |
| Completed high school | 83.2% | 78.5% | 83.0% |
| Completed some college | 33.7% | 49.9% | 59.4% |
| Completed associate degree | 20.7% | 28.6% | 38.5% |
| Completed bachelors | 13.4% | 23.0% | 30.3% |
| Completed masters | 2.2% | 7.9% | 11.5% |
| Completed professional degree | 0.8% | 2.6% | 3.3% |
| Completed doctorate | 0.5% | 1.0% | 1.3% |
There are a total of 1 public schools, 2 private schools and n/a post-secondary schools in Grand Coteau. Using the proficiency score averages, the average test scores for Grand Coteau, LA schools is 65%. The average student to teacher ratio is 11:1. In Grand Coteau, LA, an average of 87.3% of students have completed 8th grade and an average of 83.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Leonville, LA | 2,127 | 80% | 65.6% |
| Port Barre, LA | 1,619 | 79% | 65.3% |
| Rayne, LA | 8,062 | 75% | 56.9% |
| Scott, LA | 8,815 | 74% | 54.9% |
| Cankton, LA | 896 | 72% | 50.0% |
| Grand Coteau, LA | 1,038 | 65% | 34.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Carson City, MI | 1,038 | 41% | 15.6% |
| New Richland, MN | 1,039 | 51% | 5.2% |
| Manassa, CO | 1,039 | 50% | 3.1% |
| Colebrook, NH | 1,037 | 39% | 19.8% |
| Nicollet, MN | 1,037 | 56% | 16.0% |
| Grand Coteau, LA | 1,038 | 65% | 34.4% |
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