| Index | Sulphur | Louisiana | National |
| Average Test Scores | 81% | 66% | 48% |
| Student/Teacher ratio | 14:1 | 14:1 | 16:1 |
| Total public schools | 11 | 1,334 | 79,221 |
| Total private schools | 3 | 395 | 24,874 |
| Total post-secondary schools | n/a | 175 | 7,963 |
| Index | Sulphur | Louisiana | National |
| Completed 8th grade | 82.0% | 80.2% | 84.3% |
| Completed high school | 80.9% | 78.5% | 83.0% |
| Completed some college | 51.8% | 49.9% | 59.4% |
| Completed associate degree | 26.2% | 28.6% | 38.5% |
| Completed bachelors | 19.1% | 23.0% | 30.3% |
| Completed masters | 5.6% | 7.9% | 11.5% |
| Completed professional degree | 1.1% | 2.6% | 3.3% |
| Completed doctorate | 0.7% | 1.0% | 1.3% |
There are a total of 11 public schools, 3 private schools and n/a post-secondary schools in Sulphur. Using the proficiency score averages, the average test scores for Sulphur, LA schools is 81%. The average student to teacher ratio is 14:1. In Sulphur, LA, an average of 82.0% of students have completed 8th grade and an average of 80.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Westlake, LA | 4,788 | 83% | 72.6% |
| Vinton, LA | 3,296 | 73% | 51.7% |
| Lake Charles, LA | 77,832 | 66% | 36.5% |
| Sulphur, LA | 20,122 | 81% | 68.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Rocky River, OH | 20,115 | 91% | 89.6% |
| South St. Paul, MN | 20,132 | 42% | 13.0% |
| Dixon, CA | 20,106 | 35% | 26.6% |
| Ferndale, MI | 20,139 | 21% | 55.7% |
| Charleston, IL | 20,141 | 27% | 44.8% |
| Sulphur, LA | 20,122 | 81% | 68.2% |
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