| Index | Sulphur | Oklahoma | National |
| Average Test Scores | 38% | 32% | 48% |
| Student/Teacher ratio | 18:1 | 22:1 | 16:1 |
| Total public schools | 6 | 1,346 | 79,221 |
| Total private schools | n/a | 159 | 24,874 |
| Total post-secondary schools | n/a | 178 | 7,963 |
| Index | Sulphur | Oklahoma | National |
| Completed 8th grade | 72.2% | 83.5% | 84.3% |
| Completed high school | 70.1% | 82.2% | 83.0% |
| Completed some college | 41.5% | 55.6% | 59.4% |
| Completed associate degree | 23.1% | 31.9% | 38.5% |
| Completed bachelors | 16.8% | 24.5% | 30.3% |
| Completed masters | 6.6% | 8.1% | 11.5% |
| Completed professional degree | 1.9% | 2.3% | 3.3% |
| Completed doctorate | 1.2% | 1.0% | 1.3% |
There are a total of 6 public schools, n/a private schools and n/a post-secondary schools in Sulphur. Using the proficiency score averages, the average test scores for Sulphur, OK schools is 38%. The average student to teacher ratio is 18:1. In Sulphur, OK, an average of 72.2% of students have completed 8th grade and an average of 70.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Roff, OK | 781 | 32% | 32.8% |
| Mill Creek, OK | 303 | 32% | 32.8% |
| Davis, OK | 2,853 | 27% | 43.8% |
| Wynnewood, OK | 1,838 | 23% | 53.1% |
| Sulphur, OK | 5,023 | 38% | 20.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Orange, VA | 5,024 | 82% | 71.5% |
| Pawcatuck, CT | 5,024 | 68% | 42.4% |
| Ettrick, VA | 5,024 | 75% | 55.2% |
| Utica, MI | 5,025 | 52% | 7.3% |
| Saltillo, MS | 5,026 | 50% | 4.2% |
| Sulphur, OK | 5,023 | 38% | 20.8% |
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