| | Sulphur, OK | Guymon, OK | United States |
| Population | 4,979 | 12,804 | 329,725,481 |
| Female Population | 51.6% | 43.9% | 50.5% |
| Male Population | 48.4% | 56.1% | 49.5% |
| Median Age | 33.7 | 30.5 | 38.4 |
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| Population - 2010 | 4,941 | 11,538 | 309,327,143 |
| Population - 2000 | 4,794 | 10,472 | 285,036,114 |
| Population - 1990 | 4,824 | 7,803 | 251,960,433 |
| Pop. 2000 to Now | 4.1% | 5.1% | 15.6% |
| Pop. 1990 to Now | 3.4% | 41.1% | 30.8% |
| space4 | | | |
| Population Density | 726.1 | 1,646.4 | 93.4 |
| Land Area | 6.9 | 7.8 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Sulphur, OK | Guymon, OK | United States |
| Age 0 to 4 | 9.5% | 8.4% | 5.9% |
| Age 5 to 9 | 7.8% | 7.7% | 6.1% |
| Age 10 to 14 | 7.3% | 9.7% | 6.6% |
| Age 15 to 17 | 5.6% | 4.6% | 3.9% |
| Age 18 to 20 | 2.6% | 3.9% | 4.0% |
| Age 21 to 24 | 7.6% | 6.0% | 5.2% |
| Age 25 to 34 | 10.5% | 16.1% | 13.8% |
| Age 35 to 44 | 7.7% | 11.5% | 12.9% |
| Age 45 to 54 | 10.6% | 13.4% | 12.6% |
| Age 55 to 59 | 5.9% | 7.7% | 6.7% |
| Age 60 to 64 | 6.2% | 3.8% | 6.3% |
| Age 65 to 74 | 10.2% | 5.3% | 9.6% |
| Age 75 to 84 | 4.3% | 1.3% | 4.5% |
| Age 85 and over | 4.3% | 0.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Sulphur, OK | Guymon, OK | United States |
| White | 65.5% | 28.6% | 59.4% |
| Black | 1.0% | 7.2% | 12.2% |
| Asian | 1.5% | 4.6% | 5.6% |
| Native American | 9.4% | 0.6% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 9.9% | 2.0% | 3.2% |
| Hispanic | 12.7% | 57.0% | 18.4% |
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| Marriage & Family | | | |
| | Sulphur, OK | Guymon, OK | United States |
| Married Population | 44.1% | 43.2% | 49.8% |
| Currently Married | 41.4% | 39.9% | 48.0% |
| Married but Separated | 2.7% | 3.2% | 1.8% |
| Single Population | 55.9% | 56.8% | 50.2% |
| Never Married | 29.9% | 39.3% | 33.8% |
| Divorced | 16.0% | 14.1% | 10.8% |
| Widowed | 10.0% | 3.5% | 5.6% |
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| Household Size | 2.76 | 3.13 | 2.60 |
| Households | 1,696 | 4,046 | 124,010,992 |
| Family Households | 978 | 2,331 | 80,755,759 |
| Married couple, w/children | 36.0% | 34.5% | 30.5% |
| Married couple, no children | 30.7% | 33.9% | 42.9% |
| Non Family Households | 718 | 1,715 | 43,255,233 |
| Single householder, w/children | 24.2% | 26.5% | 15.8% |
| Single householder, no children | 9.1% | 5.1% | 10.8% |