| | St. Thomas, ND | Drayton, ND | United States |
| Population | 297 | 754 | 329,725,481 |
| Female Population | 52.5% | 48.1% | 50.5% |
| Male Population | 47.5% | 51.9% | 49.5% |
| Median Age | 54.6 | 43.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 330 | 823 | 309,327,143 |
| Population - 2000 | 447 | 913 | 285,036,114 |
| Population - 1990 | 444 | 961 | 251,960,433 |
| Pop. 2000 to Now | -32.7% | -20.3% | 15.6% |
| Pop. 1990 to Now | -32.2% | -24.3% | 30.8% |
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| Population Density | 292.6 | 1,145.9 | 93.4 |
| Land Area | 1.0 | 0.7 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | St. Thomas, ND | Drayton, ND | United States |
| Age 0 to 4 | 6.4% | 2.0% | 5.9% |
| Age 5 to 9 | 3.0% | 8.6% | 6.1% |
| Age 10 to 14 | 2.0% | 11.3% | 6.6% |
| Age 15 to 17 | 0.7% | 2.7% | 3.9% |
| Age 18 to 20 | 0.7% | 2.9% | 4.0% |
| Age 21 to 24 | 2.4% | 0.5% | 5.2% |
| Age 25 to 34 | 17.5% | 9.4% | 13.8% |
| Age 35 to 44 | 6.1% | 13.4% | 12.9% |
| Age 45 to 54 | 11.8% | 11.1% | 12.6% |
| Age 55 to 59 | 8.4% | 4.8% | 6.7% |
| Age 60 to 64 | 12.5% | 11.1% | 6.3% |
| Age 65 to 74 | 23.9% | 15.0% | 9.6% |
| Age 75 to 84 | 3.4% | 5.6% | 4.5% |
| Age 85 and over | 1.3% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | St. Thomas, ND | Drayton, ND | United States |
| White | 84.5% | 95.9% | 59.4% |
| Black | 0.0% | 0.1% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.7% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.7% | 2.9% | 3.2% |
| Hispanic | 14.1% | 1.1% | 18.4% |
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| Marriage & Family | | | |
| | St. Thomas, ND | Drayton, ND | United States |
| Married Population | 33.1% | 65.7% | 49.8% |
| Currently Married | 33.1% | 65.4% | 48.0% |
| Married but Separated | 0.0% | 0.3% | 1.8% |
| Single Population | 66.9% | 34.3% | 50.2% |
| Never Married | 37.3% | 19.7% | 33.8% |
| Divorced | 12.2% | 11.4% | 10.8% |
| Widowed | 17.5% | 3.2% | 5.6% |
| space5 | | | |
| Household Size | 1.98 | 2.25 | 2.60 |
| Households | 150 | 335 | 124,010,992 |
| Family Households | 60 | 232 | 80,755,759 |
| Married couple, w/children | 16.7% | 31.9% | 30.5% |
| Married couple, no children | 50.0% | 53.4% | 42.9% |
| Non Family Households | 90 | 103 | 43,255,233 |
| Single householder, w/children | 16.7% | 8.6% | 15.8% |
| Single householder, no children | 16.7% | 6.0% | 10.8% |