| | Hoople, ND | Grafton, ND | United States |
| Population | 258 | 4,186 | 329,725,481 |
| Female Population | 49.2% | 51.3% | 50.5% |
| Male Population | 50.8% | 48.7% | 49.5% |
| Median Age | 35.1 | 43.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 244 | 4,282 | 309,327,143 |
| Population - 2000 | 292 | 4,516 | 285,036,114 |
| Population - 1990 | 310 | 4,840 | 251,960,433 |
| Pop. 2000 to Now | -24.3% | -9.8% | 15.6% |
| Pop. 1990 to Now | -28.7% | -15.8% | 30.8% |
| space4 | | | |
| Population Density | 485.9 | 1,267.3 | 93.4 |
| Land Area | 0.5 | 3.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hoople, ND | Grafton, ND | United States |
| Age 0 to 4 | 11.2% | 5.4% | 5.9% |
| Age 5 to 9 | 7.0% | 9.4% | 6.1% |
| Age 10 to 14 | 6.6% | 4.6% | 6.6% |
| Age 15 to 17 | 1.6% | 2.9% | 3.9% |
| Age 18 to 20 | 2.3% | 4.1% | 4.0% |
| Age 21 to 24 | 10.1% | 4.5% | 5.2% |
| Age 25 to 34 | 10.9% | 11.2% | 13.8% |
| Age 35 to 44 | 14.7% | 9.9% | 12.9% |
| Age 45 to 54 | 5.4% | 13.0% | 12.6% |
| Age 55 to 59 | 3.5% | 7.4% | 6.7% |
| Age 60 to 64 | 13.2% | 7.0% | 6.3% |
| Age 65 to 74 | 11.6% | 11.1% | 9.6% |
| Age 75 to 84 | 1.9% | 3.8% | 4.5% |
| Age 85 and over | 0.0% | 5.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hoople, ND | Grafton, ND | United States |
| White | 77.5% | 70.9% | 59.4% |
| Black | 0.0% | 1.1% | 12.2% |
| Asian | 0.0% | 1.3% | 5.6% |
| Native American | 0.0% | 2.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.6% | 1.3% | 3.2% |
| Hispanic | 20.9% | 23.0% | 18.4% |
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| Marriage & Family | | | |
| | Hoople, ND | Grafton, ND | United States |
| Married Population | 60.8% | 50.3% | 49.8% |
| Currently Married | 59.8% | 46.6% | 48.0% |
| Married but Separated | 1.0% | 3.7% | 1.8% |
| Single Population | 39.2% | 49.7% | 50.2% |
| Never Married | 26.8% | 30.7% | 33.8% |
| Divorced | 7.2% | 10.7% | 10.8% |
| Widowed | 5.2% | 8.2% | 5.6% |
| space5 | | | |
| Household Size | 2.22 | 2.13 | 2.60 |
| Households | 116 | 1,821 | 124,010,992 |
| Family Households | 76 | 956 | 80,755,759 |
| Married couple, w/children | 39.5% | 26.4% | 30.5% |
| Married couple, no children | 42.1% | 54.8% | 42.9% |
| Non Family Households | 40 | 865 | 43,255,233 |
| Single householder, w/children | 13.2% | 14.6% | 15.8% |
| Single householder, no children | 5.3% | 4.2% | 10.8% |