| | Belcourt, ND | Hernando, MS | United States |
| Population | 1,751 | 16,730 | 329,725,481 |
| Female Population | 58.5% | 52.3% | 50.5% |
| Male Population | 41.5% | 47.7% | 49.5% |
| Median Age | 26.8 | 36.8 | 38.4 |
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| Population - 2010 | 1,558 | 14,119 | 309,327,143 |
| Population - 2000 | 2,440 | 6,812 | 285,036,114 |
| Population - 1990 | 2,458 | 3,125 | 251,960,433 |
| Pop. 2000 to Now | -23.7% | 147.4% | 15.6% |
| Pop. 1990 to Now | -24.3% | 439.3% | 30.8% |
| space4 | | | |
| Population Density | 301.5 | 661.2 | 93.4 |
| Land Area | 5.8 | 25.3 | 3,531,905.4 |
| Water Area | 0.2 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Belcourt, ND | Hernando, MS | United States |
| Age 0 to 4 | 7.1% | 9.2% | 5.9% |
| Age 5 to 9 | 17.0% | 6.7% | 6.1% |
| Age 10 to 14 | 9.0% | 7.4% | 6.6% |
| Age 15 to 17 | 5.0% | 2.7% | 3.9% |
| Age 18 to 20 | 2.5% | 2.1% | 4.0% |
| Age 21 to 24 | 2.6% | 4.9% | 5.2% |
| Age 25 to 34 | 15.3% | 14.0% | 13.8% |
| Age 35 to 44 | 14.9% | 12.8% | 12.9% |
| Age 45 to 54 | 11.5% | 11.1% | 12.6% |
| Age 55 to 59 | 2.0% | 3.7% | 6.7% |
| Age 60 to 64 | 3.0% | 6.1% | 6.3% |
| Age 65 to 74 | 7.7% | 13.9% | 9.6% |
| Age 75 to 84 | 0.0% | 4.5% | 4.5% |
| Age 85 and over | 2.3% | 0.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Belcourt, ND | Hernando, MS | United States |
| White | 3.0% | 77.2% | 59.4% |
| Black | 0.0% | 16.6% | 12.2% |
| Asian | 0.7% | 0.7% | 5.6% |
| Native American | 94.3% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.8% | 1.0% | 3.2% |
| Hispanic | 0.2% | 4.4% | 18.4% |
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| Marriage & Family | | | |
| | Belcourt, ND | Hernando, MS | United States |
| Married Population | 37.9% | 59.8% | 49.8% |
| Currently Married | 32.8% | 58.9% | 48.0% |
| Married but Separated | 5.1% | 0.8% | 1.8% |
| Single Population | 62.1% | 40.2% | 50.2% |
| Never Married | 45.6% | 20.1% | 33.8% |
| Divorced | 8.1% | 13.6% | 10.8% |
| Widowed | 8.3% | 6.6% | 5.6% |
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| Household Size | 3.30 | 2.53 | 2.60 |
| Households | 513 | 6,525 | 124,010,992 |
| Family Households | 401 | 4,809 | 80,755,759 |
| Married couple, w/children | 24.2% | 34.5% | 30.5% |
| Married couple, no children | 19.7% | 42.5% | 42.9% |
| Non Family Households | 112 | 1,716 | 43,255,233 |
| Single householder, w/children | 36.7% | 18.1% | 15.8% |
| Single householder, no children | 19.5% | 4.9% | 10.8% |