| | Superior, MT | Alberton, MT | United States |
| Population | 756 | 489 | 329,725,481 |
| Female Population | 54.8% | 49.1% | 50.5% |
| Male Population | 45.2% | 50.9% | 49.5% |
| Median Age | 60.6 | 35.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 818 | 416 | 309,327,143 |
| Population - 2000 | 893 | 374 | 285,036,114 |
| Population - 1990 | 881 | 354 | 251,960,433 |
| Pop. 2000 to Now | 0.5% | 24.1% | 15.6% |
| Pop. 1990 to Now | 1.8% | 31.1% | 30.8% |
| space4 | | | |
| Population Density | 791.6 | 894.0 | 93.4 |
| Land Area | 1.0 | 0.5 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Superior, MT | Alberton, MT | United States |
| Age 0 to 4 | 4.2% | 6.1% | 5.9% |
| Age 5 to 9 | 2.9% | 6.7% | 6.1% |
| Age 10 to 14 | 4.0% | 11.0% | 6.6% |
| Age 15 to 17 | 0.8% | 5.5% | 3.9% |
| Age 18 to 20 | 1.2% | 0.0% | 4.0% |
| Age 21 to 24 | 2.8% | 1.0% | 5.2% |
| Age 25 to 34 | 8.5% | 18.8% | 13.8% |
| Age 35 to 44 | 10.6% | 15.5% | 12.9% |
| Age 45 to 54 | 6.6% | 16.6% | 12.6% |
| Age 55 to 59 | 6.5% | 3.7% | 6.7% |
| Age 60 to 64 | 10.8% | 4.5% | 6.3% |
| Age 65 to 74 | 24.7% | 4.3% | 9.6% |
| Age 75 to 84 | 11.5% | 5.1% | 4.5% |
| Age 85 and over | 4.9% | 1.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Superior, MT | Alberton, MT | United States |
| White | 91.9% | 85.7% | 59.4% |
| Black | 0.3% | 0.0% | 12.2% |
| Asian | 0.7% | 2.0% | 5.6% |
| Native American | 0.4% | 3.7% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 5.7% | 5.5% | 3.2% |
| Hispanic | 1.1% | 3.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Superior, MT | Alberton, MT | United States |
| Married Population | 53.9% | 62.1% | 49.8% |
| Currently Married | 51.9% | 59.9% | 48.0% |
| Married but Separated | 1.9% | 2.2% | 1.8% |
| Single Population | 46.1% | 37.9% | 50.2% |
| Never Married | 17.3% | 22.3% | 33.8% |
| Divorced | 18.5% | 9.1% | 10.8% |
| Widowed | 10.4% | 6.5% | 5.6% |
| space5 | | | |
| Household Size | 1.86 | 2.57 | 2.60 |
| Households | 384 | 190 | 124,010,992 |
| Family Households | 208 | 152 | 80,755,759 |
| Married couple, w/children | 23.1% | 36.8% | 30.5% |
| Married couple, no children | 62.5% | 42.8% | 42.9% |
| Non Family Households | 176 | 38 | 43,255,233 |
| Single householder, w/children | 5.3% | 11.8% | 15.8% |
| Single householder, no children | 9.1% | 8.6% | 10.8% |