| | Grass Range, MT | Nome, AK | United States |
| Population | 114 | 3,685 | 329,725,481 |
| Female Population | 52.6% | 50.9% | 50.5% |
| Male Population | 47.4% | 49.1% | 49.5% |
| Median Age | 68.2 | 31 | 38.4 |
| space3 | | | |
| Population - 2010 | 110 | 3,615 | 309,327,143 |
| Population - 2000 | 149 | 3,505 | 285,036,114 |
| Population - 1990 | 159 | 3,500 | 251,960,433 |
| Pop. 2000 to Now | -29.5% | 9.8% | 15.6% |
| Pop. 1990 to Now | -34.0% | 9.9% | 30.8% |
| space4 | | | |
| Population Density | 814.3 | 288.0 | 93.4 |
| Land Area | 0.1 | 12.8 | 3,531,905.4 |
| Water Area | 0.0 | 8.7 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Grass Range, MT | Nome, AK | United States |
| Age 0 to 4 | 3.5% | 9.2% | 5.9% |
| Age 5 to 9 | 0.9% | 7.4% | 6.1% |
| Age 10 to 14 | 2.6% | 9.3% | 6.6% |
| Age 15 to 17 | 3.5% | 4.0% | 3.9% |
| Age 18 to 20 | 0.0% | 3.2% | 4.0% |
| Age 21 to 24 | 0.0% | 5.9% | 5.2% |
| Age 25 to 34 | 2.6% | 16.8% | 13.8% |
| Age 35 to 44 | 13.2% | 14.8% | 12.9% |
| Age 45 to 54 | 11.4% | 12.3% | 12.6% |
| Age 55 to 59 | 1.8% | 6.3% | 6.7% |
| Age 60 to 64 | 5.3% | 3.6% | 6.3% |
| Age 65 to 74 | 38.6% | 4.9% | 9.6% |
| Age 75 to 84 | 12.3% | 2.0% | 4.5% |
| Age 85 and over | 4.4% | 0.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Grass Range, MT | Nome, AK | United States |
| White | 96.5% | 26.1% | 59.4% |
| Black | 0.0% | 1.6% | 12.2% |
| Asian | 0.0% | 3.1% | 5.6% |
| Native American | 0.0% | 53.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.5% | 11.1% | 3.2% |
| Hispanic | 0.0% | 5.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Grass Range, MT | Nome, AK | United States |
| Married Population | 45.3% | 39.6% | 49.8% |
| Currently Married | 45.3% | 37.7% | 48.0% |
| Married but Separated | 0.0% | 2.0% | 1.8% |
| Single Population | 54.7% | 60.4% | 50.2% |
| Never Married | 3.8% | 44.3% | 33.8% |
| Divorced | 35.8% | 11.5% | 10.8% |
| Widowed | 15.1% | 4.6% | 5.6% |
| space5 | | | |
| Household Size | 1.52 | 2.99 | 2.60 |
| Households | 75 | 1,144 | 124,010,992 |
| Family Households | 23 | 749 | 80,755,759 |
| Married couple, w/children | 39.1% | 32.7% | 30.5% |
| Married couple, no children | 60.9% | 20.4% | 42.9% |
| Non Family Households | 52 | 395 | 43,255,233 |
| Single householder, w/children | 0.0% | 33.8% | 15.8% |
| Single householder, no children | 0.0% | 13.1% | 10.8% |