| | Helena Flats, MT | Hungry Horse, MT | United States |
| Population | 1,296 | 607 | 329,725,481 |
| Female Population | 45.8% | 33.9% | 50.5% |
| Male Population | 54.2% | 66.1% | 49.5% |
| Median Age | 36.6 | 47.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,002 | 919 | 309,327,143 |
| Population - 2000 | 837 | 934 | 285,036,114 |
| Population - 1990 | 633 | 642 | 251,960,433 |
| Pop. 2000 to Now | 29.3% | -38.8% | 15.6% |
| Pop. 1990 to Now | 70.9% | -10.9% | 30.8% |
| space4 | | | |
| Population Density | 153.6 | 423.3 | 93.4 |
| Land Area | 8.4 | 1.4 | 3,531,905.4 |
| Water Area | 0.3 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Helena Flats, MT | Hungry Horse, MT | United States |
| Age 0 to 4 | 6.8% | 4.1% | 5.9% |
| Age 5 to 9 | 5.6% | 3.5% | 6.1% |
| Age 10 to 14 | 4.8% | 17.1% | 6.6% |
| Age 15 to 17 | 4.3% | 0.0% | 3.9% |
| Age 18 to 20 | 3.5% | 1.2% | 4.0% |
| Age 21 to 24 | 4.6% | 3.3% | 5.2% |
| Age 25 to 34 | 14.4% | 15.8% | 13.8% |
| Age 35 to 44 | 17.5% | 3.3% | 12.9% |
| Age 45 to 54 | 8.5% | 11.4% | 12.6% |
| Age 55 to 59 | 5.7% | 9.7% | 6.7% |
| Age 60 to 64 | 7.3% | 2.6% | 6.3% |
| Age 65 to 74 | 14.4% | 18.8% | 9.6% |
| Age 75 to 84 | 2.2% | 9.2% | 4.5% |
| Age 85 and over | 0.2% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Helena Flats, MT | Hungry Horse, MT | United States |
| White | 82.0% | 93.9% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.4% | 0.0% | 5.6% |
| Native American | 4.2% | 6.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 8.3% | 0.0% | 3.2% |
| Hispanic | 5.0% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Helena Flats, MT | Hungry Horse, MT | United States |
| Married Population | 51.8% | 61.1% | 49.8% |
| Currently Married | 51.5% | 61.1% | 48.0% |
| Married but Separated | 0.3% | 0.0% | 1.8% |
| Single Population | 48.2% | 39.0% | 50.2% |
| Never Married | 33.9% | 12.3% | 33.8% |
| Divorced | 11.7% | 16.0% | 10.8% |
| Widowed | 2.5% | 10.7% | 5.6% |
| space5 | | | |
| Household Size | 2.95 | 1.90 | 2.60 |
| Households | 439 | 308 | 124,010,992 |
| Family Households | 287 | 145 | 80,755,759 |
| Married couple, w/children | 32.1% | 24.1% | 30.5% |
| Married couple, no children | 61.7% | 48.3% | 42.9% |
| Non Family Households | 152 | 163 | 43,255,233 |
| Single householder, w/children | 5.2% | 27.6% | 15.8% |
| Single householder, no children | 1.0% | 0.0% | 10.8% |