| | Hartford, ME | Thayne, WY | United States |
| Population | 1,046 | 498 | 329,725,481 |
| Female Population | 52.1% | 48.4% | 50.5% |
| Male Population | 47.9% | 51.6% | 49.5% |
| Median Age | 46.1 | 40.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,185 | 365 | 309,327,143 |
| Population - 2000 | 963 | 341 | 285,036,114 |
| Population - 1990 | 722 | 267 | 251,960,433 |
| Pop. 2000 to Now | 27.6% | 18.2% | 15.6% |
| Pop. 1990 to Now | 70.2% | 50.9% | 30.8% |
| space4 | | | |
| Population Density | 23.8 | 357.3 | 93.4 |
| Land Area | 43.9 | 1.4 | 3,531,905.4 |
| Water Area | 1.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hartford, ME | Thayne, WY | United States |
| Age 0 to 4 | 4.0% | 8.4% | 5.9% |
| Age 5 to 9 | 5.6% | 4.6% | 6.1% |
| Age 10 to 14 | 5.7% | 7.0% | 6.6% |
| Age 15 to 17 | 3.3% | 4.0% | 3.9% |
| Age 18 to 20 | 0.9% | 0.0% | 4.0% |
| Age 21 to 24 | 5.9% | 7.6% | 5.2% |
| Age 25 to 34 | 11.1% | 13.3% | 13.8% |
| Age 35 to 44 | 12.5% | 11.2% | 12.9% |
| Age 45 to 54 | 16.1% | 6.0% | 12.6% |
| Age 55 to 59 | 7.6% | 5.0% | 6.7% |
| Age 60 to 64 | 8.6% | 7.2% | 6.3% |
| Age 65 to 74 | 14.9% | 21.5% | 9.6% |
| Age 75 to 84 | 3.2% | 2.4% | 4.5% |
| Age 85 and over | 0.7% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hartford, ME | Thayne, WY | United States |
| White | 93.4% | 90.2% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 4.6% | 2.8% | 3.2% |
| Hispanic | 2.0% | 7.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Hartford, ME | Thayne, WY | United States |
| Married Population | 53.3% | 64.6% | 49.8% |
| Currently Married | 52.2% | 61.1% | 48.0% |
| Married but Separated | 1.1% | 3.5% | 1.8% |
| Single Population | 46.7% | 35.4% | 50.2% |
| Never Married | 26.3% | 19.3% | 33.8% |
| Divorced | 16.2% | 8.0% | 10.8% |
| Widowed | 4.2% | 8.0% | 5.6% |
| space5 | | | |
| Household Size | 2.77 | 2.57 | 2.60 |
| Households | 377 | 193 | 124,010,992 |
| Family Households | 250 | 144 | 80,755,759 |
| Married couple, w/children | 28.0% | 32.6% | 30.5% |
| Married couple, no children | 46.4% | 57.6% | 42.9% |
| Non Family Households | 127 | 49 | 43,255,233 |
| Single householder, w/children | 12.4% | 7.6% | 15.8% |
| Single householder, no children | 13.2% | 2.1% | 10.8% |