| | Fort Fairfield, ME | Topanga, CA | United States |
| Population | 3,302 | 8,255 | 329,725,481 |
| Female Population | 49.2% | 49.7% | 50.5% |
| Male Population | 50.8% | 50.3% | 49.5% |
| Median Age | 47.6 | 45.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,489 | 8,520 | 309,327,143 |
| Population - 2000 | 3,579 | 7,726 | 285,036,114 |
| Population - 1990 | 3,998 | 7,560 | 251,960,433 |
| Pop. 2000 to Now | -8.4% | -1.6% | 15.6% |
| Pop. 1990 to Now | -18.0% | 0.6% | 30.8% |
| space4 | | | |
| Population Density | 43.1 | 431.5 | 93.4 |
| Land Area | 76.7 | 19.1 | 3,531,905.4 |
| Water Area | 1.7 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Fort Fairfield, ME | Topanga, CA | United States |
| Age 0 to 4 | 7.6% | 3.5% | 5.9% |
| Age 5 to 9 | 4.8% | 5.3% | 6.1% |
| Age 10 to 14 | 4.1% | 5.9% | 6.6% |
| Age 15 to 17 | 2.9% | 4.8% | 3.9% |
| Age 18 to 20 | 3.1% | 2.7% | 4.0% |
| Age 21 to 24 | 4.1% | 2.6% | 5.2% |
| Age 25 to 34 | 11.9% | 7.9% | 13.8% |
| Age 35 to 44 | 8.1% | 15.2% | 12.9% |
| Age 45 to 54 | 17.6% | 17.8% | 12.6% |
| Age 55 to 59 | 4.3% | 6.7% | 6.7% |
| Age 60 to 64 | 5.2% | 8.0% | 6.3% |
| Age 65 to 74 | 17.7% | 9.8% | 9.6% |
| Age 75 to 84 | 4.5% | 8.3% | 4.5% |
| Age 85 and over | 4.2% | 1.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Fort Fairfield, ME | Topanga, CA | United States |
| White | 94.6% | 67.6% | 59.4% |
| Black | 0.0% | 1.7% | 12.2% |
| Asian | 0.2% | 11.6% | 5.6% |
| Native American | 2.5% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 1.4% | 0.4% |
| Two or More Races | 1.2% | 4.4% | 3.2% |
| Hispanic | 1.5% | 13.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Fort Fairfield, ME | Topanga, CA | United States |
| Married Population | 47.6% | 59.3% | 49.8% |
| Currently Married | 46.5% | 58.7% | 48.0% |
| Married but Separated | 1.1% | 0.5% | 1.8% |
| Single Population | 52.4% | 40.7% | 50.2% |
| Never Married | 26.6% | 28.6% | 33.8% |
| Divorced | 19.2% | 8.3% | 10.8% |
| Widowed | 6.6% | 3.8% | 5.6% |
| space5 | | | |
| Household Size | 2.53 | 2.72 | 2.60 |
| Households | 1,303 | 3,031 | 124,010,992 |
| Family Households | 965 | 2,162 | 80,755,759 |
| Married couple, w/children | 23.5% | 29.8% | 30.5% |
| Married couple, no children | 41.6% | 51.4% | 42.9% |
| Non Family Households | 338 | 869 | 43,255,233 |
| Single householder, w/children | 19.2% | 12.7% | 15.8% |
| Single householder, no children | 15.8% | 6.1% | 10.8% |