| | Athens, ME | Madison, ME | United States |
| Population | 719 | 4,711 | 329,725,481 |
| Female Population | 48.3% | 47.4% | 50.5% |
| Male Population | 51.7% | 52.6% | 49.5% |
| Median Age | 44.7 | 50.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,018 | 4,850 | 309,327,143 |
| Population - 2000 | 847 | 4,523 | 285,036,114 |
| Population - 1990 | 897 | 4,725 | 251,960,433 |
| Pop. 2000 to Now | 15.2% | 3.8% | 15.6% |
| Pop. 1990 to Now | 8.8% | -0.6% | 30.8% |
| space4 | | | |
| Population Density | 16.5 | 90.8 | 93.4 |
| Land Area | 43.6 | 51.9 | 3,531,905.4 |
| Water Area | 0.0 | 2.9 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Athens, ME | Madison, ME | United States |
| Age 0 to 4 | 10.0% | 0.5% | 5.9% |
| Age 5 to 9 | 5.8% | 4.7% | 6.1% |
| Age 10 to 14 | 5.6% | 3.2% | 6.6% |
| Age 15 to 17 | 3.1% | 4.2% | 3.9% |
| Age 18 to 20 | 4.3% | 2.6% | 4.0% |
| Age 21 to 24 | 6.5% | 3.9% | 5.2% |
| Age 25 to 34 | 5.0% | 12.7% | 13.8% |
| Age 35 to 44 | 9.9% | 11.5% | 12.9% |
| Age 45 to 54 | 15.4% | 18.1% | 12.6% |
| Age 55 to 59 | 7.1% | 6.1% | 6.7% |
| Age 60 to 64 | 6.7% | 8.8% | 6.3% |
| Age 65 to 74 | 9.2% | 15.8% | 9.6% |
| Age 75 to 84 | 5.3% | 5.3% | 4.5% |
| Age 85 and over | 6.1% | 2.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Athens, ME | Madison, ME | United States |
| White | 94.6% | 97.0% | 59.4% |
| Black | 0.1% | 0.3% | 12.2% |
| Asian | 0.4% | 0.1% | 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 | 4.7% | 0.2% | 3.2% |
| Hispanic | 0.1% | 2.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Athens, ME | Madison, ME | United States |
| Married Population | 47.3% | 55.5% | 49.8% |
| Currently Married | 44.8% | 53.6% | 48.0% |
| Married but Separated | 2.5% | 1.8% | 1.8% |
| Single Population | 52.7% | 44.6% | 50.2% |
| Never Married | 25.7% | 22.0% | 33.8% |
| Divorced | 12.9% | 13.6% | 10.8% |
| Widowed | 14.2% | 8.9% | 5.6% |
| space5 | | | |
| Household Size | 2.56 | 2.27 | 2.60 |
| Households | 270 | 1,995 | 124,010,992 |
| Family Households | 148 | 1,271 | 80,755,759 |
| Married couple, w/children | 35.8% | 15.6% | 30.5% |
| Married couple, no children | 44.6% | 67.7% | 42.9% |
| Non Family Households | 122 | 724 | 43,255,233 |
| Single householder, w/children | 13.5% | 13.0% | 15.8% |
| Single householder, no children | 6.1% | 3.7% | 10.8% |