| | Portage Lake, ME | Ogunquit, ME | United States |
| Population | 360 | 1,207 | 329,725,481 |
| Female Population | 45.6% | 51.7% | 50.5% |
| Male Population | 54.4% | 48.3% | 49.5% |
| Median Age | 63.1 | 65.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 390 | 898 | 309,327,143 |
| Population - 2000 | 390 | 1,226 | 285,036,114 |
| Population - 1990 | 445 | 967 | 251,960,433 |
| Pop. 2000 to Now | -5.1% | -23.8% | 15.6% |
| Pop. 1990 to Now | -16.9% | -3.4% | 30.8% |
| space4 | | | |
| Population Density | 11.7 | 288.8 | 93.4 |
| Land Area | 30.8 | 4.2 | 3,531,905.4 |
| Water Area | 3.8 | 11.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Portage Lake, ME | Ogunquit, ME | United States |
| Age 0 to 4 | 0.0% | 1.3% | 5.9% |
| Age 5 to 9 | 4.4% | 0.0% | 6.1% |
| Age 10 to 14 | 3.6% | 0.7% | 6.6% |
| Age 15 to 17 | 5.6% | 3.3% | 3.9% |
| Age 18 to 20 | 1.7% | 3.9% | 4.0% |
| Age 21 to 24 | 1.4% | 0.6% | 5.2% |
| Age 25 to 34 | 4.7% | 8.1% | 13.8% |
| Age 35 to 44 | 6.1% | 2.9% | 12.9% |
| Age 45 to 54 | 8.3% | 10.1% | 12.6% |
| Age 55 to 59 | 9.7% | 10.6% | 6.7% |
| Age 60 to 64 | 11.4% | 6.9% | 6.3% |
| Age 65 to 74 | 32.5% | 22.3% | 9.6% |
| Age 75 to 84 | 10.0% | 26.2% | 4.5% |
| Age 85 and over | 0.6% | 3.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Portage Lake, ME | Ogunquit, ME | United States |
| White | 96.4% | 94.2% | 59.4% |
| Black | 0.8% | 0.0% | 12.2% |
| Asian | 0.0% | 0.7% | 5.6% |
| Native American | 0.6% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.5% | 0.4% |
| Two or More Races | 1.4% | 2.5% | 3.2% |
| Hispanic | 0.8% | 1.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Portage Lake, ME | Ogunquit, ME | United States |
| Married Population | 59.2% | 66.7% | 49.8% |
| Currently Married | 55.9% | 66.7% | 48.0% |
| Married but Separated | 3.3% | 0.0% | 1.8% |
| Single Population | 40.8% | 33.3% | 50.2% |
| Never Married | 20.2% | 22.0% | 33.8% |
| Divorced | 13.0% | 4.5% | 10.8% |
| Widowed | 7.6% | 6.9% | 5.6% |
| space5 | | | |
| Household Size | 2.05 | 2.03 | 2.60 |
| Households | 176 | 595 | 124,010,992 |
| Family Households | 124 | 382 | 80,755,759 |
| Married couple, w/children | 7.3% | 9.4% | 30.5% |
| Married couple, no children | 66.9% | 83.5% | 42.9% |
| Non Family Households | 52 | 213 | 43,255,233 |
| Single householder, w/children | 14.5% | 4.5% | 15.8% |
| Single householder, no children | 11.3% | 2.6% | 10.8% |