| | Milford, ME | North Potomac, MD | United States |
| Population | 3,052 | 24,449 | 329,725,481 |
| Female Population | 44.3% | 51.5% | 50.5% |
| Male Population | 55.7% | 48.5% | 49.5% |
| Median Age | 39.3 | 44.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,065 | 25,025 | 309,327,143 |
| Population - 2000 | 2,950 | 23,044 | 285,036,114 |
| Population - 1990 | 2,884 | 18,456 | 251,960,433 |
| Pop. 2000 to Now | 0.8% | 7.1% | 15.6% |
| Pop. 1990 to Now | 3.1% | 33.7% | 30.8% |
| space4 | | | |
| Population Density | 66.9 | 3,748.1 | 93.4 |
| Land Area | 45.6 | 6.5 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Milford, ME | North Potomac, MD | United States |
| Age 0 to 4 | 8.5% | 4.0% | 5.9% |
| Age 5 to 9 | 4.8% | 6.4% | 6.1% |
| Age 10 to 14 | 2.3% | 7.2% | 6.6% |
| Age 15 to 17 | 1.6% | 5.0% | 3.9% |
| Age 18 to 20 | 2.9% | 4.0% | 4.0% |
| Age 21 to 24 | 1.7% | 4.0% | 5.2% |
| Age 25 to 34 | 22.0% | 7.6% | 13.8% |
| Age 35 to 44 | 12.3% | 12.6% | 12.9% |
| Age 45 to 54 | 11.7% | 17.0% | 12.6% |
| Age 55 to 59 | 12.0% | 7.8% | 6.7% |
| Age 60 to 64 | 6.1% | 7.3% | 6.3% |
| Age 65 to 74 | 9.4% | 11.2% | 9.6% |
| Age 75 to 84 | 3.9% | 4.9% | 4.5% |
| Age 85 and over | 1.0% | 0.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Milford, ME | North Potomac, MD | United States |
| White | 89.8% | 41.5% | 59.4% |
| Black | 0.0% | 7.3% | 12.2% |
| Asian | 7.1% | 40.1% | 5.6% |
| Native American | 1.9% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 0.0% | 4.4% | 3.2% |
| Hispanic | 1.1% | 6.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Milford, ME | North Potomac, MD | United States |
| Married Population | 46.2% | 65.3% | 49.8% |
| Currently Married | 45.5% | 65.0% | 48.0% |
| Married but Separated | 0.7% | 0.3% | 1.8% |
| Single Population | 53.8% | 34.7% | 50.2% |
| Never Married | 27.8% | 24.4% | 33.8% |
| Divorced | 20.5% | 6.5% | 10.8% |
| Widowed | 5.5% | 3.8% | 5.6% |
| space5 | | | |
| Household Size | 2.55 | 2.98 | 2.60 |
| Households | 1,197 | 8,191 | 124,010,992 |
| Family Households | 783 | 6,759 | 80,755,759 |
| Married couple, w/children | 36.0% | 43.5% | 30.5% |
| Married couple, no children | 39.0% | 45.2% | 42.9% |
| Non Family Households | 414 | 1,432 | 43,255,233 |
| Single householder, w/children | 3.8% | 5.5% | 15.8% |
| Single householder, no children | 21.2% | 5.8% | 10.8% |