| | Dexter, MI | Copper Harbor, MI | United States |
| Population | 4,531 | 121 | 329,725,481 |
| Female Population | 51.1% | 59.5% | 50.5% |
| Male Population | 48.9% | 40.5% | 49.5% |
| Median Age | 38.1 | 61 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,078 | 57 | 309,327,143 |
| Population - 2000 | 2,338 | 50 | 285,036,114 |
| Population - 1990 | 1,497 | 19 | 251,960,433 |
| Pop. 2000 to Now | 101.3% | 104.0% | 15.6% |
| Pop. 1990 to Now | 214.4% | 436.8% | 30.8% |
| space4 | | | |
| Population Density | 2,389.8 | 80.0 | 93.4 |
| Land Area | 1.9 | 1.5 | 3,531,905.4 |
| Water Area | 0.1 | 0.9 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Dexter, MI | Copper Harbor, MI | United States |
| Age 0 to 4 | 6.8% | 0.0% | 5.9% |
| Age 5 to 9 | 7.9% | 13.2% | 6.1% |
| Age 10 to 14 | 9.9% | 14.1% | 6.6% |
| Age 15 to 17 | 4.6% | 0.0% | 3.9% |
| Age 18 to 20 | 3.2% | 0.0% | 4.0% |
| Age 21 to 24 | 6.7% | 1.7% | 5.2% |
| Age 25 to 34 | 5.8% | 0.0% | 13.8% |
| Age 35 to 44 | 13.8% | 6.6% | 12.9% |
| Age 45 to 54 | 18.6% | 1.7% | 12.6% |
| Age 55 to 59 | 5.5% | 9.1% | 6.7% |
| Age 60 to 64 | 1.2% | 16.5% | 6.3% |
| Age 65 to 74 | 9.1% | 18.2% | 9.6% |
| Age 75 to 84 | 5.5% | 19.0% | 4.5% |
| Age 85 and over | 1.4% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Dexter, MI | Copper Harbor, MI | United States |
| White | 87.1% | 100.0% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 2.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.7% | 0.0% | 0.4% |
| Two or More Races | 2.9% | 0.0% | 3.2% |
| Hispanic | 7.3% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Dexter, MI | Copper Harbor, MI | United States |
| Married Population | 54.6% | 65.9% | 49.8% |
| Currently Married | 54.1% | 65.9% | 48.0% |
| Married but Separated | 0.5% | 0.0% | 1.8% |
| Single Population | 45.4% | 34.1% | 50.2% |
| Never Married | 25.8% | 18.2% | 33.8% |
| Divorced | 12.4% | 8.0% | 10.8% |
| Widowed | 7.2% | 8.0% | 5.6% |
| space5 | | | |
| Household Size | 2.57 | 2.16 | 2.60 |
| Households | 1,763 | 56 | 124,010,992 |
| Family Households | 1,251 | 31 | 80,755,759 |
| Married couple, w/children | 39.2% | 12.9% | 30.5% |
| Married couple, no children | 33.4% | 77.4% | 42.9% |
| Non Family Households | 512 | 25 | 43,255,233 |
| Single householder, w/children | 22.5% | 0.0% | 15.8% |
| Single householder, no children | 5.0% | 9.7% | 10.8% |